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Revision 1040 - (view) (download)

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

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