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

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