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Revision 1159 - (view) (download)

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

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