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Revision 1175 - (view) (download)

1 : feinerer 1175 2012-01-31 Ingo Feinerer <feinerer@logic.at>
2 :    
3 :     * R/reader.R (readXML): Readers can now set the document language
4 :     themselves.
5 :    
6 : feinerer 1169 2012-01-14 Ingo Feinerer <feinerer@logic.at>
7 :    
8 :     * R/source.R (XMLSource, getElem.XMLSource): Simplifications as
9 :     proposed by Milan Bouchet-Valat.
10 :    
11 : feinerer 1168 2012-01-11 Ingo Feinerer <feinerer@logic.at>
12 :    
13 :     * R/matrix.R (termFreq): Fix processing of user provided
14 :     stopwords. Reported by Bettina GrĂ¼n.
15 :    
16 : feinerer 1167 2011-12-23 Ingo Feinerer <feinerer@logic.at>
17 :    
18 :     * R/matrix.R (termFreq): Fix invalid handling of
19 :     control$wordLengths[1]. Reported by Steven C. Bagley.
20 :    
21 : feinerer 1166 2011-12-17 Ingo Feinerer <feinerer@logic.at>
22 :    
23 :     * DESCRIPTION (Version): Prepare for CRAN Christmas release.
24 :    
25 : feinerer 1164 2011-12-12 Ingo Feinerer <feinerer@logic.at>
26 :    
27 :     * R/utils.R (map_IETF_Snowball): Map empty input to "porter".
28 :    
29 : feinerer 1161 2011-12-07 Ingo Feinerer <feinerer@logic.at>
30 :    
31 :     * R/transform.R (removePunctuation): Add option to preserve
32 :     intra-word dashes.
33 :    
34 : feinerer 1159 2011-12-06 Ingo Feinerer <feinerer@logic.at>
35 :    
36 :     * R/matrix.R (termFreq): Allow reordering of control option
37 :     processing.
38 :    
39 : feinerer 1151 2011-11-17 Ingo Feinerer <feinerer@logic.at>
40 :    
41 : feinerer 1155 * R/reader.R (readPDF): Use tools:::pdf_info() instead of external
42 :     pdfinfo tool.
43 :    
44 : feinerer 1153 * inst/stopwords/SMART.dat: Add SMART information retrieval system
45 :     stopwords (which are also used by the MC toolkit).
46 :    
47 : feinerer 1151 * R/matrix (termFreq): Allow local option \code{bounds$local} to
48 :     restrict how often a term may appear in each document (generalizes
49 :     \code{minDocFreq}). Similarly the local option \code{wordLenghts}
50 :     for word length bounds (generalizes \code{minWordLength}).
51 :    
52 :     * R/matrix.R (TermDocumentMatrix.VCorpus): New global option
53 :     \code{bounds$global} for restricting how often a term is allowed
54 :     to appear in different documents.
55 :    
56 :     * R/matrix.R (TermDocumentMatrix.VCorpus): Distinguish between
57 :     local options delegated internally to termFreq() and global
58 :     options which are processed by the term-document matrix
59 :     constructor itself.
60 :    
61 : feinerer 1150 2011-11-15 Ingo Feinerer <feinerer@logic.at>
62 :    
63 :     * man/getTokenizers.Rd: Document getTokenizers().
64 :    
65 :     * man/tokenizer.Rd: Document MC_tokenizer() and scan_tokenizer().
66 :    
67 : feinerer 1149 2011-11-04 Ingo Feinerer <feinerer@logic.at>
68 :    
69 :     * man/matrix.Rd: Document as.TermDocumentMatrix.term_frequency.
70 :    
71 : feinerer 1150 * man/combine.Rd: Document c.term_frequency().
72 : feinerer 1149
73 : feinerer 1147 2011-10-11 Ingo Feinerer <feinerer@logic.at>
74 :    
75 :     * R/meta.R (`meta<-.Corpus`): Assume that the replacement value
76 :     can be accessed via '[' and not '[['.
77 :    
78 : feinerer 1139 2011-08-24 Ingo Feinerer <feinerer@logic.at>
79 :    
80 :     * R/stopwords.R (stopwords): Raise an error if no stopwords are
81 :     available for requested language. Suggested by Derek M Jones.
82 :    
83 : feinerer 1136 2011-05-27 Ingo Feinerer <feinerer@logic.at>
84 :    
85 :     * R/weight.R (weightSMART): Implement Cosine and pivoted unique
86 :     normalization.
87 :    
88 : feinerer 1121 2011-02-17 Ingo Feinerer <feinerer@logic.at>
89 :    
90 :     * R/transform.R (stemDocument.PlainTextDocument): Use language
91 :     argument.
92 :    
93 : feinerer 1117 2011-02-04 Ingo Feinerer <feinerer@logic.at>
94 :    
95 :     * R/source.R: Store strings and connections instead of unevaluated
96 :     calls.
97 :    
98 : feinerer 1114 2010-11-26 Ingo Feinerer <feinerer@logic.at>
99 :    
100 :     * R/corpus.R (Corpus): Allow init and exit hooks for readers.
101 :    
102 : feinerer 1108 2010-10-22 Ingo Feinerer <feinerer@logic.at>
103 :    
104 :     * R/matrix.R (.TermDocumentMatrix): Make Weighting an attribute
105 :     (instead of a list element).
106 :    
107 : feinerer 1102 2010-10-16 Ingo Feinerer <feinerer@logic.at>
108 :    
109 :     * R/corpus.R (`[[.VCorpus`, `[[.PCorpus'): Access individual
110 : feinerer 1108 documents by names (fallback to IDs if names are not set).
111 : feinerer 1102
112 : feinerer 1095 2010-08-25 Ingo Feinerer <feinerer@logic.at>
113 :    
114 :     * R/corpus.R (c.Corpus): When concatenating corpora, the argument
115 :     \code{recursive} now determines whether existing corpus meta data
116 :     is used.
117 :    
118 : feinerer 1084 2010-08-06 Ingo Feinerer <feinerer@logic.at>
119 :    
120 :     * R/transform.R: Removed convert_UTF_8(). Use enc2utf8() instead.
121 :    
122 : feinerer 1080 2010-06-17 Ingo Feinerer <feinerer@logic.at>
123 :    
124 :     * R/matrix.R (TermDocumentMatrix): If a dictionary is given do not
125 :     remove terms not occurring in the corpus anymore.
126 :    
127 : feinerer 1075 2010-06-02 Ingo Feinerer <feinerer@logic.at>
128 :    
129 :     * R/plot.R (Zipf_plot, Heaps_plot): Plotting functions for Zipf's
130 :     and Heaps' law.
131 :    
132 : feinerer 1070 2010-05-18 Ingo Feinerer <feinerer@logic.at>
133 :    
134 :     * R/corpus.R (Corpus, PCorpus): Use element names as IDs if
135 :     provided by a source.
136 :    
137 : feinerer 1063 2010-04-09 Ingo Feinerer <feinerer@logic.at>
138 :    
139 :     * R/source.R (.Source): Provide document names.
140 :    
141 : feinerer 1062 2010-04-07 Ingo Feinerer <feinerer@logic.at>
142 :    
143 :     * R/meta.R (`content_or_meta`): Utility function.
144 :    
145 : feinerer 1061 2010-03-19 Ingo Feinerer <feinerer@logic.at>
146 :    
147 :     * R/reader.R (readReut21578XML, readReut21578XMLasPlain): Extract
148 :     TOPICS, LEWISSPLIT, CGISPLIT, and OLDID meta tags.
149 :    
150 : feinerer 1048 2010-03-03 Ingo Feinerer <feinerer@logic.at>
151 :    
152 : feinerer 1051 * R/weight.R (weightTfIdf): Added normalization option.
153 :    
154 : feinerer 1048 * man/tm_tag_score.Rd: Add General Inquirer example for sentiment
155 :     analysis.
156 :    
157 : feinerer 1046 2010-02-25 Ingo Feinerer <feinerer@logic.at>
158 :    
159 :     * R/score.R (tm_tag_score): Compute a score from the number of
160 :     tags matching in a document.
161 :    
162 : feinerer 1041 2010-02-18 Ingo Feinerer <feinerer@logic.at>
163 :    
164 :     * R/complete.R (stemCompletion): New completion heuristics.
165 :    
166 :     2010-02-17 Ingo Feinerer <feinerer@logic.at>
167 :    
168 :     * R/plot.R (plot.TermDocumentMatrix): Memory improvements.
169 :    
170 : feinerer 1040 2010-02-06 Ingo Feinerer <feinerer@logic.at>
171 :    
172 :     * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
173 :     setOldClass(c(..., "list")) works.
174 :    
175 : feinerer 1039 2010-01-22 Ingo Feinerer <feinerer@logic.at>
176 :    
177 :     * R/transform.R (stemDocument.character): In case input is a
178 :     simple character just delegate to the default Snowball stemmer.
179 :    
180 : feinerer 1038 2010-01-15 Ingo Feinerer <feinerer@logic.at>
181 :    
182 :     * R/reader.R (readReut21578XML, readRCV1): Extract more meta
183 :     data.
184 :    
185 : feinerer 1034 2010-01-12 Ingo Feinerer <feinerer@logic.at>
186 :    
187 :     * R/doc.R (`Content<-`): Be careful with names attribute.
188 :    
189 : stefan7th 1032 2010-01-07 Stefan Theussl <stefan.theussl@wu.ac.at>
190 :    
191 :     * R/source.R (DirSource): Improved implementation especially when
192 : feinerer 1042 handling many (> 1M) files.
193 : stefan7th 1032
194 : feinerer 1029 2009-12-22 Ingo Feinerer <feinerer@logic.at>
195 :    
196 :     * R/source.R (getElem.URISource): Use encoding argument.
197 :    
198 : feinerer 1025 2009-12-11 Ingo Feinerer <feinerer@logic.at>
199 :    
200 :     * R/doc.R (setOldClass): Register S3 document classes to be
201 :     recognized by S4 methods.
202 :    
203 : feinerer 1023 2009-11-25 Ingo Feinerer <feinerer@logic.at>
204 :    
205 :     * R/matrix.R (termFreq): Add option to remove punctuation
206 :     characters.
207 :    
208 : feinerer 1022 2009-11-19 Ingo Feinerer <feinerer@logic.at>
209 :    
210 :     * R/matrix.R (c.TermDocumentMatrix): Added combine method for
211 :     merging multiple term-document matrices.
212 :    
213 : feinerer 1020 2009-11-17 Ingo Feinerer <feinerer@logic.at>
214 :    
215 : feinerer 1021 * R/corpus.R (setOldClass): Register S3 corpus classes to be
216 :     recognized by S4 methods.
217 :    
218 : feinerer 1020 * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
219 :     that CRAN Mac OS X builds do not fail any longer.
220 :    
221 : feinerer 1019 2009-11-15 Ingo Feinerer <feinerer@logic.at>
222 :    
223 :     * R/matrix.R (tokenize): Use scan(..., what = "character") instead
224 :     of RWeka:AlphabeticTokenizer() as default.
225 :    
226 : feinerer 1018 2009-11-14 Ingo Feinerer <feinerer@logic.at>
227 :    
228 :     * R/transform.R (removeWords.PlainTextDocument): Fix bug which
229 :     caused words at the beginning or the end of a line not to be removed. Do
230 :     not delete whitespace anymore.
231 :    
232 : feinerer 1017 2009-11-12 Ingo Feinerer <feinerer@logic.at>
233 :    
234 :     * R/source.R (DirSource): Default to working directory if no path
235 :     is specified.
236 :    
237 :     2009-11-11 Ingo Feinerer <feinerer@logic.at>
238 :    
239 :     * R/source.R (DirSource): Stop on empty directories.
240 :    
241 : feinerer 1015 2009-11-07 Ingo Feinerer <feinerer@logic.at>
242 :    
243 :     * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
244 :     named documents.
245 :    
246 : feinerer 1013 2009-10-21 Ingo Feinerer <feinerer@logic.at>
247 :    
248 :     * R/transform.R (removeWords): Improve regular expressions.
249 :    
250 : feinerer 1011 2009-10-19 Ingo Feinerer <feinerer@logic.at>
251 :    
252 :     * R/meta.R (DublinCore): Allow lower case tags.
253 :    
254 : feinerer 1010 2009-10-09 Ingo Feinerer <feinerer@logic.at>
255 :    
256 :     * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
257 :     instead of x$children.
258 :    
259 : feinerer 1007 2009-09-15 Ingo Feinerer <feinerer@logic.at>
260 :    
261 :     * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
262 :    
263 : feinerer 993 2009-09-06 Ingo Feinerer <feinerer@logic.at>
264 :    
265 :     * R/: Use S3 instead of S4 class system.
266 :    
267 : feinerer 982 2009-08-11 Ingo Feinerer <feinerer@logic.at>
268 :    
269 :     * R/reader.R (readMail): Moved to tm.plugin.mail package.
270 :    
271 : feinerer 973 2009-07-04 Ingo Feinerer <feinerer@logic.at>
272 :    
273 :     * R/reader.R (readNewsgroup): Rename to readMail as newsgroup
274 :     postings are basically e-mails with some extra headers.
275 :    
276 : feinerer 972 2009-07-03 Ingo Feinerer <feinerer@logic.at>
277 :    
278 : feinerer 981 * R/transform.R: Move convertMboxEml, removeCitation,
279 :     removeMultipart, and removeSignature to the tm.plugin.mail package
280 :     since they are mainly utility functions (for handling e-mails) and
281 :     not very framework specific.
282 : feinerer 972
283 : feinerer 962 2009-06-28 Ingo Feinerer <feinerer@logic.at>
284 :    
285 :     * man/: Fix documentation.
286 :    
287 : feinerer 960 2009-06-26 Ingo Feinerer <feinerer@logic.at>
288 :    
289 :     * R/reader.R (readReut21578XMLasPlain): New reader which returns a
290 :     plain text document instead of an XML document for texts of the
291 :     Reuters-21578 dataset.
292 :    
293 :     * R/sparse.R: Removed since the slam package is now available on
294 :     CRAN.
295 :    
296 :     * DESCRIPTION (Depends): Add slam package.
297 :    
298 : feinerer 959 2009-06-17 Ingo Feinerer <feinerer@logic.at>
299 :    
300 :     * R/transform.R (stemDoc): Fix character(0) handling.
301 :    
302 : feinerer 957 2009-06-12 Ingo Feinerer <feinerer@logic.at>
303 :    
304 :     * R/doc.R (show): Pretty print.
305 :    
306 : feinerer 954 2009-05-27 Ingo Feinerer <feinerer@logic.at>
307 :    
308 :     * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
309 :     gracefully.
310 :    
311 : feinerer 946 2009-05-13 Ingo Feinerer <feinerer@logic.at>
312 :    
313 :     * R/corpus.R: Make corpus virtual. Implement corpus with standard
314 :     and permanent storage semantics.
315 :    
316 :     * DESCRIPTION: New major release. A *lot* of improvements.
317 :    
318 : feinerer 945 2009-05-04 Ingo Feinerer <feinerer@logic.at>
319 :    
320 :     * NAMESPACE: Export some simple_triplet_matrix functions.
321 :    
322 : feinerer 942 2009-04-28 Ingo Feinerer <feinerer@logic.at>
323 :    
324 :     * R/weight.R: Adapt tf-idf to new matrix format.
325 :    
326 : feinerer 941 2009-04-27 Ingo Feinerer <feinerer@logic.at>
327 :    
328 :     * R/matrix.R: Create two distinct classes for term-document and
329 :     document-term matrices.
330 :    
331 : feinerer 938 2009-04-26 Ingo Feinerer <feinerer@logic.at>
332 :    
333 : feinerer 939 * R/termdocmatrix.R: No longer use Matrix package. This reduces
334 :     package start-up time significantly.
335 : feinerer 938
336 : feinerer 930 2009-04-11 Ingo Feinerer <feinerer@logic.at>
337 :    
338 :     * inst/doc/tm.Rnw: Fix code/documentation mismatch.
339 :    
340 : feinerer 926 2009-04-04 Ingo Feinerer <feinerer@logic.at>
341 :    
342 :     * R/transform.R (tmReduce): Combine multiple maps into one
343 :     transformation.
344 :    
345 : feinerer 923 2009-04-03 Ingo Feinerer <feinerer@logic.at>
346 :    
347 : feinerer 924 * R/weight.R: Remove weightLogical since it does not return a
348 :     dgCMatrix.
349 :    
350 : feinerer 925 * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
351 :     or TermDocumentMatrix instead.
352 : feinerer 923
353 : feinerer 919 2009-03-28 Ingo Feinerer <feinerer@logic.at>
354 :    
355 :     * inst/doc/extensions.Rnw: Finished vignette.
356 :    
357 : feinerer 918 2009-03-27 Ingo Feinerer <feinerer@logic.at>
358 :    
359 :     * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
360 :     DocumentTermMatrix representations.
361 :    
362 : feinerer 912 2009-03-23 Ingo Feinerer <feinerer@logic.at>
363 :    
364 :     * R/reader.R (readXML): New reader for arbitrary XML files.
365 :    
366 : feinerer 909 2009-03-22 Ingo Feinerer <feinerer@logic.at>
367 :    
368 : feinerer 910 * R/source.R (CSVSource): Defunct (use DataframeSource instead).
369 : feinerer 911 (XMLSource): New XMLSource class for arbitrary XML files.
370 :     (Source): New slot Vectorized.
371 : feinerer 910
372 : feinerer 904 2009-03-21 Ingo Feinerer <feinerer@logic.at>
373 :    
374 : feinerer 939 * R/reader.R (readTabular): Experimental reader for tabular data
375 :     structures which can be customized via user-defined mappings.
376 : feinerer 908
377 : feinerer 905 * R/reader.R: Always use UTC time zone.
378 :    
379 : feinerer 904 * R/AAA.R (.onLoad): No longer try to start a MPI cluster.
380 :    
381 : feinerer 903 2009-03-20 Ingo Feinerer <feinerer@logic.at>
382 :    
383 :     * R/reader.R (readDOC): Options can be passed over to antiword.
384 :    
385 :     * R/reader.R (readPDF): Options can be passed over to pdfinfo and
386 :     pdftotext.
387 :    
388 : feinerer 895 2009-03-10 Ingo Feinerer <feinerer@logic.at>
389 :    
390 :     * R/source.R (DirSource): Add pattern and ignore.case arguments
391 :     which are internally passed over to list.files().
392 :    
393 : feinerer 893 2009-03-02 Ingo Feinerer <feinerer@logic.at>
394 :    
395 :     * inst/doc/tm.Rnw: Suppress pointless loading message.
396 :    
397 : feinerer 886 2009-01-29 Ingo Feinerer <feinerer@logic.at>
398 :    
399 :     * DESCRIPTION: Speed up package loading (via moving packages not
400 :     strictly necessary for normal operation to Suggests instead of
401 :     Depends).
402 :    
403 : feinerer 882 2009-01-08 Ingo Feinerer <feinerer@logic.at>
404 :    
405 :     * R/reader.R (readNewsgroup): The date format is now configurable.
406 :    
407 : feinerer 881 2008-12-20 Ingo Feinerer <feinerer@logic.at>
408 :    
409 :     * R/preprocess.R (convertMboxEml): Fix off-by-one error.
410 :    
411 : feinerer 877 2008-12-16 Ingo Feinerer <feinerer@logic.at>
412 :    
413 :     * R/termdocmatrix.R (TermDocMatrix): Sort row indices.
414 :    
415 : feinerer 875 2008-12-06 Ingo Feinerer <feinerer@logic.at>
416 :    
417 : feinerer 876 * R/source.R (DataframeSource): New source class for data frames.
418 :    
419 : feinerer 875 * R/source.R: Fixed non-standard call evaluation.
420 :    
421 : feinerer 874 2008-11-29 Ingo Feinerer <feinerer@logic.at>
422 :    
423 :     * R/source.R (URISource): New source class for a single document.
424 :    
425 : feinerer 873 2008-11-27 Ingo Feinerer <feinerer@logic.at>
426 :    
427 :     * R/source.R: Refactoring.
428 :    
429 : feinerer 872 2008-11-25 Ingo Feinerer <feinerer@logic.at>
430 :    
431 :     * R/AAA.R (.onLoad, .Last): Use tryCatch() to handle misconfigured
432 :     Rmpi installations more gracefully.
433 :    
434 : feinerer 869 2008-11-08 Ingo Feinerer <feinerer@logic.at>
435 :    
436 :     * R/source.R (Source): Add Length slot.
437 :    
438 :     2008-11-06 Ingo Feinerer <feinerer@logic.at>
439 :    
440 :     * R/AAA.R: Unify duplicated .onLoad function.
441 :    
442 : feinerer 868 2008-11-03 Ingo Feinerer <feinerer@logic.at>
443 :    
444 :     * DESCRIPTION (Suggests): Added Rmpi.
445 :    
446 : feinerer 866 2008-11-02 Ingo Feinerer <feinerer@logic.at>
447 :    
448 :     * R/source.R (getElem): Fix 'no visible binding' warning.
449 :    
450 :     * man/WeightFunction.Rd: Fix signature.
451 :    
452 : feinerer 865 2008-08-03 Ingo Feinerer <feinerer@logic.at>
453 :    
454 :     * R/weight.R: Introduce name abbreviations for weighting functions.
455 :    
456 : feinerer 861 2008-07-24 Ingo Feinerer <feinerer@logic.at>
457 :    
458 :     * R/AAA.R (.onLoad, .Last): Start and stop MPI cluster.
459 :    
460 :     * R/cluster.R: Provide convenience functions for using a MPI
461 :     cluster.
462 :    
463 :     * R/termdocmatrix.R (TermDocMatrix): Use MPI cluster if
464 :     available.
465 :    
466 :     * R/textdoccol.R (tmIndex, tmFilter, tmMap): Use MPI cluster if
467 :     available.
468 :    
469 : feinerer 860 2008-07-17 Ingo Feinerer <feinerer@logic.at>
470 :    
471 :     * R/textdoccol.R (lapply): Removed debug print out.
472 :    
473 : feinerer 856 2008-06-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
474 :    
475 :     * R/reader.R (readRCV1): Improved meta data extraction from
476 :     Reuters Corpus Volume 1 documents.
477 :    
478 : feinerer 855 2008-05-25 Ingo Feinerer <h0125130@wu-wien.ac.at>
479 :    
480 :     * R/transform.R: Ensure that all mappings preserve multiline
481 :     structures.
482 :    
483 : feinerer 854 2008-05-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
484 :    
485 :     * R/filter.R: Every filter has now an attribute indicating whether
486 :     it sould be applied to document level (doclevel).
487 :    
488 :     * R/textdoccol.R (tmFilter): Set searchFullText as new default
489 :     filter.
490 :    
491 : feinerer 838 2008-04-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
492 :    
493 :     * R/transform.R (replacePatterns): Replaced removeWords by
494 :     replacePatterns. Suggested by Christian Buchta.
495 :    
496 :     * R/textdoccol.R (inspect): Improved formatting.
497 :    
498 : feinerer 836 2008-04-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
499 :    
500 :     * inst/CITATION: Updated JSS article information.
501 :    
502 :     * R/textdoccol.R (setAs): Added coerce method from list to
503 :     corpus.
504 :    
505 :     * R/meta.R (meta): Improved meta data handling.
506 :    
507 : feinerer 833 2008-03-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
508 :    
509 :     * R/textdoccol.R (materialize, tmMap): Improvements suggested by
510 :     Christian Buchta.
511 :    
512 :     * inst/CITATION: Added template to include JSS article reference.
513 :    
514 : feinerer 831 2008-03-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
515 :    
516 :     * R/textdoccol.R (tmMap): Introduced lazy mapping.
517 :    
518 : feinerer 832 * R/source.R: Added VectorSource.
519 :    
520 : feinerer 825 2008-02-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
521 :    
522 :     * man/: Language codes should be in ISO 639-1 format.
523 :    
524 : feinerer 826 * R/textdoccol.R (asPlain): Preserve local meta data.
525 :    
526 : feinerer 819 2008-01-31 Ingo Feinerer <h0125130@wu-wien.ac.at>
527 :    
528 :     * R/textdoccol.R (writeCorpus): Function for writing a corpus
529 :     containing plain text documents to disk.
530 :    
531 : feinerer 817 2008-01-30 Ingo Feinerer <h0125130@wu-wien.ac.at>
532 :    
533 :     * R/termdocmatrix.R (TermDocMatrix): Ensure that dimnames are
534 :     always set correctly.
535 :    
536 :     * R/textdoccol.R: Set load = TRUE as default for load on demand
537 :     since in most cases this is the wanted behaviour.
538 :    
539 : feinerer 816 2008-01-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
540 :    
541 :     * R/: Renamed TextDocCol to Corpus, and Corpus to Content.
542 :    
543 :     * DESCRIPTION: Updated Version to 0.3 due to core name changes.
544 :    
545 : feinerer 813 2008-01-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
546 :    
547 :     * R/meta.R (meta): New function for consistent access to meta data
548 :     of document collections, repositories, and texts.
549 :    
550 : feinerer 810 2008-01-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
551 :    
552 :     * R/: Better support for encodings.
553 :    
554 : feinerer 808 2008-01-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
555 :    
556 :     * R/textdoccol.R (TextDocCol): Fixed bug regarding default reader
557 :     selection when no reader argument is given.
558 :    
559 : feinerer 807 2008-01-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
560 :    
561 :     * R/source.R (CSVSource): Now uses read.csv instead of scan
562 :     internally.
563 :    
564 : feinerer 806 2008-01-02 Ingo Feinerer <h0125130@wu-wien.ac.at>
565 :    
566 :     * R/reader.R (getReaders): Returns available reader functions.
567 :    
568 :     * R/termdocmatrix.R (TermDocMatrix): Set new modular constructor
569 :     as default.
570 :    
571 : feinerer 802 2007-12-02 Ingo Feinerer <h0125130@wu-wien.ac.at>
572 :    
573 :     * R/stopwords.R (stopwords): Shortened code, removed codetools
574 :     variable warnings.
575 :    
576 :     * man/: Documentation for showMeta, added an example for tmMap.
577 :    
578 :     * inst/doc/tm.Rnw: Updated vignette, comments on MS word reader,
579 :     some minor typos fixed.
580 :    
581 : feinerer 801 2007-12-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
582 :    
583 :     * R/aobjects.R (showMeta): Added method for pretty printing a
584 :     text document's meta data.
585 :    
586 : feinerer 799 2007-11-29 Ingo Feinerer <h0125130@wu-wien.ac.at>
587 :    
588 :     * R/textdoccol.R (TextDocCol): Better handling of empty
589 :     arguments.
590 :    
591 :     * NAMESPACE: Exported readDOC.
592 :    
593 : feinerer 800 * man/completeStems.Rd: Added an example.
594 :    
595 : feinerer 797 2007-11-18 Ingo Feinerer <h0125130@wu-wien.ac.at>
596 : feinerer 796
597 : feinerer 797 * R/stopwords.R (stopwords): Look up .dat files at every
598 :     call. Allows users to modify stopword .dat files interactively.
599 :    
600 :     2007-11-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
601 :    
602 : feinerer 796 * R/termdocmatrix.R (termFreq): Correct processing of empty
603 :     documents.
604 :    
605 : feinerer 795 2007-10-27 Ingo Feinerer <h0125130@wu-wien.ac.at>
606 :    
607 :     * man/: Updated documentation.
608 :    
609 : feinerer 790 2007-10-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
610 :    
611 : feinerer 793 * R/complete.R (completeStems): Completes (heuristically) word
612 :     stems.
613 :    
614 : feinerer 790 * R/termdocmatrix.R (TermDocMatrix2): New modular
615 :     constructor.
616 :    
617 :     * NAMESPACE: Exported termFreq.
618 :    
619 : feinerer 789 2007-10-16 Ingo Feinerer <h0125130@wu-wien.ac.at>
620 :    
621 :     * R/reader.R (readDOC): Added MS Word reader (using antiword).
622 :    
623 : feinerer 788 2007-10-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
624 :    
625 :     * R/weight.R: Weighting functions for TermDocMatrix.
626 :    
627 : feinerer 785 2007-10-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
628 :    
629 :     * R/termdocmatrix.R (dimnames, colnames, rownames): Wrapper
630 :     functions for accessing dimension, column, and row names.
631 :    
632 :     * R/plot.R (plot.TermDocMatrix): Plot correlations between terms.
633 :    
634 : feinerer 779 2007-09-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
635 :    
636 :     * man/removePunctuation.Rd: Added documentation. Function also exported to NAMESPACE.
637 :    
638 : feinerer 777 2007-08-28 Ingo Feinerer <h0125130@wu-wien.ac.at>
639 :    
640 :     * R/fungen.R: Use S4 class for function generators instead of S3 attributes.
641 :    
642 : feinerer 776 2007-07-29 Ingo Feinerer <h0125130@wu-wien.ac.at>
643 :    
644 :     * R/reader.R (readPDF): Removed manual checks for pdftotext and
645 :     pdfinfo. The system call gives a warning anyway.
646 :    
647 : feinerer 775 2007-07-28 Ingo Feinerer <h0125130@wu-wien.ac.at>
648 :    
649 :     * R/textdoccol.R (asPlain): Conversion from
650 :     StructuredTextDocuments to PlainTextDocuments.
651 :    
652 : feinerer 773 2007-07-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
653 :    
654 : feinerer 774 * R/termdocmatrix.R: Added convenience methods ("[", nrow, ncol)
655 :     for accessing term-document matrices.
656 :    
657 : feinerer 773 * inst/doc/tm.Rnw: readPDF is only called if pdftotext and pdfinfo
658 :     are installed.
659 :    
660 : feinerer 770 2007-07-17 Ingo Feinerer <h0125130@wu-wien.ac.at>
661 :    
662 :     * R/termdocmatrix.R (TermDocMatrix): Improved efficiency. Kudos to
663 :     Christian Buchta.
664 :    
665 : feinerer 768 2007-07-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
666 :    
667 :     * inst/doc/tm.Rnw: Update vignette (readPDF, readHTML, preprocessReut21578XML).
668 :    
669 : feinerer 766 2007-07-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
670 :    
671 : feinerer 767 * R/reader.R (readHTML): Added very simple HTML reader to obtain StructuredTextDocuments.
672 :    
673 : feinerer 766 * R/reader.R (readPDF): Added PDF reader.
674 :    
675 : feinerer 765 2007-07-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
676 :    
677 :     * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
678 :    
679 :     * inst/stopwords/english.dat: Added the term "yes" to stopwords.
680 :    
681 :     * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
682 :    
683 :     * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
684 :    
685 : feinerer 763 2007-07-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
686 :    
687 :     * R/distmeasure.R (dissimilarity): Replaced dists call from
688 :     package cba by new dist call from package proxy.
689 :    
690 : feinerer 761 2007-07-10 Ingo Feinerer <h0125130@wu-wien.ac.at>
691 :    
692 :     * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
693 :    
694 : feinerer 760 2007-06-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
695 :    
696 :     * R/termdocmatrix.R: require() uses the quietly option to suppress
697 :     loading messages.
698 :    
699 : feinerer 758 2007-06-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
700 :    
701 :     * R/dictionary.R: Added dictionary support.
702 :    
703 : feinerer 757 2007-06-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
704 :    
705 :     * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
706 :     documents. This simplifies some functions, e.g., asPlain.
707 :    
708 : feinerer 756 2007-06-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
709 :    
710 :     * inst/doc/tm.Rnw: Fixed some typos in vignette.
711 :    
712 : feinerer 755 2007-06-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
713 :    
714 :     * R/textdoccol.R (replaceWords): Added method to replace a set of
715 :     words by a single word. Useful for synonyms.
716 :    
717 : feinerer 754 2007-05-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
718 :    
719 :     * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
720 :    
721 : feinerer 752 2007-05-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
722 :    
723 :     * R/termdocmatrix.R (textvector): Small fix for dealing with empty
724 :     vectors. Thanks to Ariel Maguyon for his error report.
725 :     (removeSparseTerms): New function to remove columns from a
726 :     term-document matrix exceeding a sparse factor.
727 :    
728 : feinerer 751 2007-05-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
729 :    
730 :     * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
731 :    
732 : feinerer 750 2007-05-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
733 :    
734 :     * man/sFilter.Rd: Corrected documentation on statement format (use
735 :     '==' instead of '=').
736 :    
737 : feinerer 749 2007-05-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
738 :    
739 :     * R/aobjects.R (StructuredTextDocument): Inherits from
740 :     TextDocument.
741 :    
742 : feinerer 748 2007-05-04 Ingo Feinerer <h0125130@wu-wien.ac.at>
743 :    
744 :     * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
745 :     on sparse matrices as proposed by Martin Maechler.
746 :    
747 : feinerer 747 2007-04-27 Ingo Feinerer <h0125130@wu-wien.ac.at>
748 :    
749 :     * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
750 :     \pkg{filehash} version makes them deprecated.
751 :    
752 : feinerer 744 2007-04-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
753 :    
754 :     * R/termdocmatrix.R (textvector): Stemming is now performed before
755 :     erasing stopwords.
756 :     (weightMatrix): Adapted to handle sparse matrices.
757 :     (TermDocMatrix): Sparse matrix is now efficiently built by
758 :     direct stepwise insertion of row values into it.
759 :    
760 : feinerer 741 2007-04-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
761 :    
762 :     * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
763 :     due to ongoing problems. For our purposes the latter is as useful
764 :     as the replaced package.
765 :    
766 : feinerer 738 2007-04-20 Ingo Feinerer <h0125130@wu-wien.ac.at>
767 :    
768 :     * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.
769 :    
770 :     * man/TermDocMatrix.Rd: Remove deprecated \code{language} argument.
771 :    
772 : feinerer 737 2007-04-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
773 :    
774 :     * R/resolve.R (resolveISOCode): Added ISO 639-1 codes for
775 :     languages with available stopwords.
776 :    
777 : feinerer 736 2007-04-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
778 :    
779 :     * inst/doc/tm.Rnw: Minor corrections in the vignette.
780 :    
781 : feinerer 731 2007-04-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
782 :    
783 : feinerer 732 * DESCRIPTION: Update to version 0.2, since a lot of new features
784 :     have been integrated.
785 : feinerer 731
786 : feinerer 732 * inst/stopwords: Updated existing stopwords and added stopwords
787 :     for various other languages.
788 :    
789 : feinerer 729 2007-04-10 Ingo Feinerer <h0125130@wu-wien.ac.at>
790 :    
791 : feinerer 730 * man/: Updated documentation.
792 :    
793 : feinerer 729 * Work/testDb.R: Script to test database stuff.
794 :    
795 :     * R/: Fixed various database related bugs. Seems to be rather
796 :     useable now, i.e., consider as alpha status for now.
797 :    
798 : feinerer 727 2007-04-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
799 :    
800 :     * R/: Fixed some bugs related to database support.
801 :    
802 : feinerer 726 2007-04-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
803 :    
804 :     * man/: Added a lot of examples to the manuals.
805 :    
806 : feinerer 725 2007-04-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
807 :    
808 :     * man/: Updated parts of the documentation.
809 :    
810 :     * R/textdoccol.R (asPlain): Added conversion from newsgroup
811 :     documents to plain text documents.
812 :    
813 : feinerer 722 2007-04-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
814 :    
815 : feinerer 724 * R/textdoccol.R: Finished experimental database support. Not yet
816 :     intensively tested.
817 :    
818 : feinerer 723 * R/source.R: Now each source has a default reader.
819 :    
820 : feinerer 722 * R/reader.R: \code{FunctionGenerator} is now an attribute, not a
821 :     class anymore.
822 :    
823 :     * R/plaintextdoc.R: Custom show method for plain text documents.
824 :    
825 :     * R/aobjects.R: Added a class for structured text documents.
826 :    
827 :     * R/reader.R: Replaced remaining \code{parser} occurrences with
828 :     \code{reader}.
829 :    
830 :     * R/textdoccol.R (summary): Indent tags.
831 :    
832 : feinerer 725 * R/textdoccol.R (removePunctuation): Transform method to remove
833 : feinerer 722 punctuation marks.
834 :    
835 : feinerer 721 2007-03-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
836 :    
837 :     * R/textdoccol.R (sFilter): Simplified sFilter significantly by
838 :     using prescindMeta().
839 :    
840 : feinerer 719 2007-03-18 Ingo Feinerer <h0125130@wu-wien.ac.at>
841 :    
842 :     * R/textdoccol.R: Improved database support.
843 :    
844 : feinerer 717 2007-03-16 Ingo Feinerer <h0125130@wu-wien.ac.at>
845 :    
846 : feinerer 718 * R/termdocmatrix.R (TermDocMatrix): Uses sparse matrices.
847 :    
848 : feinerer 717 * R/resolve.R (resolveISOcode): Extracts the language from a ISO
849 :     language code.
850 :    
851 :     * R/textdoccol.R (TextDocCol): Refactored several parser arguments
852 :     into parserControl argument.
853 :    
854 :     * R/aobjects.R (TextDocument): Introduced the "Language" slot.
855 :    
856 : feinerer 713 2007-03-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
857 :    
858 : feinerer 715 * Work/tmDataSetup.R: The datasets acq and crude can now be
859 :     created on the fly.
860 :    
861 : feinerer 713 * R/stopwords.R: Introduced a function returning the stopwords for
862 :     a given language (English, German and French at the moment)
863 :    
864 :     * R/textdoccol.R (stemDoc): Stemming uses Rstem if available,
865 :     otherwise falls back to Snowball package.
866 :    
867 : feinerer 711 2007-01-30 Ingo Feinerer <h0125130@wu-wien.ac.at>
868 :    
869 :     * man/dissimilarity-methods.Rd: Make clear that any method offered
870 :     by "dists" from package "cba" can be used.
871 :    
872 : feinerer 708 2007-01-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
873 :    
874 : feinerer 710 * inst/doc/tm.Rnw: Fixed quotes-appearing-as-boxes-bug according
875 :     to Kurt's latex suggestion. Removed points and underscores in
876 :     variable names for consistent naming.
877 :    
878 : feinerer 708 * DESCRIPTION: Update to version 0.1-2.
879 :    
880 :     * man/TextRepository.Rd: Fixed bug in documentation.
881 :    
882 : feinerer 704 2007-01-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
883 :    
884 :     * DESCRIPTION: Update to version 0.1-1.
885 :    
886 : feinerer 702 2007-01-09 Ingo Feinerer <h0125130@wu-wien.ac.at>
887 :    
888 :     * R/textdoccol.R (stemDoc): Use Rstem::wordStem instead of
889 :     wordStem.
890 :    
891 : feinerer 698 2007-01-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
892 :    
893 :     * R/: Changes due to Kurt's review.
894 :    
895 : feinerer 694 2006-12-31 Ingo Feinerer <h0125130@wu-wien.ac.at>
896 :    
897 :     * R/: Implemented improvements based upon comments by David
898 :     Meyer.
899 :    
900 : feinerer 691 2006-12-17 Ingo Feinerer <h0125130@wu-wien.ac.at>
901 :    
902 :     * inst/doc/: Rewrote vignette.
903 :    
904 :     * man/: Improved documentation.
905 :    
906 : feinerer 690 2006-12-16 Ingo Feinerer <h0125130@wu-wien.ac.at>
907 :    
908 :     * man/: Updated documentation.
909 :    
910 :     * DESCRIPTION: Changed package name to "tm". Updated version to
911 :     0.1 for first CRAN release.
912 :    
913 :     * inst/texts/gmane.comp.lang.r.general.mbox: mbox Gmane R mailing
914 :     list archive example.
915 :    
916 :     * inst/texts/gmane.comp.lang.r.gr.rdf: RSS Gmane R mailing list
917 :     archive example.
918 :    
919 :     * R/preprocess.R (convert_mbox_eml): A simple e-mail converter
920 :     from (several mails per box) mbox format to (single mail per file)
921 :     eml format.
922 :    
923 : feinerer 689 2006-12-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
924 :    
925 :     * data/crude.rda: Rebuilt.
926 :    
927 :     * data/acq.rda: Rebuilt.
928 :    
929 :     * R/reader.R: Factored out reader and parser methods from
930 :     textdoccol.R.
931 :    
932 :     * R/source.R: Factored out Source methods from aobjects.R and
933 :     textdoccol.R.
934 :     (GmaneRSource): Encapsulates Gmane R mailing list archive RSS
935 :     feeds.
936 :    
937 :     * R/textdoccol.R (DirSource): Added support for recursive
938 :     traversal of directories.
939 :    
940 :     2006-12-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
941 :    
942 :     * R/textdoccol.R ([[): Loads the document corpus automatically
943 :     into memory upon access.
944 :     (tm_transform, tm_filter): Removed several checks whether the
945 :     document is already loaded ([[ ensures this now).
946 :     (gmane_r_reader): Reader for RSS feeds as provided by the Gmane R
947 :     mailing list archive.
948 :    
949 :     2006-12-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
950 :    
951 :     * R/aobjects.R (TextDocument): Is now a virtual class.
952 :     (Source): Is now a virtual class.
953 :    
954 :     2006-12-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
955 :    
956 :     * R/textdoccol.R (c): Support for an arbitrary number of document
957 :     collections.
958 :    
959 : feinerer 77 2006-11-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
960 :    
961 :     * R/textrepo.R: Updated TextRepository (constructor), append_elem,
962 :     append_meta and remove_meta.
963 :    
964 :     * R/textdoccol.R: Removed modify_metadata method.
965 :    
966 :     * R/textrepo.R: Removed modify_metadata method.
967 :    
968 :     * R/textdoccol.R (remove_meta): Supports removal of document
969 :     collection metadata and document (= in data frame) metadata.
970 :    
971 : feinerer 76 2006-11-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
972 :    
973 :     * R/textdoccol.R (append_doc): Bug fix for handling empty metadata.
974 :    
975 :     * data/crude.rda: Rebuilt.
976 :    
977 :     * data/acq.rda: Rebuilt.
978 :    
979 :     * inst/doc/textmin.Rnw: Updated vignette to reflect code changes.
980 :    
981 :     * R/textdoccol.R ([): Bug fix for subsetting a document
982 :     collection's data frame.
983 :    
984 : feinerer 75 2006-11-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
985 :    
986 :     * R/textdoccol.R: Bug fixes in s_filter. Added full query support
987 :     to s_filter.
988 :    
989 :     * R/textdoccol.R: Local text documents' metadata can now be copied
990 :     to a document collection's data frame with prescind_meta.
991 :    
992 : feinerer 73 2006-11-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
993 :    
994 : feinerer 74 * R/: Text documents' slot metadata is now accessible in s_filter.
995 :    
996 : feinerer 73 * R/: Rewrote s_filter function (has still some restrictions).
997 :    
998 : feinerer 72 2006-11-20 Ingo Feinerer <h0125130@wu-wien.ac.at>
999 :    
1000 :     * R/: Various fixes in handling metadata.
1001 :    
1002 :     * R/: Added update mechanism for text document collections.
1003 :    
1004 : feinerer 71 2006-11-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
1005 :    
1006 :     * R/: Merging of document collections now creates a binary tree
1007 :     for reconstructing merged document collections.
1008 :    
1009 :     * R/: Redesign of metadata for document collections.
1010 :    
1011 : feinerer 70 2006-11-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
1012 :    
1013 :     * R/: Messages now use \code{ngettext}.
1014 :    
1015 : feinerer 69 2006-11-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
1016 :    
1017 :     * R/: Added functions for modifying and removing metadata.
1018 :    
1019 : feinerer 67 2006-11-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
1020 :    
1021 :     * man/: Updated some documentation.
1022 :    
1023 :     * R/: Corrected some connection issues.
1024 :    
1025 :     * inst/doc: Worked on the vignette.
1026 :    
1027 : feinerer 65 2006-10-31 Ingo Feinerer <h0125130@wu-wien.ac.at>
1028 :    
1029 : feinerer 66 * inst/: Added texts and started vignette.
1030 :    
1031 : feinerer 65 * R/: Final changes based upon David's comments.
1032 :    
1033 : feinerer 64 2006-10-29 Ingo Feinerer <h0125130@wu-wien.ac.at>
1034 :    
1035 :     * NAMESPACE: Corrected exports (generic methods need exportMethods
1036 :     directives!).
1037 :    
1038 : feinerer 63 2006-10-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
1039 :    
1040 :     * R/: Modified the TextDocCol constructur and various parsers. It
1041 :     is now modular and supports various file formats via plugins (see
1042 :     the new "Source" class).
1043 :    
1044 : feinerer 62 2006-10-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
1045 :    
1046 :     * man/: Revised documentation after previous code changes.
1047 :    
1048 : feinerer 61 2006-10-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
1049 :    
1050 :     * R/: Remaining changes as discussed with David.
1051 :    
1052 : feinerer 60 2006-10-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
1053 :    
1054 :     * R/: Some changes as suggested by David. The rest will follow
1055 :     within the next days.
1056 :    
1057 : feinerer 59 2006-09-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
1058 :    
1059 :     * man/: Finished documentation.
1060 :    
1061 : feinerer 58 2006-09-25 Ingo Feinerer <h0125130@wu-wien.ac.at>
1062 :    
1063 :     * man/: Wrote some documentation.
1064 :    
1065 : feinerer 56 2006-09-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
1066 :    
1067 :     * R/: Further syntactic sugar in form of additional assignment and
1068 :     accessor methods.
1069 :    
1070 : feinerer 54 2006-09-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
1071 :    
1072 :     * R/: Syntactic sugar in form of "length", "show" and "summary"
1073 : feinerer 56 operators.
1074 : feinerer 54
1075 : feinerer 53 2006-08-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
1076 :    
1077 :     * R/: Diverse updates. Mainly on default operators ("[" or "c")
1078 :     and dissimilarities.
1079 :    
1080 : feinerer 52 2006-08-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
1081 :    
1082 :     * R/: Added similarity functions.
1083 :    
1084 :     * data/: Added english stopwords.
1085 :    
1086 : feinerer 50 2006-08-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
1087 :    
1088 : feinerer 51 * data/: Examples compiled for new features
1089 :    
1090 :     * R/: Changes due to new structure.
1091 :    
1092 : feinerer 50 * NAMESPACE: Corrected namespace to reflect new structure.
1093 :    
1094 :     * R/termdocmatrix.R: Adapted for new naming scheme.
1095 :    
1096 : feinerer 49 2006-08-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
1097 :    
1098 :     * R/textdoccol.R: Adapted code for new class structure. Wrote
1099 :     several transform and filter functions operating on text document
1100 :     collections (alias text document databases).
1101 :    
1102 :     * R/aobjects.R: Adapted class structure with inheritance,
1103 :     repositories and additional meta data. Loading files on demand is
1104 :     now possible.
1105 :    
1106 : feinerer 48 2006-07-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
1107 :    
1108 :     * R/: Some cosmetic cleanups.
1109 :    
1110 :     * inst/: Removed vignette on clustering. That and much more is now
1111 :     described in the JSS paper on text mining. Based upon that
1112 :     article an elaborated vignette will be incorporated in the future.
1113 :    
1114 : feinerer 42 2006-07-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
1115 :    
1116 :     * R/: Updated generic S4 methods to comply with signature changes
1117 :     in newer versions of R (> 2.3)
1118 :    
1119 : feinerer 41 2006-03-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
1120 :    
1121 :     * ext/R/importRIS.R: Automatic RIS import is now possible.
1122 :    
1123 : feinerer 40 2006-02-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
1124 :    
1125 :     * R/textdoccol.R: Added RIS HTML input format.
1126 :    
1127 : feinerer 39 2006-01-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
1128 :    
1129 :     * R/textdoccol.R: Removed bug that caused invalid text document
1130 :     collections when handling many input files.
1131 :    
1132 : feinerer 36 2006-01-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
1133 :    
1134 : feinerer 37 * R/textdoccol.R: Restructured and extended file import
1135 :     mechanism.
1136 :    
1137 : feinerer 36 * inst/doc/clustering.Rnw: Adapted vignette for use with
1138 :     ReutNews.rda
1139 :    
1140 :     * man/ReutNews.Rd: Documentation for ReutNews.rda
1141 :    
1142 :     * data/ReutNews.rda: A tiny Reuters21578 example data set.
1143 :    
1144 : feinerer 34 2005-12-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
1145 :    
1146 :     * inst/doc/clustering.Rnw: Wrote a small vignette to present the
1147 :     clustering facilities of this package.
1148 :    
1149 : feinerer 33 2005-12-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
1150 :    
1151 :     * R/aobjects.R: Changed package document structure to avoid class
1152 :     dependency problems.
1153 :    
1154 : feinerer 28 2005-12-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
1155 :    
1156 : feinerer 799 * Wrote a script for the ModLewis Split for the Reuters-21578 XML
1157 : feinerer 29 data set.
1158 :    
1159 : feinerer 799 * Finished documentation and reordered directory structure. Now "R
1160 : feinerer 28 CMD check textmin" works without errors.
1161 :    
1162 : feinerer 27 2005-12-04 Ingo Feinerer <h0125130@wu-wien.ac.at>
1163 :    
1164 :     * src/: Various splits can now be easily created for the
1165 :     Reuters21578 data set.
1166 :    
1167 : feinerer 26 2005-12-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
1168 :    
1169 : feinerer 799 * Updated documentation
1170 : feinerer 26
1171 : feinerer 25 2005-11-30 Ingo Feinerer <h0125130@wu-wien.ac.at>
1172 :    
1173 : feinerer 799 * Wrote R documentation for some classes and methods.
1174 : feinerer 25
1175 : feinerer 21 2005-11-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
1176 :    
1177 : feinerer 22 * R/textdoccol.R: Constructor of textdoccol allows import of CSV
1178 :     files. See the questionnaire data/Umfrage.csv for such an example.
1179 : feinerer 23 We are now able to import files in Reuters-21578 XML format.
1180 : feinerer 22
1181 : feinerer 799 * Changed class interfaces in various files. Weighting of the text
1182 : feinerer 21 matrix is now possible.
1183 :    
1184 : feinerer 20 2005-11-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
1185 :    
1186 :     * R/textdoccol.R: One can build term-document matrices if
1187 :     nessecary (with buildTDM(...)) and fill the field tdm from a text
1188 :     document collection with it.
1189 :    
1190 :     * R/textmatrix.R: Wrote S4 class for term-document matrices.
1191 :    
1192 : feinerer 19 2005-11-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
1193 :    
1194 :     * R/textdoccol.R: We now can read in a whole XML file with several
1195 :     news items.
1196 :    
1197 : feinerer 17 2005-11-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
1198 :    
1199 :     * R/textdoccol.R: Set up an S4 class for a collection of text
1200 :     documents. A first attempt to read in XML input (like the RCV1
1201 :     set) was made.
1202 :    
1203 :     * R/textdocument.R: Set up an S4 class for text documents. Wrote
1204 :     some accessor functions.
1205 :    
1206 :     * data/newsitem.xml: Added this XML file for testing purposes. It
1207 :     contains a single news item from the Reuters Corpus Volume 1
1208 :     (RCV1) XML set.
1209 :    
1210 : feinerer 16 2005-10-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
1211 :    
1212 :     * R/textmatrix.R (textmatrix): Removed the transpose of the original
1213 :     textmatrix as k-means clustering provided by R (kmeans) now works on
1214 :     this textmatrix. The result is a k-means text clustering with a
1215 :     similarity measure based upon word frequences.
1216 :    
1217 :     2005-10-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
1218 :    
1219 :     * R/textmatrix.R: Adapted the preprocessing code from the R
1220 :     package "lsa" written by Fridolin Wild to build a document text matrix.
1221 :    
1222 :     2005-10-02 Ingo Feinerer <h0125130@wu-wien.ac.at>
1223 :    
1224 : feinerer 799 * Set up the R Text Mining Package infrastructure.

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