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

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