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Revision 1095 - (view) (download)

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

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