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Revision 1169 - (view) (download)

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

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