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Annotation of /trunk/tm/ChangeLog

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Revision 760 - (view) (download)

1 : feinerer 760 2007-06-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
2 :    
3 :     * R/termdocmatrix.R: require() uses the quietly option to suppress
4 :     loading messages.
5 :    
6 : feinerer 758 2007-06-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
7 :    
8 :     * R/dictionary.R: Added dictionary support.
9 :    
10 : feinerer 757 2007-06-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
11 :    
12 :     * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
13 :     documents. This simplifies some functions, e.g., asPlain.
14 :    
15 : feinerer 756 2007-06-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
16 :    
17 :     * inst/doc/tm.Rnw: Fixed some typos in vignette.
18 :    
19 : feinerer 755 2007-06-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
20 :    
21 :     * R/textdoccol.R (replaceWords): Added method to replace a set of
22 :     words by a single word. Useful for synonyms.
23 :    
24 : feinerer 754 2007-05-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
25 :    
26 :     * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
27 :    
28 : feinerer 752 2007-05-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
29 :    
30 :     * R/termdocmatrix.R (textvector): Small fix for dealing with empty
31 :     vectors. Thanks to Ariel Maguyon for his error report.
32 :     (removeSparseTerms): New function to remove columns from a
33 :     term-document matrix exceeding a sparse factor.
34 :    
35 : feinerer 751 2007-05-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
36 :    
37 :     * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
38 :    
39 : feinerer 750 2007-05-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
40 :    
41 :     * man/sFilter.Rd: Corrected documentation on statement format (use
42 :     '==' instead of '=').
43 :    
44 : feinerer 749 2007-05-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
45 :    
46 :     * R/aobjects.R (StructuredTextDocument): Inherits from
47 :     TextDocument.
48 :    
49 : feinerer 748 2007-05-04 Ingo Feinerer <h0125130@wu-wien.ac.at>
50 :    
51 :     * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
52 :     on sparse matrices as proposed by Martin Maechler.
53 :    
54 : feinerer 747 2007-04-27 Ingo Feinerer <h0125130@wu-wien.ac.at>
55 :    
56 :     * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
57 :     \pkg{filehash} version makes them deprecated.
58 :    
59 : feinerer 744 2007-04-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
60 :    
61 :     * R/termdocmatrix.R (textvector): Stemming is now performed before
62 :     erasing stopwords.
63 :     (weightMatrix): Adapted to handle sparse matrices.
64 :     (TermDocMatrix): Sparse matrix is now efficiently built by
65 :     direct stepwise insertion of row values into it.
66 :    
67 : feinerer 741 2007-04-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
68 :    
69 :     * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
70 :     due to ongoing problems. For our purposes the latter is as useful
71 :     as the replaced package.
72 :    
73 : feinerer 738 2007-04-20 Ingo Feinerer <h0125130@wu-wien.ac.at>
74 :    
75 :     * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.
76 :    
77 :     * man/TermDocMatrix.Rd: Remove deprecated \code{language} argument.
78 :    
79 : feinerer 737 2007-04-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
80 :    
81 :     * R/resolve.R (resolveISOCode): Added ISO 639-1 codes for
82 :     languages with available stopwords.
83 :    
84 : feinerer 736 2007-04-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
85 :    
86 :     * inst/doc/tm.Rnw: Minor corrections in the vignette.
87 :    
88 : feinerer 731 2007-04-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
89 :    
90 : feinerer 732 * DESCRIPTION: Update to version 0.2, since a lot of new features
91 :     have been integrated.
92 : feinerer 731
93 : feinerer 732 * inst/stopwords: Updated existing stopwords and added stopwords
94 :     for various other languages.
95 :    
96 : feinerer 729 2007-04-10 Ingo Feinerer <h0125130@wu-wien.ac.at>
97 :    
98 : feinerer 730 * man/: Updated documentation.
99 :    
100 : feinerer 729 * Work/testDb.R: Script to test database stuff.
101 :    
102 :     * R/: Fixed various database related bugs. Seems to be rather
103 :     useable now, i.e., consider as alpha status for now.
104 :    
105 : feinerer 727 2007-04-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
106 :    
107 :     * R/: Fixed some bugs related to database support.
108 :    
109 : feinerer 726 2007-04-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
110 :    
111 :     * man/: Added a lot of examples to the manuals.
112 :    
113 : feinerer 725 2007-04-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
114 :    
115 :     * man/: Updated parts of the documentation.
116 :    
117 :     * R/textdoccol.R (asPlain): Added conversion from newsgroup
118 :     documents to plain text documents.
119 :    
120 : feinerer 722 2007-04-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
121 :    
122 : feinerer 724 * R/textdoccol.R: Finished experimental database support. Not yet
123 :     intensively tested.
124 :    
125 : feinerer 723 * R/source.R: Now each source has a default reader.
126 :    
127 : feinerer 722 * R/reader.R: \code{FunctionGenerator} is now an attribute, not a
128 :     class anymore.
129 :    
130 :     * R/plaintextdoc.R: Custom show method for plain text documents.
131 :    
132 :     * R/aobjects.R: Added a class for structured text documents.
133 :    
134 :     * R/reader.R: Replaced remaining \code{parser} occurrences with
135 :     \code{reader}.
136 :    
137 :     * R/textdoccol.R (summary): Indent tags.
138 :    
139 : feinerer 725 * R/textdoccol.R (removePunctuation): Transform method to remove
140 : feinerer 722 punctuation marks.
141 :    
142 : feinerer 721 2007-03-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
143 :    
144 :     * R/textdoccol.R (sFilter): Simplified sFilter significantly by
145 :     using prescindMeta().
146 :    
147 : feinerer 719 2007-03-18 Ingo Feinerer <h0125130@wu-wien.ac.at>
148 :    
149 :     * R/textdoccol.R: Improved database support.
150 :    
151 : feinerer 717 2007-03-16 Ingo Feinerer <h0125130@wu-wien.ac.at>
152 :    
153 : feinerer 718 * R/termdocmatrix.R (TermDocMatrix): Uses sparse matrices.
154 :    
155 : feinerer 717 * R/resolve.R (resolveISOcode): Extracts the language from a ISO
156 :     language code.
157 :    
158 :     * R/textdoccol.R (TextDocCol): Refactored several parser arguments
159 :     into parserControl argument.
160 :    
161 :     * R/aobjects.R (TextDocument): Introduced the "Language" slot.
162 :    
163 : feinerer 713 2007-03-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
164 :    
165 : feinerer 715 * Work/tmDataSetup.R: The datasets acq and crude can now be
166 :     created on the fly.
167 :    
168 : feinerer 713 * R/stopwords.R: Introduced a function returning the stopwords for
169 :     a given language (English, German and French at the moment)
170 :    
171 :     * R/textdoccol.R (stemDoc): Stemming uses Rstem if available,
172 :     otherwise falls back to Snowball package.
173 :    
174 : feinerer 711 2007-01-30 Ingo Feinerer <h0125130@wu-wien.ac.at>
175 :    
176 :     * man/dissimilarity-methods.Rd: Make clear that any method offered
177 :     by "dists" from package "cba" can be used.
178 :    
179 : feinerer 708 2007-01-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
180 :    
181 : feinerer 710 * inst/doc/tm.Rnw: Fixed quotes-appearing-as-boxes-bug according
182 :     to Kurt's latex suggestion. Removed points and underscores in
183 :     variable names for consistent naming.
184 :    
185 : feinerer 708 * DESCRIPTION: Update to version 0.1-2.
186 :    
187 :     * man/TextRepository.Rd: Fixed bug in documentation.
188 :    
189 : feinerer 704 2007-01-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
190 :    
191 :     * DESCRIPTION: Update to version 0.1-1.
192 :    
193 : feinerer 702 2007-01-09 Ingo Feinerer <h0125130@wu-wien.ac.at>
194 :    
195 :     * R/textdoccol.R (stemDoc): Use Rstem::wordStem instead of
196 :     wordStem.
197 :    
198 : feinerer 698 2007-01-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
199 :    
200 :     * R/: Changes due to Kurt's review.
201 :    
202 : feinerer 694 2006-12-31 Ingo Feinerer <h0125130@wu-wien.ac.at>
203 :    
204 :     * R/: Implemented improvements based upon comments by David
205 :     Meyer.
206 :    
207 : feinerer 691 2006-12-17 Ingo Feinerer <h0125130@wu-wien.ac.at>
208 :    
209 :     * inst/doc/: Rewrote vignette.
210 :    
211 :     * man/: Improved documentation.
212 :    
213 : feinerer 690 2006-12-16 Ingo Feinerer <h0125130@wu-wien.ac.at>
214 :    
215 :     * man/: Updated documentation.
216 :    
217 :     * DESCRIPTION: Changed package name to "tm". Updated version to
218 :     0.1 for first CRAN release.
219 :    
220 :     * inst/texts/gmane.comp.lang.r.general.mbox: mbox Gmane R mailing
221 :     list archive example.
222 :    
223 :     * inst/texts/gmane.comp.lang.r.gr.rdf: RSS Gmane R mailing list
224 :     archive example.
225 :    
226 :     * R/preprocess.R (convert_mbox_eml): A simple e-mail converter
227 :     from (several mails per box) mbox format to (single mail per file)
228 :     eml format.
229 :    
230 : feinerer 689 2006-12-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
231 :    
232 :     * data/crude.rda: Rebuilt.
233 :    
234 :     * data/acq.rda: Rebuilt.
235 :    
236 :     * R/reader.R: Factored out reader and parser methods from
237 :     textdoccol.R.
238 :    
239 :     * R/source.R: Factored out Source methods from aobjects.R and
240 :     textdoccol.R.
241 :     (GmaneRSource): Encapsulates Gmane R mailing list archive RSS
242 :     feeds.
243 :    
244 :     * R/textdoccol.R (DirSource): Added support for recursive
245 :     traversal of directories.
246 :    
247 :     2006-12-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
248 :    
249 :     * R/textdoccol.R ([[): Loads the document corpus automatically
250 :     into memory upon access.
251 :     (tm_transform, tm_filter): Removed several checks whether the
252 :     document is already loaded ([[ ensures this now).
253 :     (gmane_r_reader): Reader for RSS feeds as provided by the Gmane R
254 :     mailing list archive.
255 :    
256 :     2006-12-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
257 :    
258 :     * R/aobjects.R (TextDocument): Is now a virtual class.
259 :     (Source): Is now a virtual class.
260 :    
261 :     2006-12-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
262 :    
263 :     * R/textdoccol.R (c): Support for an arbitrary number of document
264 :     collections.
265 :    
266 : feinerer 77 2006-11-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
267 :    
268 :     * R/textrepo.R: Updated TextRepository (constructor), append_elem,
269 :     append_meta and remove_meta.
270 :    
271 :     * R/textdoccol.R: Removed modify_metadata method.
272 :    
273 :     * R/textrepo.R: Removed modify_metadata method.
274 :    
275 :     * R/textdoccol.R (remove_meta): Supports removal of document
276 :     collection metadata and document (= in data frame) metadata.
277 :    
278 : feinerer 76 2006-11-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
279 :    
280 :     * R/textdoccol.R (append_doc): Bug fix for handling empty metadata.
281 :    
282 :     * data/crude.rda: Rebuilt.
283 :    
284 :     * data/acq.rda: Rebuilt.
285 :    
286 :     * inst/doc/textmin.Rnw: Updated vignette to reflect code changes.
287 :    
288 :     * R/textdoccol.R ([): Bug fix for subsetting a document
289 :     collection's data frame.
290 :    
291 : feinerer 75 2006-11-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
292 :    
293 :     * R/textdoccol.R: Bug fixes in s_filter. Added full query support
294 :     to s_filter.
295 :    
296 :     * R/textdoccol.R: Local text documents' metadata can now be copied
297 :     to a document collection's data frame with prescind_meta.
298 :    
299 : feinerer 73 2006-11-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
300 :    
301 : feinerer 74 * R/: Text documents' slot metadata is now accessible in s_filter.
302 :    
303 : feinerer 73 * R/: Rewrote s_filter function (has still some restrictions).
304 :    
305 : feinerer 72 2006-11-20 Ingo Feinerer <h0125130@wu-wien.ac.at>
306 :    
307 :     * R/: Various fixes in handling metadata.
308 :    
309 :     * R/: Added update mechanism for text document collections.
310 :    
311 : feinerer 71 2006-11-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
312 :    
313 :     * R/: Merging of document collections now creates a binary tree
314 :     for reconstructing merged document collections.
315 :    
316 :     * R/: Redesign of metadata for document collections.
317 :    
318 : feinerer 70 2006-11-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
319 :    
320 :     * R/: Messages now use \code{ngettext}.
321 :    
322 : feinerer 69 2006-11-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
323 :    
324 :     * R/: Added functions for modifying and removing metadata.
325 :    
326 : feinerer 67 2006-11-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
327 :    
328 :     * man/: Updated some documentation.
329 :    
330 :     * R/: Corrected some connection issues.
331 :    
332 :     * inst/doc: Worked on the vignette.
333 :    
334 : feinerer 65 2006-10-31 Ingo Feinerer <h0125130@wu-wien.ac.at>
335 :    
336 : feinerer 66 * inst/: Added texts and started vignette.
337 :    
338 : feinerer 65 * R/: Final changes based upon David's comments.
339 :    
340 : feinerer 64 2006-10-29 Ingo Feinerer <h0125130@wu-wien.ac.at>
341 :    
342 :     * NAMESPACE: Corrected exports (generic methods need exportMethods
343 :     directives!).
344 :    
345 : feinerer 63 2006-10-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
346 :    
347 :     * R/: Modified the TextDocCol constructur and various parsers. It
348 :     is now modular and supports various file formats via plugins (see
349 :     the new "Source" class).
350 :    
351 : feinerer 62 2006-10-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
352 :    
353 :     * man/: Revised documentation after previous code changes.
354 :    
355 : feinerer 61 2006-10-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
356 :    
357 :     * R/: Remaining changes as discussed with David.
358 :    
359 : feinerer 60 2006-10-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
360 :    
361 :     * R/: Some changes as suggested by David. The rest will follow
362 :     within the next days.
363 :    
364 : feinerer 59 2006-09-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
365 :    
366 :     * man/: Finished documentation.
367 :    
368 : feinerer 58 2006-09-25 Ingo Feinerer <h0125130@wu-wien.ac.at>
369 :    
370 :     * man/: Wrote some documentation.
371 :    
372 : feinerer 56 2006-09-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
373 :    
374 :     * R/: Further syntactic sugar in form of additional assignment and
375 :     accessor methods.
376 :    
377 : feinerer 54 2006-09-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
378 :    
379 :     * R/: Syntactic sugar in form of "length", "show" and "summary"
380 : feinerer 56 operators.
381 : feinerer 54
382 : feinerer 53 2006-08-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
383 :    
384 :     * R/: Diverse updates. Mainly on default operators ("[" or "c")
385 :     and dissimilarities.
386 :    
387 : feinerer 52 2006-08-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
388 :    
389 :     * R/: Added similarity functions.
390 :    
391 :     * data/: Added english stopwords.
392 :    
393 : feinerer 50 2006-08-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
394 :    
395 : feinerer 51 * data/: Examples compiled for new features
396 :    
397 :     * R/: Changes due to new structure.
398 :    
399 : feinerer 50 * NAMESPACE: Corrected namespace to reflect new structure.
400 :    
401 :     * R/termdocmatrix.R: Adapted for new naming scheme.
402 :    
403 : feinerer 49 2006-08-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
404 :    
405 :     * R/textdoccol.R: Adapted code for new class structure. Wrote
406 :     several transform and filter functions operating on text document
407 :     collections (alias text document databases).
408 :    
409 :     * R/aobjects.R: Adapted class structure with inheritance,
410 :     repositories and additional meta data. Loading files on demand is
411 :     now possible.
412 :    
413 : feinerer 48 2006-07-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
414 :    
415 :     * R/: Some cosmetic cleanups.
416 :    
417 :     * inst/: Removed vignette on clustering. That and much more is now
418 :     described in the JSS paper on text mining. Based upon that
419 :     article an elaborated vignette will be incorporated in the future.
420 :    
421 : feinerer 42 2006-07-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
422 :    
423 :     * R/: Updated generic S4 methods to comply with signature changes
424 :     in newer versions of R (> 2.3)
425 :    
426 : feinerer 41 2006-03-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
427 :    
428 :     * ext/R/importRIS.R: Automatic RIS import is now possible.
429 :    
430 : feinerer 40 2006-02-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
431 :    
432 :     * R/textdoccol.R: Added RIS HTML input format.
433 :    
434 : feinerer 39 2006-01-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
435 :    
436 :     * R/textdoccol.R: Removed bug that caused invalid text document
437 :     collections when handling many input files.
438 :    
439 : feinerer 36 2006-01-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
440 :    
441 : feinerer 37 * R/textdoccol.R: Restructured and extended file import
442 :     mechanism.
443 :    
444 : feinerer 36 * inst/doc/clustering.Rnw: Adapted vignette for use with
445 :     ReutNews.rda
446 :    
447 :     * man/ReutNews.Rd: Documentation for ReutNews.rda
448 :    
449 :     * data/ReutNews.rda: A tiny Reuters21578 example data set.
450 :    
451 : feinerer 34 2005-12-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
452 :    
453 :     * inst/doc/clustering.Rnw: Wrote a small vignette to present the
454 :     clustering facilities of this package.
455 :    
456 : feinerer 33 2005-12-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
457 :    
458 :     * R/aobjects.R: Changed package document structure to avoid class
459 :     dependency problems.
460 :    
461 : feinerer 28 2005-12-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
462 :    
463 : feinerer 29 * Wrote a script for the ModLewis Split for the Reuters-21578 XML
464 :     data set.
465 :    
466 : feinerer 28 * Finished documentation and reordered directory structure. Now "R
467 :     CMD check textmin" works without errors.
468 :    
469 : feinerer 27 2005-12-04 Ingo Feinerer <h0125130@wu-wien.ac.at>
470 :    
471 :     * src/: Various splits can now be easily created for the
472 :     Reuters21578 data set.
473 :    
474 : feinerer 26 2005-12-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
475 :    
476 :     * Updated documentation
477 :    
478 : feinerer 25 2005-11-30 Ingo Feinerer <h0125130@wu-wien.ac.at>
479 :    
480 :     * Wrote R documentation for some classes and methods.
481 :    
482 : feinerer 21 2005-11-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
483 :    
484 : feinerer 22 * R/textdoccol.R: Constructor of textdoccol allows import of CSV
485 :     files. See the questionnaire data/Umfrage.csv for such an example.
486 : feinerer 23 We are now able to import files in Reuters-21578 XML format.
487 : feinerer 22
488 : feinerer 21 * Changed class interfaces in various files. Weighting of the text
489 :     matrix is now possible.
490 :    
491 : feinerer 20 2005-11-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
492 :    
493 :     * R/textdoccol.R: One can build term-document matrices if
494 :     nessecary (with buildTDM(...)) and fill the field tdm from a text
495 :     document collection with it.
496 :    
497 :     * R/textmatrix.R: Wrote S4 class for term-document matrices.
498 :    
499 : feinerer 19 2005-11-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
500 :    
501 :     * R/textdoccol.R: We now can read in a whole XML file with several
502 :     news items.
503 :    
504 : feinerer 17 2005-11-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
505 :    
506 :     * R/textdoccol.R: Set up an S4 class for a collection of text
507 :     documents. A first attempt to read in XML input (like the RCV1
508 :     set) was made.
509 :    
510 :     * R/textdocument.R: Set up an S4 class for text documents. Wrote
511 :     some accessor functions.
512 :    
513 :     * data/newsitem.xml: Added this XML file for testing purposes. It
514 :     contains a single news item from the Reuters Corpus Volume 1
515 :     (RCV1) XML set.
516 :    
517 : feinerer 16 2005-10-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
518 :    
519 :     * R/textmatrix.R (textmatrix): Removed the transpose of the original
520 :     textmatrix as k-means clustering provided by R (kmeans) now works on
521 :     this textmatrix. The result is a k-means text clustering with a
522 :     similarity measure based upon word frequences.
523 :    
524 :     2005-10-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
525 :    
526 :     * R/textmatrix.R: Adapted the preprocessing code from the R
527 :     package "lsa" written by Fridolin Wild to build a document text matrix.
528 :    
529 :     2005-10-02 Ingo Feinerer <h0125130@wu-wien.ac.at>
530 :    
531 :     * Set up the R Text Mining Package infrastructure.

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