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1 : feinerer 1252 2013-08-26 Ingo Feinerer <feinerer@logic.at>
2 :    
3 :     * R/source.R (DirSource): Report non-existent or non-readable files.
4 :     Suggested by Ajinkya Kale and Milan Bouchet-Valat.
5 :    
6 : feinerer 1242 2013-08-19 Ingo Feinerer <feinerer@logic.at>
7 :    
8 :     * R/corpus.R (setOldClass): Do not register VCorpus as S4 class
9 :     anymore.
10 :    
11 :     * R/doc.R (setOldClass): Do not register PlainTextDocument as S4 class
12 :     anymore.
13 :    
14 : feinerer 1239 2013-08-09 Ingo Feinerer <feinerer@logic.at>
15 :    
16 :     * DESCRIPTION (License): Changed to GPL-3.
17 :    
18 : feinerer 1234 2013-07-25 Ingo Feinerer <feinerer@logic.at>
19 :    
20 :     * R/complete.R (stemCompletion): Report NA instead of error when no
21 :     completion can be found by the prevalent heuristic. Suggested by Hugh
22 :     Devlin.
23 :    
24 : feinerer 1231 2013-07-10 Ingo Feinerer <feinerer@logic.at>
25 :    
26 :     * R/reader.R (readPDF): Use tm:::pdfinfo() (which needs the pdfinfo
27 :     command line tool) instead of tools:::pdf_info().
28 :    
29 : feinerer 1216 2013-04-11 Ingo Feinerer <feinerer@logic.at>
30 :    
31 :     * R/transform.R (removeWords): Use PCRE UCP to use Unicode properties
32 :     to determine character types.
33 :    
34 : feinerer 1200 2012-12-14 Ingo Feinerer <feinerer@logic.at>
35 :    
36 :     * R/matrix.R (TermDocumentMatrix): Ensure dimnames of type character
37 :     when generating a simple_triplet_matrix. Reported by Arho Suominen.
38 :    
39 : feinerer 1199 2012-12-10 Ingo Feinerer <feinerer@logic.at>
40 :    
41 :     * man/tm_reduce.Rd: Document right to left folding order. Adapt
42 :     example as well. Suggested by Mark Rosenstein.
43 :    
44 : feinerer 1196 2012-12-04 Ingo Feinerer <feinerer@logic.at>
45 :    
46 :     * R/filter.R (sFilter): Avoid attach() and simplify.
47 :    
48 : feinerer 1194 2012-11-02 Ingo Feinerer <feinerer@logic.at>
49 :    
50 :     * R/doc.R (.TextDocument): Use casts to ensure data types and to avoid
51 :     removal of attributes.
52 :    
53 : feinerer 1191 2012-10-03 Ingo Feinerer <feinerer@logic.at>
54 : feinerer 1193
55 : feinerer 1192 * R/weight.R (weightTfIdf, weightSMART): Gracefully handle empty
56 : feinerer 1191 columns and rows (avoids blow-up due to NaN values). Suggested by Jaap
57 :     Frölich.
58 :    
59 : feinerer 1188 2012-07-27 Ingo Feinerer <feinerer@logic.at>
60 :    
61 :     * R/transform.R (removeWords): Allow longer stopword lists.
62 :    
63 : feinerer 1175 2012-01-31 Ingo Feinerer <feinerer@logic.at>
64 :    
65 :     * R/reader.R (readXML): Readers can now set the document language
66 :     themselves.
67 :    
68 : feinerer 1169 2012-01-14 Ingo Feinerer <feinerer@logic.at>
69 :    
70 :     * R/source.R (XMLSource, getElem.XMLSource): Simplifications as
71 :     proposed by Milan Bouchet-Valat.
72 :    
73 : feinerer 1168 2012-01-11 Ingo Feinerer <feinerer@logic.at>
74 :    
75 :     * R/matrix.R (termFreq): Fix processing of user provided
76 :     stopwords. Reported by Bettina Grün.
77 :    
78 : feinerer 1167 2011-12-23 Ingo Feinerer <feinerer@logic.at>
79 :    
80 :     * R/matrix.R (termFreq): Fix invalid handling of
81 :     control$wordLengths[1]. Reported by Steven C. Bagley.
82 :    
83 : feinerer 1166 2011-12-17 Ingo Feinerer <feinerer@logic.at>
84 :    
85 :     * DESCRIPTION (Version): Prepare for CRAN Christmas release.
86 :    
87 : feinerer 1164 2011-12-12 Ingo Feinerer <feinerer@logic.at>
88 :    
89 :     * R/utils.R (map_IETF_Snowball): Map empty input to "porter".
90 :    
91 : feinerer 1161 2011-12-07 Ingo Feinerer <feinerer@logic.at>
92 :    
93 :     * R/transform.R (removePunctuation): Add option to preserve
94 :     intra-word dashes.
95 :    
96 : feinerer 1159 2011-12-06 Ingo Feinerer <feinerer@logic.at>
97 :    
98 :     * R/matrix.R (termFreq): Allow reordering of control option
99 :     processing.
100 :    
101 : feinerer 1151 2011-11-17 Ingo Feinerer <feinerer@logic.at>
102 :    
103 : feinerer 1155 * R/reader.R (readPDF): Use tools:::pdf_info() instead of external
104 :     pdfinfo tool.
105 :    
106 : feinerer 1153 * inst/stopwords/SMART.dat: Add SMART information retrieval system
107 :     stopwords (which are also used by the MC toolkit).
108 :    
109 : feinerer 1151 * R/matrix (termFreq): Allow local option \code{bounds$local} to
110 :     restrict how often a term may appear in each document (generalizes
111 :     \code{minDocFreq}). Similarly the local option \code{wordLenghts}
112 :     for word length bounds (generalizes \code{minWordLength}).
113 :    
114 :     * R/matrix.R (TermDocumentMatrix.VCorpus): New global option
115 :     \code{bounds$global} for restricting how often a term is allowed
116 :     to appear in different documents.
117 :    
118 :     * R/matrix.R (TermDocumentMatrix.VCorpus): Distinguish between
119 :     local options delegated internally to termFreq() and global
120 :     options which are processed by the term-document matrix
121 :     constructor itself.
122 :    
123 : feinerer 1150 2011-11-15 Ingo Feinerer <feinerer@logic.at>
124 :    
125 :     * man/getTokenizers.Rd: Document getTokenizers().
126 :    
127 :     * man/tokenizer.Rd: Document MC_tokenizer() and scan_tokenizer().
128 :    
129 : feinerer 1149 2011-11-04 Ingo Feinerer <feinerer@logic.at>
130 :    
131 :     * man/matrix.Rd: Document as.TermDocumentMatrix.term_frequency.
132 :    
133 : feinerer 1150 * man/combine.Rd: Document c.term_frequency().
134 : feinerer 1149
135 : feinerer 1147 2011-10-11 Ingo Feinerer <feinerer@logic.at>
136 :    
137 :     * R/meta.R (`meta<-.Corpus`): Assume that the replacement value
138 :     can be accessed via '[' and not '[['.
139 :    
140 : feinerer 1139 2011-08-24 Ingo Feinerer <feinerer@logic.at>
141 :    
142 :     * R/stopwords.R (stopwords): Raise an error if no stopwords are
143 :     available for requested language. Suggested by Derek M Jones.
144 :    
145 : feinerer 1136 2011-05-27 Ingo Feinerer <feinerer@logic.at>
146 :    
147 :     * R/weight.R (weightSMART): Implement Cosine and pivoted unique
148 :     normalization.
149 :    
150 : feinerer 1121 2011-02-17 Ingo Feinerer <feinerer@logic.at>
151 :    
152 :     * R/transform.R (stemDocument.PlainTextDocument): Use language
153 :     argument.
154 :    
155 : feinerer 1117 2011-02-04 Ingo Feinerer <feinerer@logic.at>
156 :    
157 :     * R/source.R: Store strings and connections instead of unevaluated
158 :     calls.
159 :    
160 : feinerer 1114 2010-11-26 Ingo Feinerer <feinerer@logic.at>
161 :    
162 :     * R/corpus.R (Corpus): Allow init and exit hooks for readers.
163 :    
164 : feinerer 1108 2010-10-22 Ingo Feinerer <feinerer@logic.at>
165 :    
166 :     * R/matrix.R (.TermDocumentMatrix): Make Weighting an attribute
167 :     (instead of a list element).
168 :    
169 : feinerer 1102 2010-10-16 Ingo Feinerer <feinerer@logic.at>
170 :    
171 :     * R/corpus.R (`[[.VCorpus`, `[[.PCorpus'): Access individual
172 : feinerer 1108 documents by names (fallback to IDs if names are not set).
173 : feinerer 1102
174 : feinerer 1095 2010-08-25 Ingo Feinerer <feinerer@logic.at>
175 :    
176 :     * R/corpus.R (c.Corpus): When concatenating corpora, the argument
177 :     \code{recursive} now determines whether existing corpus meta data
178 :     is used.
179 :    
180 : feinerer 1084 2010-08-06 Ingo Feinerer <feinerer@logic.at>
181 :    
182 :     * R/transform.R: Removed convert_UTF_8(). Use enc2utf8() instead.
183 :    
184 : feinerer 1080 2010-06-17 Ingo Feinerer <feinerer@logic.at>
185 :    
186 :     * R/matrix.R (TermDocumentMatrix): If a dictionary is given do not
187 :     remove terms not occurring in the corpus anymore.
188 :    
189 : feinerer 1075 2010-06-02 Ingo Feinerer <feinerer@logic.at>
190 :    
191 :     * R/plot.R (Zipf_plot, Heaps_plot): Plotting functions for Zipf's
192 :     and Heaps' law.
193 :    
194 : feinerer 1070 2010-05-18 Ingo Feinerer <feinerer@logic.at>
195 :    
196 :     * R/corpus.R (Corpus, PCorpus): Use element names as IDs if
197 :     provided by a source.
198 :    
199 : feinerer 1063 2010-04-09 Ingo Feinerer <feinerer@logic.at>
200 :    
201 :     * R/source.R (.Source): Provide document names.
202 :    
203 : feinerer 1062 2010-04-07 Ingo Feinerer <feinerer@logic.at>
204 :    
205 :     * R/meta.R (`content_or_meta`): Utility function.
206 :    
207 : feinerer 1061 2010-03-19 Ingo Feinerer <feinerer@logic.at>
208 :    
209 :     * R/reader.R (readReut21578XML, readReut21578XMLasPlain): Extract
210 :     TOPICS, LEWISSPLIT, CGISPLIT, and OLDID meta tags.
211 :    
212 : feinerer 1048 2010-03-03 Ingo Feinerer <feinerer@logic.at>
213 :    
214 : feinerer 1051 * R/weight.R (weightTfIdf): Added normalization option.
215 :    
216 : feinerer 1048 * man/tm_tag_score.Rd: Add General Inquirer example for sentiment
217 :     analysis.
218 :    
219 : feinerer 1046 2010-02-25 Ingo Feinerer <feinerer@logic.at>
220 :    
221 :     * R/score.R (tm_tag_score): Compute a score from the number of
222 :     tags matching in a document.
223 :    
224 : feinerer 1041 2010-02-18 Ingo Feinerer <feinerer@logic.at>
225 :    
226 :     * R/complete.R (stemCompletion): New completion heuristics.
227 :    
228 :     2010-02-17 Ingo Feinerer <feinerer@logic.at>
229 :    
230 :     * R/plot.R (plot.TermDocumentMatrix): Memory improvements.
231 :    
232 : feinerer 1040 2010-02-06 Ingo Feinerer <feinerer@logic.at>
233 :    
234 :     * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
235 :     setOldClass(c(..., "list")) works.
236 :    
237 : feinerer 1039 2010-01-22 Ingo Feinerer <feinerer@logic.at>
238 :    
239 :     * R/transform.R (stemDocument.character): In case input is a
240 :     simple character just delegate to the default Snowball stemmer.
241 :    
242 : feinerer 1038 2010-01-15 Ingo Feinerer <feinerer@logic.at>
243 :    
244 :     * R/reader.R (readReut21578XML, readRCV1): Extract more meta
245 :     data.
246 :    
247 : feinerer 1034 2010-01-12 Ingo Feinerer <feinerer@logic.at>
248 :    
249 :     * R/doc.R (`Content<-`): Be careful with names attribute.
250 :    
251 : stefan7th 1032 2010-01-07 Stefan Theussl <stefan.theussl@wu.ac.at>
252 :    
253 :     * R/source.R (DirSource): Improved implementation especially when
254 : feinerer 1042 handling many (> 1M) files.
255 : stefan7th 1032
256 : feinerer 1029 2009-12-22 Ingo Feinerer <feinerer@logic.at>
257 :    
258 :     * R/source.R (getElem.URISource): Use encoding argument.
259 :    
260 : feinerer 1025 2009-12-11 Ingo Feinerer <feinerer@logic.at>
261 :    
262 :     * R/doc.R (setOldClass): Register S3 document classes to be
263 :     recognized by S4 methods.
264 :    
265 : feinerer 1023 2009-11-25 Ingo Feinerer <feinerer@logic.at>
266 :    
267 :     * R/matrix.R (termFreq): Add option to remove punctuation
268 :     characters.
269 :    
270 : feinerer 1022 2009-11-19 Ingo Feinerer <feinerer@logic.at>
271 :    
272 :     * R/matrix.R (c.TermDocumentMatrix): Added combine method for
273 :     merging multiple term-document matrices.
274 :    
275 : feinerer 1020 2009-11-17 Ingo Feinerer <feinerer@logic.at>
276 :    
277 : feinerer 1021 * R/corpus.R (setOldClass): Register S3 corpus classes to be
278 :     recognized by S4 methods.
279 :    
280 : feinerer 1020 * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
281 :     that CRAN Mac OS X builds do not fail any longer.
282 :    
283 : feinerer 1019 2009-11-15 Ingo Feinerer <feinerer@logic.at>
284 :    
285 :     * R/matrix.R (tokenize): Use scan(..., what = "character") instead
286 :     of RWeka:AlphabeticTokenizer() as default.
287 :    
288 : feinerer 1018 2009-11-14 Ingo Feinerer <feinerer@logic.at>
289 :    
290 :     * R/transform.R (removeWords.PlainTextDocument): Fix bug which
291 :     caused words at the beginning or the end of a line not to be removed. Do
292 :     not delete whitespace anymore.
293 :    
294 : feinerer 1017 2009-11-12 Ingo Feinerer <feinerer@logic.at>
295 :    
296 :     * R/source.R (DirSource): Default to working directory if no path
297 :     is specified.
298 :    
299 :     2009-11-11 Ingo Feinerer <feinerer@logic.at>
300 :    
301 :     * R/source.R (DirSource): Stop on empty directories.
302 :    
303 : feinerer 1015 2009-11-07 Ingo Feinerer <feinerer@logic.at>
304 :    
305 :     * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
306 :     named documents.
307 :    
308 : feinerer 1013 2009-10-21 Ingo Feinerer <feinerer@logic.at>
309 :    
310 :     * R/transform.R (removeWords): Improve regular expressions.
311 :    
312 : feinerer 1011 2009-10-19 Ingo Feinerer <feinerer@logic.at>
313 :    
314 :     * R/meta.R (DublinCore): Allow lower case tags.
315 :    
316 : feinerer 1010 2009-10-09 Ingo Feinerer <feinerer@logic.at>
317 :    
318 :     * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
319 :     instead of x$children.
320 :    
321 : feinerer 1007 2009-09-15 Ingo Feinerer <feinerer@logic.at>
322 :    
323 :     * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
324 :    
325 : feinerer 993 2009-09-06 Ingo Feinerer <feinerer@logic.at>
326 :    
327 :     * R/: Use S3 instead of S4 class system.
328 :    
329 : feinerer 982 2009-08-11 Ingo Feinerer <feinerer@logic.at>
330 :    
331 :     * R/reader.R (readMail): Moved to tm.plugin.mail package.
332 :    
333 : feinerer 973 2009-07-04 Ingo Feinerer <feinerer@logic.at>
334 :    
335 :     * R/reader.R (readNewsgroup): Rename to readMail as newsgroup
336 :     postings are basically e-mails with some extra headers.
337 :    
338 : feinerer 972 2009-07-03 Ingo Feinerer <feinerer@logic.at>
339 :    
340 : feinerer 981 * R/transform.R: Move convertMboxEml, removeCitation,
341 :     removeMultipart, and removeSignature to the tm.plugin.mail package
342 :     since they are mainly utility functions (for handling e-mails) and
343 :     not very framework specific.
344 : feinerer 972
345 : feinerer 962 2009-06-28 Ingo Feinerer <feinerer@logic.at>
346 :    
347 :     * man/: Fix documentation.
348 :    
349 : feinerer 960 2009-06-26 Ingo Feinerer <feinerer@logic.at>
350 :    
351 :     * R/reader.R (readReut21578XMLasPlain): New reader which returns a
352 :     plain text document instead of an XML document for texts of the
353 :     Reuters-21578 dataset.
354 :    
355 :     * R/sparse.R: Removed since the slam package is now available on
356 :     CRAN.
357 :    
358 :     * DESCRIPTION (Depends): Add slam package.
359 :    
360 : feinerer 959 2009-06-17 Ingo Feinerer <feinerer@logic.at>
361 :    
362 :     * R/transform.R (stemDoc): Fix character(0) handling.
363 :    
364 : feinerer 957 2009-06-12 Ingo Feinerer <feinerer@logic.at>
365 :    
366 :     * R/doc.R (show): Pretty print.
367 :    
368 : feinerer 954 2009-05-27 Ingo Feinerer <feinerer@logic.at>
369 :    
370 :     * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
371 :     gracefully.
372 :    
373 : feinerer 946 2009-05-13 Ingo Feinerer <feinerer@logic.at>
374 :    
375 :     * R/corpus.R: Make corpus virtual. Implement corpus with standard
376 :     and permanent storage semantics.
377 :    
378 :     * DESCRIPTION: New major release. A *lot* of improvements.
379 :    
380 : feinerer 945 2009-05-04 Ingo Feinerer <feinerer@logic.at>
381 :    
382 :     * NAMESPACE: Export some simple_triplet_matrix functions.
383 :    
384 : feinerer 942 2009-04-28 Ingo Feinerer <feinerer@logic.at>
385 :    
386 :     * R/weight.R: Adapt tf-idf to new matrix format.
387 :    
388 : feinerer 941 2009-04-27 Ingo Feinerer <feinerer@logic.at>
389 :    
390 :     * R/matrix.R: Create two distinct classes for term-document and
391 :     document-term matrices.
392 :    
393 : feinerer 938 2009-04-26 Ingo Feinerer <feinerer@logic.at>
394 :    
395 : feinerer 939 * R/termdocmatrix.R: No longer use Matrix package. This reduces
396 :     package start-up time significantly.
397 : feinerer 938
398 : feinerer 930 2009-04-11 Ingo Feinerer <feinerer@logic.at>
399 :    
400 :     * inst/doc/tm.Rnw: Fix code/documentation mismatch.
401 :    
402 : feinerer 926 2009-04-04 Ingo Feinerer <feinerer@logic.at>
403 :    
404 :     * R/transform.R (tmReduce): Combine multiple maps into one
405 :     transformation.
406 :    
407 : feinerer 923 2009-04-03 Ingo Feinerer <feinerer@logic.at>
408 :    
409 : feinerer 924 * R/weight.R: Remove weightLogical since it does not return a
410 :     dgCMatrix.
411 :    
412 : feinerer 925 * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
413 :     or TermDocumentMatrix instead.
414 : feinerer 923
415 : feinerer 919 2009-03-28 Ingo Feinerer <feinerer@logic.at>
416 :    
417 :     * inst/doc/extensions.Rnw: Finished vignette.
418 :    
419 : feinerer 918 2009-03-27 Ingo Feinerer <feinerer@logic.at>
420 :    
421 :     * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
422 :     DocumentTermMatrix representations.
423 :    
424 : feinerer 912 2009-03-23 Ingo Feinerer <feinerer@logic.at>
425 :    
426 :     * R/reader.R (readXML): New reader for arbitrary XML files.
427 :    
428 : feinerer 909 2009-03-22 Ingo Feinerer <feinerer@logic.at>
429 :    
430 : feinerer 910 * R/source.R (CSVSource): Defunct (use DataframeSource instead).
431 : feinerer 911 (XMLSource): New XMLSource class for arbitrary XML files.
432 :     (Source): New slot Vectorized.
433 : feinerer 910
434 : feinerer 904 2009-03-21 Ingo Feinerer <feinerer@logic.at>
435 :    
436 : feinerer 939 * R/reader.R (readTabular): Experimental reader for tabular data
437 :     structures which can be customized via user-defined mappings.
438 : feinerer 908
439 : feinerer 905 * R/reader.R: Always use UTC time zone.
440 :    
441 : feinerer 904 * R/AAA.R (.onLoad): No longer try to start a MPI cluster.
442 :    
443 : feinerer 903 2009-03-20 Ingo Feinerer <feinerer@logic.at>
444 :    
445 :     * R/reader.R (readDOC): Options can be passed over to antiword.
446 :    
447 :     * R/reader.R (readPDF): Options can be passed over to pdfinfo and
448 :     pdftotext.
449 :    
450 : feinerer 895 2009-03-10 Ingo Feinerer <feinerer@logic.at>
451 :    
452 :     * R/source.R (DirSource): Add pattern and ignore.case arguments
453 :     which are internally passed over to list.files().
454 :    
455 : feinerer 893 2009-03-02 Ingo Feinerer <feinerer@logic.at>
456 :    
457 :     * inst/doc/tm.Rnw: Suppress pointless loading message.
458 :    
459 : feinerer 886 2009-01-29 Ingo Feinerer <feinerer@logic.at>
460 :    
461 :     * DESCRIPTION: Speed up package loading (via moving packages not
462 :     strictly necessary for normal operation to Suggests instead of
463 :     Depends).
464 :    
465 : feinerer 882 2009-01-08 Ingo Feinerer <feinerer@logic.at>
466 :    
467 :     * R/reader.R (readNewsgroup): The date format is now configurable.
468 :    
469 : feinerer 881 2008-12-20 Ingo Feinerer <feinerer@logic.at>
470 :    
471 :     * R/preprocess.R (convertMboxEml): Fix off-by-one error.
472 :    
473 : feinerer 877 2008-12-16 Ingo Feinerer <feinerer@logic.at>
474 :    
475 :     * R/termdocmatrix.R (TermDocMatrix): Sort row indices.
476 :    
477 : feinerer 875 2008-12-06 Ingo Feinerer <feinerer@logic.at>
478 :    
479 : feinerer 876 * R/source.R (DataframeSource): New source class for data frames.
480 :    
481 : feinerer 875 * R/source.R: Fixed non-standard call evaluation.
482 :    
483 : feinerer 874 2008-11-29 Ingo Feinerer <feinerer@logic.at>
484 :    
485 :     * R/source.R (URISource): New source class for a single document.
486 :    
487 : feinerer 873 2008-11-27 Ingo Feinerer <feinerer@logic.at>
488 :    
489 :     * R/source.R: Refactoring.
490 :    
491 : feinerer 872 2008-11-25 Ingo Feinerer <feinerer@logic.at>
492 :    
493 :     * R/AAA.R (.onLoad, .Last): Use tryCatch() to handle misconfigured
494 :     Rmpi installations more gracefully.
495 :    
496 : feinerer 869 2008-11-08 Ingo Feinerer <feinerer@logic.at>
497 :    
498 :     * R/source.R (Source): Add Length slot.
499 :    
500 :     2008-11-06 Ingo Feinerer <feinerer@logic.at>
501 :    
502 :     * R/AAA.R: Unify duplicated .onLoad function.
503 :    
504 : feinerer 868 2008-11-03 Ingo Feinerer <feinerer@logic.at>
505 :    
506 :     * DESCRIPTION (Suggests): Added Rmpi.
507 :    
508 : feinerer 866 2008-11-02 Ingo Feinerer <feinerer@logic.at>
509 :    
510 :     * R/source.R (getElem): Fix 'no visible binding' warning.
511 :    
512 :     * man/WeightFunction.Rd: Fix signature.
513 :    
514 : feinerer 865 2008-08-03 Ingo Feinerer <feinerer@logic.at>
515 :    
516 :     * R/weight.R: Introduce name abbreviations for weighting functions.
517 :    
518 : feinerer 861 2008-07-24 Ingo Feinerer <feinerer@logic.at>
519 :    
520 :     * R/AAA.R (.onLoad, .Last): Start and stop MPI cluster.
521 :    
522 :     * R/cluster.R: Provide convenience functions for using a MPI
523 :     cluster.
524 :    
525 :     * R/termdocmatrix.R (TermDocMatrix): Use MPI cluster if
526 :     available.
527 :    
528 :     * R/textdoccol.R (tmIndex, tmFilter, tmMap): Use MPI cluster if
529 :     available.
530 :    
531 : feinerer 860 2008-07-17 Ingo Feinerer <feinerer@logic.at>
532 :    
533 :     * R/textdoccol.R (lapply): Removed debug print out.
534 :    
535 : feinerer 856 2008-06-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
536 :    
537 :     * R/reader.R (readRCV1): Improved meta data extraction from
538 :     Reuters Corpus Volume 1 documents.
539 :    
540 : feinerer 855 2008-05-25 Ingo Feinerer <h0125130@wu-wien.ac.at>
541 :    
542 :     * R/transform.R: Ensure that all mappings preserve multiline
543 :     structures.
544 :    
545 : feinerer 854 2008-05-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
546 :    
547 :     * R/filter.R: Every filter has now an attribute indicating whether
548 :     it sould be applied to document level (doclevel).
549 :    
550 :     * R/textdoccol.R (tmFilter): Set searchFullText as new default
551 :     filter.
552 :    
553 : feinerer 838 2008-04-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
554 :    
555 :     * R/transform.R (replacePatterns): Replaced removeWords by
556 :     replacePatterns. Suggested by Christian Buchta.
557 :    
558 :     * R/textdoccol.R (inspect): Improved formatting.
559 :    
560 : feinerer 836 2008-04-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
561 :    
562 :     * inst/CITATION: Updated JSS article information.
563 :    
564 :     * R/textdoccol.R (setAs): Added coerce method from list to
565 :     corpus.
566 :    
567 :     * R/meta.R (meta): Improved meta data handling.
568 :    
569 : feinerer 833 2008-03-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
570 :    
571 :     * R/textdoccol.R (materialize, tmMap): Improvements suggested by
572 :     Christian Buchta.
573 :    
574 :     * inst/CITATION: Added template to include JSS article reference.
575 :    
576 : feinerer 831 2008-03-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
577 :    
578 :     * R/textdoccol.R (tmMap): Introduced lazy mapping.
579 :    
580 : feinerer 832 * R/source.R: Added VectorSource.
581 :    
582 : feinerer 825 2008-02-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
583 :    
584 :     * man/: Language codes should be in ISO 639-1 format.
585 :    
586 : feinerer 826 * R/textdoccol.R (asPlain): Preserve local meta data.
587 :    
588 : feinerer 819 2008-01-31 Ingo Feinerer <h0125130@wu-wien.ac.at>
589 :    
590 :     * R/textdoccol.R (writeCorpus): Function for writing a corpus
591 :     containing plain text documents to disk.
592 :    
593 : feinerer 817 2008-01-30 Ingo Feinerer <h0125130@wu-wien.ac.at>
594 :    
595 :     * R/termdocmatrix.R (TermDocMatrix): Ensure that dimnames are
596 :     always set correctly.
597 :    
598 :     * R/textdoccol.R: Set load = TRUE as default for load on demand
599 :     since in most cases this is the wanted behaviour.
600 :    
601 : feinerer 816 2008-01-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
602 :    
603 :     * R/: Renamed TextDocCol to Corpus, and Corpus to Content.
604 :    
605 :     * DESCRIPTION: Updated Version to 0.3 due to core name changes.
606 :    
607 : feinerer 813 2008-01-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
608 :    
609 :     * R/meta.R (meta): New function for consistent access to meta data
610 :     of document collections, repositories, and texts.
611 :    
612 : feinerer 810 2008-01-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
613 :    
614 :     * R/: Better support for encodings.
615 :    
616 : feinerer 808 2008-01-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
617 :    
618 :     * R/textdoccol.R (TextDocCol): Fixed bug regarding default reader
619 :     selection when no reader argument is given.
620 :    
621 : feinerer 807 2008-01-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
622 :    
623 :     * R/source.R (CSVSource): Now uses read.csv instead of scan
624 :     internally.
625 :    
626 : feinerer 806 2008-01-02 Ingo Feinerer <h0125130@wu-wien.ac.at>
627 :    
628 :     * R/reader.R (getReaders): Returns available reader functions.
629 :    
630 :     * R/termdocmatrix.R (TermDocMatrix): Set new modular constructor
631 :     as default.
632 :    
633 : feinerer 802 2007-12-02 Ingo Feinerer <h0125130@wu-wien.ac.at>
634 :    
635 :     * R/stopwords.R (stopwords): Shortened code, removed codetools
636 :     variable warnings.
637 :    
638 :     * man/: Documentation for showMeta, added an example for tmMap.
639 :    
640 :     * inst/doc/tm.Rnw: Updated vignette, comments on MS word reader,
641 :     some minor typos fixed.
642 :    
643 : feinerer 801 2007-12-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
644 :    
645 :     * R/aobjects.R (showMeta): Added method for pretty printing a
646 :     text document's meta data.
647 :    
648 : feinerer 799 2007-11-29 Ingo Feinerer <h0125130@wu-wien.ac.at>
649 :    
650 :     * R/textdoccol.R (TextDocCol): Better handling of empty
651 :     arguments.
652 :    
653 :     * NAMESPACE: Exported readDOC.
654 :    
655 : feinerer 800 * man/completeStems.Rd: Added an example.
656 :    
657 : feinerer 797 2007-11-18 Ingo Feinerer <h0125130@wu-wien.ac.at>
658 : feinerer 796
659 : feinerer 797 * R/stopwords.R (stopwords): Look up .dat files at every
660 :     call. Allows users to modify stopword .dat files interactively.
661 :    
662 :     2007-11-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
663 :    
664 : feinerer 796 * R/termdocmatrix.R (termFreq): Correct processing of empty
665 :     documents.
666 :    
667 : feinerer 795 2007-10-27 Ingo Feinerer <h0125130@wu-wien.ac.at>
668 :    
669 :     * man/: Updated documentation.
670 :    
671 : feinerer 790 2007-10-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
672 :    
673 : feinerer 793 * R/complete.R (completeStems): Completes (heuristically) word
674 :     stems.
675 :    
676 : feinerer 790 * R/termdocmatrix.R (TermDocMatrix2): New modular
677 :     constructor.
678 :    
679 :     * NAMESPACE: Exported termFreq.
680 :    
681 : feinerer 789 2007-10-16 Ingo Feinerer <h0125130@wu-wien.ac.at>
682 :    
683 :     * R/reader.R (readDOC): Added MS Word reader (using antiword).
684 :    
685 : feinerer 788 2007-10-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
686 :    
687 :     * R/weight.R: Weighting functions for TermDocMatrix.
688 :    
689 : feinerer 785 2007-10-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
690 :    
691 :     * R/termdocmatrix.R (dimnames, colnames, rownames): Wrapper
692 :     functions for accessing dimension, column, and row names.
693 :    
694 :     * R/plot.R (plot.TermDocMatrix): Plot correlations between terms.
695 :    
696 : feinerer 779 2007-09-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
697 :    
698 :     * man/removePunctuation.Rd: Added documentation. Function also exported to NAMESPACE.
699 :    
700 : feinerer 777 2007-08-28 Ingo Feinerer <h0125130@wu-wien.ac.at>
701 :    
702 :     * R/fungen.R: Use S4 class for function generators instead of S3 attributes.
703 :    
704 : feinerer 776 2007-07-29 Ingo Feinerer <h0125130@wu-wien.ac.at>
705 :    
706 :     * R/reader.R (readPDF): Removed manual checks for pdftotext and
707 :     pdfinfo. The system call gives a warning anyway.
708 :    
709 : feinerer 775 2007-07-28 Ingo Feinerer <h0125130@wu-wien.ac.at>
710 :    
711 :     * R/textdoccol.R (asPlain): Conversion from
712 :     StructuredTextDocuments to PlainTextDocuments.
713 :    
714 : feinerer 773 2007-07-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
715 :    
716 : feinerer 774 * R/termdocmatrix.R: Added convenience methods ("[", nrow, ncol)
717 :     for accessing term-document matrices.
718 :    
719 : feinerer 773 * inst/doc/tm.Rnw: readPDF is only called if pdftotext and pdfinfo
720 :     are installed.
721 :    
722 : feinerer 770 2007-07-17 Ingo Feinerer <h0125130@wu-wien.ac.at>
723 :    
724 :     * R/termdocmatrix.R (TermDocMatrix): Improved efficiency. Kudos to
725 :     Christian Buchta.
726 :    
727 : feinerer 768 2007-07-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
728 :    
729 :     * inst/doc/tm.Rnw: Update vignette (readPDF, readHTML, preprocessReut21578XML).
730 :    
731 : feinerer 766 2007-07-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
732 :    
733 : feinerer 767 * R/reader.R (readHTML): Added very simple HTML reader to obtain StructuredTextDocuments.
734 :    
735 : feinerer 766 * R/reader.R (readPDF): Added PDF reader.
736 :    
737 : feinerer 765 2007-07-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
738 :    
739 :     * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
740 :    
741 :     * inst/stopwords/english.dat: Added the term "yes" to stopwords.
742 :    
743 :     * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
744 :    
745 :     * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
746 :    
747 : feinerer 763 2007-07-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
748 :    
749 :     * R/distmeasure.R (dissimilarity): Replaced dists call from
750 :     package cba by new dist call from package proxy.
751 :    
752 : feinerer 761 2007-07-10 Ingo Feinerer <h0125130@wu-wien.ac.at>
753 :    
754 :     * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
755 :    
756 : feinerer 760 2007-06-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
757 :    
758 :     * R/termdocmatrix.R: require() uses the quietly option to suppress
759 :     loading messages.
760 :    
761 : feinerer 758 2007-06-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
762 :    
763 :     * R/dictionary.R: Added dictionary support.
764 :    
765 : feinerer 757 2007-06-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
766 :    
767 :     * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
768 :     documents. This simplifies some functions, e.g., asPlain.
769 :    
770 : feinerer 756 2007-06-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
771 :    
772 :     * inst/doc/tm.Rnw: Fixed some typos in vignette.
773 :    
774 : feinerer 755 2007-06-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
775 :    
776 :     * R/textdoccol.R (replaceWords): Added method to replace a set of
777 :     words by a single word. Useful for synonyms.
778 :    
779 : feinerer 754 2007-05-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
780 :    
781 :     * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
782 :    
783 : feinerer 752 2007-05-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
784 :    
785 :     * R/termdocmatrix.R (textvector): Small fix for dealing with empty
786 :     vectors. Thanks to Ariel Maguyon for his error report.
787 :     (removeSparseTerms): New function to remove columns from a
788 :     term-document matrix exceeding a sparse factor.
789 :    
790 : feinerer 751 2007-05-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
791 :    
792 :     * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
793 :    
794 : feinerer 750 2007-05-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
795 :    
796 :     * man/sFilter.Rd: Corrected documentation on statement format (use
797 :     '==' instead of '=').
798 :    
799 : feinerer 749 2007-05-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
800 :    
801 :     * R/aobjects.R (StructuredTextDocument): Inherits from
802 :     TextDocument.
803 :    
804 : feinerer 748 2007-05-04 Ingo Feinerer <h0125130@wu-wien.ac.at>
805 :    
806 :     * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
807 :     on sparse matrices as proposed by Martin Maechler.
808 :    
809 : feinerer 747 2007-04-27 Ingo Feinerer <h0125130@wu-wien.ac.at>
810 :    
811 :     * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
812 :     \pkg{filehash} version makes them deprecated.
813 :    
814 : feinerer 744 2007-04-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
815 :    
816 :     * R/termdocmatrix.R (textvector): Stemming is now performed before
817 :     erasing stopwords.
818 :     (weightMatrix): Adapted to handle sparse matrices.
819 :     (TermDocMatrix): Sparse matrix is now efficiently built by
820 :     direct stepwise insertion of row values into it.
821 :    
822 : feinerer 741 2007-04-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
823 :    
824 :     * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
825 :     due to ongoing problems. For our purposes the latter is as useful
826 :     as the replaced package.
827 :    
828 : feinerer 738 2007-04-20 Ingo Feinerer <h0125130@wu-wien.ac.at>
829 :    
830 :     * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.
831 :    
832 :     * man/TermDocMatrix.Rd: Remove deprecated \code{language} argument.
833 :    
834 : feinerer 737 2007-04-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
835 :    
836 :     * R/resolve.R (resolveISOCode): Added ISO 639-1 codes for
837 :     languages with available stopwords.
838 :    
839 : feinerer 736 2007-04-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
840 :    
841 :     * inst/doc/tm.Rnw: Minor corrections in the vignette.
842 :    
843 : feinerer 731 2007-04-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
844 :    
845 : feinerer 732 * DESCRIPTION: Update to version 0.2, since a lot of new features
846 :     have been integrated.
847 : feinerer 731
848 : feinerer 732 * inst/stopwords: Updated existing stopwords and added stopwords
849 :     for various other languages.
850 :    
851 : feinerer 729 2007-04-10 Ingo Feinerer <h0125130@wu-wien.ac.at>
852 :    
853 : feinerer 730 * man/: Updated documentation.
854 :    
855 : feinerer 729 * Work/testDb.R: Script to test database stuff.
856 :    
857 :     * R/: Fixed various database related bugs. Seems to be rather
858 :     useable now, i.e., consider as alpha status for now.
859 :    
860 : feinerer 727 2007-04-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
861 :    
862 :     * R/: Fixed some bugs related to database support.
863 :    
864 : feinerer 726 2007-04-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
865 :    
866 :     * man/: Added a lot of examples to the manuals.
867 :    
868 : feinerer 725 2007-04-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
869 :    
870 :     * man/: Updated parts of the documentation.
871 :    
872 :     * R/textdoccol.R (asPlain): Added conversion from newsgroup
873 :     documents to plain text documents.
874 :    
875 : feinerer 722 2007-04-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
876 :    
877 : feinerer 724 * R/textdoccol.R: Finished experimental database support. Not yet
878 :     intensively tested.
879 :    
880 : feinerer 723 * R/source.R: Now each source has a default reader.
881 :    
882 : feinerer 722 * R/reader.R: \code{FunctionGenerator} is now an attribute, not a
883 :     class anymore.
884 :    
885 :     * R/plaintextdoc.R: Custom show method for plain text documents.
886 :    
887 :     * R/aobjects.R: Added a class for structured text documents.
888 :    
889 :     * R/reader.R: Replaced remaining \code{parser} occurrences with
890 :     \code{reader}.
891 :    
892 :     * R/textdoccol.R (summary): Indent tags.
893 :    
894 : feinerer 725 * R/textdoccol.R (removePunctuation): Transform method to remove
895 : feinerer 722 punctuation marks.
896 :    
897 : feinerer 721 2007-03-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
898 :    
899 :     * R/textdoccol.R (sFilter): Simplified sFilter significantly by
900 :     using prescindMeta().
901 :    
902 : feinerer 719 2007-03-18 Ingo Feinerer <h0125130@wu-wien.ac.at>
903 :    
904 :     * R/textdoccol.R: Improved database support.
905 :    
906 : feinerer 717 2007-03-16 Ingo Feinerer <h0125130@wu-wien.ac.at>
907 :    
908 : feinerer 718 * R/termdocmatrix.R (TermDocMatrix): Uses sparse matrices.
909 :    
910 : feinerer 717 * R/resolve.R (resolveISOcode): Extracts the language from a ISO
911 :     language code.
912 :    
913 :     * R/textdoccol.R (TextDocCol): Refactored several parser arguments
914 :     into parserControl argument.
915 :    
916 :     * R/aobjects.R (TextDocument): Introduced the "Language" slot.
917 :    
918 : feinerer 713 2007-03-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
919 :    
920 : feinerer 715 * Work/tmDataSetup.R: The datasets acq and crude can now be
921 :     created on the fly.
922 :    
923 : feinerer 713 * R/stopwords.R: Introduced a function returning the stopwords for
924 :     a given language (English, German and French at the moment)
925 :    
926 :     * R/textdoccol.R (stemDoc): Stemming uses Rstem if available,
927 :     otherwise falls back to Snowball package.
928 :    
929 : feinerer 711 2007-01-30 Ingo Feinerer <h0125130@wu-wien.ac.at>
930 :    
931 :     * man/dissimilarity-methods.Rd: Make clear that any method offered
932 :     by "dists" from package "cba" can be used.
933 :    
934 : feinerer 708 2007-01-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
935 :    
936 : feinerer 710 * inst/doc/tm.Rnw: Fixed quotes-appearing-as-boxes-bug according
937 :     to Kurt's latex suggestion. Removed points and underscores in
938 :     variable names for consistent naming.
939 :    
940 : feinerer 708 * DESCRIPTION: Update to version 0.1-2.
941 :    
942 :     * man/TextRepository.Rd: Fixed bug in documentation.
943 :    
944 : feinerer 704 2007-01-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
945 :    
946 :     * DESCRIPTION: Update to version 0.1-1.
947 :    
948 : feinerer 702 2007-01-09 Ingo Feinerer <h0125130@wu-wien.ac.at>
949 :    
950 :     * R/textdoccol.R (stemDoc): Use Rstem::wordStem instead of
951 :     wordStem.
952 :    
953 : feinerer 698 2007-01-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
954 :    
955 :     * R/: Changes due to Kurt's review.
956 :    
957 : feinerer 694 2006-12-31 Ingo Feinerer <h0125130@wu-wien.ac.at>
958 :    
959 :     * R/: Implemented improvements based upon comments by David
960 :     Meyer.
961 :    
962 : feinerer 691 2006-12-17 Ingo Feinerer <h0125130@wu-wien.ac.at>
963 :    
964 :     * inst/doc/: Rewrote vignette.
965 :    
966 :     * man/: Improved documentation.
967 :    
968 : feinerer 690 2006-12-16 Ingo Feinerer <h0125130@wu-wien.ac.at>
969 :    
970 :     * man/: Updated documentation.
971 :    
972 :     * DESCRIPTION: Changed package name to "tm". Updated version to
973 :     0.1 for first CRAN release.
974 :    
975 :     * inst/texts/gmane.comp.lang.r.general.mbox: mbox Gmane R mailing
976 :     list archive example.
977 :    
978 :     * inst/texts/gmane.comp.lang.r.gr.rdf: RSS Gmane R mailing list
979 :     archive example.
980 :    
981 :     * R/preprocess.R (convert_mbox_eml): A simple e-mail converter
982 :     from (several mails per box) mbox format to (single mail per file)
983 :     eml format.
984 :    
985 : feinerer 689 2006-12-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
986 :    
987 :     * data/crude.rda: Rebuilt.
988 :    
989 :     * data/acq.rda: Rebuilt.
990 :    
991 :     * R/reader.R: Factored out reader and parser methods from
992 :     textdoccol.R.
993 :    
994 :     * R/source.R: Factored out Source methods from aobjects.R and
995 :     textdoccol.R.
996 :     (GmaneRSource): Encapsulates Gmane R mailing list archive RSS
997 :     feeds.
998 :    
999 :     * R/textdoccol.R (DirSource): Added support for recursive
1000 :     traversal of directories.
1001 :    
1002 :     2006-12-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
1003 :    
1004 :     * R/textdoccol.R ([[): Loads the document corpus automatically
1005 :     into memory upon access.
1006 :     (tm_transform, tm_filter): Removed several checks whether the
1007 :     document is already loaded ([[ ensures this now).
1008 :     (gmane_r_reader): Reader for RSS feeds as provided by the Gmane R
1009 :     mailing list archive.
1010 :    
1011 :     2006-12-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
1012 :    
1013 :     * R/aobjects.R (TextDocument): Is now a virtual class.
1014 :     (Source): Is now a virtual class.
1015 :    
1016 :     2006-12-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
1017 :    
1018 :     * R/textdoccol.R (c): Support for an arbitrary number of document
1019 :     collections.
1020 :    
1021 : feinerer 77 2006-11-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
1022 :    
1023 :     * R/textrepo.R: Updated TextRepository (constructor), append_elem,
1024 :     append_meta and remove_meta.
1025 :    
1026 :     * R/textdoccol.R: Removed modify_metadata method.
1027 :    
1028 :     * R/textrepo.R: Removed modify_metadata method.
1029 :    
1030 :     * R/textdoccol.R (remove_meta): Supports removal of document
1031 :     collection metadata and document (= in data frame) metadata.
1032 :    
1033 : feinerer 76 2006-11-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
1034 :    
1035 :     * R/textdoccol.R (append_doc): Bug fix for handling empty metadata.
1036 :    
1037 :     * data/crude.rda: Rebuilt.
1038 :    
1039 :     * data/acq.rda: Rebuilt.
1040 :    
1041 :     * inst/doc/textmin.Rnw: Updated vignette to reflect code changes.
1042 :    
1043 :     * R/textdoccol.R ([): Bug fix for subsetting a document
1044 :     collection's data frame.
1045 :    
1046 : feinerer 75 2006-11-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
1047 :    
1048 :     * R/textdoccol.R: Bug fixes in s_filter. Added full query support
1049 :     to s_filter.
1050 :    
1051 :     * R/textdoccol.R: Local text documents' metadata can now be copied
1052 :     to a document collection's data frame with prescind_meta.
1053 :    
1054 : feinerer 73 2006-11-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
1055 :    
1056 : feinerer 74 * R/: Text documents' slot metadata is now accessible in s_filter.
1057 :    
1058 : feinerer 73 * R/: Rewrote s_filter function (has still some restrictions).
1059 :    
1060 : feinerer 72 2006-11-20 Ingo Feinerer <h0125130@wu-wien.ac.at>
1061 :    
1062 :     * R/: Various fixes in handling metadata.
1063 :    
1064 :     * R/: Added update mechanism for text document collections.
1065 :    
1066 : feinerer 71 2006-11-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
1067 :    
1068 :     * R/: Merging of document collections now creates a binary tree
1069 :     for reconstructing merged document collections.
1070 :    
1071 :     * R/: Redesign of metadata for document collections.
1072 :    
1073 : feinerer 70 2006-11-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
1074 :    
1075 :     * R/: Messages now use \code{ngettext}.
1076 :    
1077 : feinerer 69 2006-11-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
1078 :    
1079 :     * R/: Added functions for modifying and removing metadata.
1080 :    
1081 : feinerer 67 2006-11-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
1082 :    
1083 :     * man/: Updated some documentation.
1084 :    
1085 :     * R/: Corrected some connection issues.
1086 :    
1087 :     * inst/doc: Worked on the vignette.
1088 :    
1089 : feinerer 65 2006-10-31 Ingo Feinerer <h0125130@wu-wien.ac.at>
1090 :    
1091 : feinerer 66 * inst/: Added texts and started vignette.
1092 :    
1093 : feinerer 65 * R/: Final changes based upon David's comments.
1094 :    
1095 : feinerer 64 2006-10-29 Ingo Feinerer <h0125130@wu-wien.ac.at>
1096 :    
1097 :     * NAMESPACE: Corrected exports (generic methods need exportMethods
1098 :     directives!).
1099 :    
1100 : feinerer 63 2006-10-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
1101 :    
1102 :     * R/: Modified the TextDocCol constructur and various parsers. It
1103 :     is now modular and supports various file formats via plugins (see
1104 :     the new "Source" class).
1105 :    
1106 : feinerer 62 2006-10-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
1107 :    
1108 :     * man/: Revised documentation after previous code changes.
1109 :    
1110 : feinerer 61 2006-10-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
1111 :    
1112 :     * R/: Remaining changes as discussed with David.
1113 :    
1114 : feinerer 60 2006-10-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
1115 :    
1116 :     * R/: Some changes as suggested by David. The rest will follow
1117 :     within the next days.
1118 :    
1119 : feinerer 59 2006-09-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
1120 :    
1121 :     * man/: Finished documentation.
1122 :    
1123 : feinerer 58 2006-09-25 Ingo Feinerer <h0125130@wu-wien.ac.at>
1124 :    
1125 :     * man/: Wrote some documentation.
1126 :    
1127 : feinerer 56 2006-09-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
1128 :    
1129 :     * R/: Further syntactic sugar in form of additional assignment and
1130 :     accessor methods.
1131 :    
1132 : feinerer 54 2006-09-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
1133 :    
1134 :     * R/: Syntactic sugar in form of "length", "show" and "summary"
1135 : feinerer 56 operators.
1136 : feinerer 54
1137 : feinerer 53 2006-08-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
1138 :    
1139 :     * R/: Diverse updates. Mainly on default operators ("[" or "c")
1140 :     and dissimilarities.
1141 :    
1142 : feinerer 52 2006-08-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
1143 :    
1144 :     * R/: Added similarity functions.
1145 :    
1146 :     * data/: Added english stopwords.
1147 :    
1148 : feinerer 50 2006-08-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
1149 :    
1150 : feinerer 51 * data/: Examples compiled for new features
1151 :    
1152 :     * R/: Changes due to new structure.
1153 :    
1154 : feinerer 50 * NAMESPACE: Corrected namespace to reflect new structure.
1155 :    
1156 :     * R/termdocmatrix.R: Adapted for new naming scheme.
1157 :    
1158 : feinerer 49 2006-08-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
1159 :    
1160 :     * R/textdoccol.R: Adapted code for new class structure. Wrote
1161 :     several transform and filter functions operating on text document
1162 :     collections (alias text document databases).
1163 :    
1164 :     * R/aobjects.R: Adapted class structure with inheritance,
1165 :     repositories and additional meta data. Loading files on demand is
1166 :     now possible.
1167 :    
1168 : feinerer 48 2006-07-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
1169 :    
1170 :     * R/: Some cosmetic cleanups.
1171 :    
1172 :     * inst/: Removed vignette on clustering. That and much more is now
1173 :     described in the JSS paper on text mining. Based upon that
1174 :     article an elaborated vignette will be incorporated in the future.
1175 :    
1176 : feinerer 42 2006-07-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
1177 :    
1178 :     * R/: Updated generic S4 methods to comply with signature changes
1179 :     in newer versions of R (> 2.3)
1180 :    
1181 : feinerer 41 2006-03-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
1182 :    
1183 :     * ext/R/importRIS.R: Automatic RIS import is now possible.
1184 :    
1185 : feinerer 40 2006-02-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
1186 :    
1187 :     * R/textdoccol.R: Added RIS HTML input format.
1188 :    
1189 : feinerer 39 2006-01-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
1190 :    
1191 :     * R/textdoccol.R: Removed bug that caused invalid text document
1192 :     collections when handling many input files.
1193 :    
1194 : feinerer 36 2006-01-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
1195 :    
1196 : feinerer 37 * R/textdoccol.R: Restructured and extended file import
1197 :     mechanism.
1198 :    
1199 : feinerer 36 * inst/doc/clustering.Rnw: Adapted vignette for use with
1200 :     ReutNews.rda
1201 :    
1202 :     * man/ReutNews.Rd: Documentation for ReutNews.rda
1203 :    
1204 :     * data/ReutNews.rda: A tiny Reuters21578 example data set.
1205 :    
1206 : feinerer 34 2005-12-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
1207 :    
1208 :     * inst/doc/clustering.Rnw: Wrote a small vignette to present the
1209 :     clustering facilities of this package.
1210 :    
1211 : feinerer 33 2005-12-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
1212 :    
1213 :     * R/aobjects.R: Changed package document structure to avoid class
1214 :     dependency problems.
1215 :    
1216 : feinerer 28 2005-12-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
1217 :    
1218 : feinerer 799 * Wrote a script for the ModLewis Split for the Reuters-21578 XML
1219 : feinerer 29 data set.
1220 :    
1221 : feinerer 799 * Finished documentation and reordered directory structure. Now "R
1222 : feinerer 28 CMD check textmin" works without errors.
1223 :    
1224 : feinerer 27 2005-12-04 Ingo Feinerer <h0125130@wu-wien.ac.at>
1225 :    
1226 :     * src/: Various splits can now be easily created for the
1227 :     Reuters21578 data set.
1228 :    
1229 : feinerer 26 2005-12-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
1230 :    
1231 : feinerer 799 * Updated documentation
1232 : feinerer 26
1233 : feinerer 25 2005-11-30 Ingo Feinerer <h0125130@wu-wien.ac.at>
1234 :    
1235 : feinerer 799 * Wrote R documentation for some classes and methods.
1236 : feinerer 25
1237 : feinerer 21 2005-11-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
1238 :    
1239 : feinerer 22 * R/textdoccol.R: Constructor of textdoccol allows import of CSV
1240 :     files. See the questionnaire data/Umfrage.csv for such an example.
1241 : feinerer 23 We are now able to import files in Reuters-21578 XML format.
1242 : feinerer 22
1243 : feinerer 799 * Changed class interfaces in various files. Weighting of the text
1244 : feinerer 21 matrix is now possible.
1245 :    
1246 : feinerer 20 2005-11-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
1247 :    
1248 :     * R/textdoccol.R: One can build term-document matrices if
1249 :     nessecary (with buildTDM(...)) and fill the field tdm from a text
1250 :     document collection with it.
1251 :    
1252 :     * R/textmatrix.R: Wrote S4 class for term-document matrices.
1253 :    
1254 : feinerer 19 2005-11-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
1255 :    
1256 :     * R/textdoccol.R: We now can read in a whole XML file with several
1257 :     news items.
1258 :    
1259 : feinerer 17 2005-11-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
1260 :    
1261 :     * R/textdoccol.R: Set up an S4 class for a collection of text
1262 :     documents. A first attempt to read in XML input (like the RCV1
1263 :     set) was made.
1264 :    
1265 :     * R/textdocument.R: Set up an S4 class for text documents. Wrote
1266 :     some accessor functions.
1267 :    
1268 :     * data/newsitem.xml: Added this XML file for testing purposes. It
1269 :     contains a single news item from the Reuters Corpus Volume 1
1270 :     (RCV1) XML set.
1271 :    
1272 : feinerer 16 2005-10-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
1273 :    
1274 :     * R/textmatrix.R (textmatrix): Removed the transpose of the original
1275 :     textmatrix as k-means clustering provided by R (kmeans) now works on
1276 :     this textmatrix. The result is a k-means text clustering with a
1277 :     similarity measure based upon word frequences.
1278 :    
1279 :     2005-10-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
1280 :    
1281 :     * R/textmatrix.R: Adapted the preprocessing code from the R
1282 :     package "lsa" written by Fridolin Wild to build a document text matrix.
1283 :    
1284 :     2005-10-02 Ingo Feinerer <h0125130@wu-wien.ac.at>
1285 :    
1286 : feinerer 799 * Set up the R Text Mining Package infrastructure.

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