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Annotation of /trunk/tm/ChangeLog

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Revision 765 - (view) (download)

1 : feinerer 765 2007-07-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
2 :    
3 :     * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
4 :    
5 :     * inst/stopwords/english.dat: Added the term "yes" to stopwords.
6 :    
7 :     * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
8 :    
9 :     * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
10 :    
11 : feinerer 763 2007-07-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
12 :    
13 :     * R/distmeasure.R (dissimilarity): Replaced dists call from
14 :     package cba by new dist call from package proxy.
15 :    
16 : feinerer 761 2007-07-10 Ingo Feinerer <h0125130@wu-wien.ac.at>
17 :    
18 :     * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
19 :    
20 : feinerer 760 2007-06-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
21 :    
22 :     * R/termdocmatrix.R: require() uses the quietly option to suppress
23 :     loading messages.
24 :    
25 : feinerer 758 2007-06-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
26 :    
27 :     * R/dictionary.R: Added dictionary support.
28 :    
29 : feinerer 757 2007-06-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
30 :    
31 :     * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
32 :     documents. This simplifies some functions, e.g., asPlain.
33 :    
34 : feinerer 756 2007-06-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
35 :    
36 :     * inst/doc/tm.Rnw: Fixed some typos in vignette.
37 :    
38 : feinerer 755 2007-06-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
39 :    
40 :     * R/textdoccol.R (replaceWords): Added method to replace a set of
41 :     words by a single word. Useful for synonyms.
42 :    
43 : feinerer 754 2007-05-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
44 :    
45 :     * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
46 :    
47 : feinerer 752 2007-05-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
48 :    
49 :     * R/termdocmatrix.R (textvector): Small fix for dealing with empty
50 :     vectors. Thanks to Ariel Maguyon for his error report.
51 :     (removeSparseTerms): New function to remove columns from a
52 :     term-document matrix exceeding a sparse factor.
53 :    
54 : feinerer 751 2007-05-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
55 :    
56 :     * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
57 :    
58 : feinerer 750 2007-05-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
59 :    
60 :     * man/sFilter.Rd: Corrected documentation on statement format (use
61 :     '==' instead of '=').
62 :    
63 : feinerer 749 2007-05-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
64 :    
65 :     * R/aobjects.R (StructuredTextDocument): Inherits from
66 :     TextDocument.
67 :    
68 : feinerer 748 2007-05-04 Ingo Feinerer <h0125130@wu-wien.ac.at>
69 :    
70 :     * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
71 :     on sparse matrices as proposed by Martin Maechler.
72 :    
73 : feinerer 747 2007-04-27 Ingo Feinerer <h0125130@wu-wien.ac.at>
74 :    
75 :     * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
76 :     \pkg{filehash} version makes them deprecated.
77 :    
78 : feinerer 744 2007-04-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
79 :    
80 :     * R/termdocmatrix.R (textvector): Stemming is now performed before
81 :     erasing stopwords.
82 :     (weightMatrix): Adapted to handle sparse matrices.
83 :     (TermDocMatrix): Sparse matrix is now efficiently built by
84 :     direct stepwise insertion of row values into it.
85 :    
86 : feinerer 741 2007-04-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
87 :    
88 :     * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
89 :     due to ongoing problems. For our purposes the latter is as useful
90 :     as the replaced package.
91 :    
92 : feinerer 738 2007-04-20 Ingo Feinerer <h0125130@wu-wien.ac.at>
93 :    
94 :     * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.
95 :    
96 :     * man/TermDocMatrix.Rd: Remove deprecated \code{language} argument.
97 :    
98 : feinerer 737 2007-04-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
99 :    
100 :     * R/resolve.R (resolveISOCode): Added ISO 639-1 codes for
101 :     languages with available stopwords.
102 :    
103 : feinerer 736 2007-04-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
104 :    
105 :     * inst/doc/tm.Rnw: Minor corrections in the vignette.
106 :    
107 : feinerer 731 2007-04-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
108 :    
109 : feinerer 732 * DESCRIPTION: Update to version 0.2, since a lot of new features
110 :     have been integrated.
111 : feinerer 731
112 : feinerer 732 * inst/stopwords: Updated existing stopwords and added stopwords
113 :     for various other languages.
114 :    
115 : feinerer 729 2007-04-10 Ingo Feinerer <h0125130@wu-wien.ac.at>
116 :    
117 : feinerer 730 * man/: Updated documentation.
118 :    
119 : feinerer 729 * Work/testDb.R: Script to test database stuff.
120 :    
121 :     * R/: Fixed various database related bugs. Seems to be rather
122 :     useable now, i.e., consider as alpha status for now.
123 :    
124 : feinerer 727 2007-04-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
125 :    
126 :     * R/: Fixed some bugs related to database support.
127 :    
128 : feinerer 726 2007-04-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
129 :    
130 :     * man/: Added a lot of examples to the manuals.
131 :    
132 : feinerer 725 2007-04-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
133 :    
134 :     * man/: Updated parts of the documentation.
135 :    
136 :     * R/textdoccol.R (asPlain): Added conversion from newsgroup
137 :     documents to plain text documents.
138 :    
139 : feinerer 722 2007-04-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
140 :    
141 : feinerer 724 * R/textdoccol.R: Finished experimental database support. Not yet
142 :     intensively tested.
143 :    
144 : feinerer 723 * R/source.R: Now each source has a default reader.
145 :    
146 : feinerer 722 * R/reader.R: \code{FunctionGenerator} is now an attribute, not a
147 :     class anymore.
148 :    
149 :     * R/plaintextdoc.R: Custom show method for plain text documents.
150 :    
151 :     * R/aobjects.R: Added a class for structured text documents.
152 :    
153 :     * R/reader.R: Replaced remaining \code{parser} occurrences with
154 :     \code{reader}.
155 :    
156 :     * R/textdoccol.R (summary): Indent tags.
157 :    
158 : feinerer 725 * R/textdoccol.R (removePunctuation): Transform method to remove
159 : feinerer 722 punctuation marks.
160 :    
161 : feinerer 721 2007-03-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
162 :    
163 :     * R/textdoccol.R (sFilter): Simplified sFilter significantly by
164 :     using prescindMeta().
165 :    
166 : feinerer 719 2007-03-18 Ingo Feinerer <h0125130@wu-wien.ac.at>
167 :    
168 :     * R/textdoccol.R: Improved database support.
169 :    
170 : feinerer 717 2007-03-16 Ingo Feinerer <h0125130@wu-wien.ac.at>
171 :    
172 : feinerer 718 * R/termdocmatrix.R (TermDocMatrix): Uses sparse matrices.
173 :    
174 : feinerer 717 * R/resolve.R (resolveISOcode): Extracts the language from a ISO
175 :     language code.
176 :    
177 :     * R/textdoccol.R (TextDocCol): Refactored several parser arguments
178 :     into parserControl argument.
179 :    
180 :     * R/aobjects.R (TextDocument): Introduced the "Language" slot.
181 :    
182 : feinerer 713 2007-03-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
183 :    
184 : feinerer 715 * Work/tmDataSetup.R: The datasets acq and crude can now be
185 :     created on the fly.
186 :    
187 : feinerer 713 * R/stopwords.R: Introduced a function returning the stopwords for
188 :     a given language (English, German and French at the moment)
189 :    
190 :     * R/textdoccol.R (stemDoc): Stemming uses Rstem if available,
191 :     otherwise falls back to Snowball package.
192 :    
193 : feinerer 711 2007-01-30 Ingo Feinerer <h0125130@wu-wien.ac.at>
194 :    
195 :     * man/dissimilarity-methods.Rd: Make clear that any method offered
196 :     by "dists" from package "cba" can be used.
197 :    
198 : feinerer 708 2007-01-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
199 :    
200 : feinerer 710 * inst/doc/tm.Rnw: Fixed quotes-appearing-as-boxes-bug according
201 :     to Kurt's latex suggestion. Removed points and underscores in
202 :     variable names for consistent naming.
203 :    
204 : feinerer 708 * DESCRIPTION: Update to version 0.1-2.
205 :    
206 :     * man/TextRepository.Rd: Fixed bug in documentation.
207 :    
208 : feinerer 704 2007-01-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
209 :    
210 :     * DESCRIPTION: Update to version 0.1-1.
211 :    
212 : feinerer 702 2007-01-09 Ingo Feinerer <h0125130@wu-wien.ac.at>
213 :    
214 :     * R/textdoccol.R (stemDoc): Use Rstem::wordStem instead of
215 :     wordStem.
216 :    
217 : feinerer 698 2007-01-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
218 :    
219 :     * R/: Changes due to Kurt's review.
220 :    
221 : feinerer 694 2006-12-31 Ingo Feinerer <h0125130@wu-wien.ac.at>
222 :    
223 :     * R/: Implemented improvements based upon comments by David
224 :     Meyer.
225 :    
226 : feinerer 691 2006-12-17 Ingo Feinerer <h0125130@wu-wien.ac.at>
227 :    
228 :     * inst/doc/: Rewrote vignette.
229 :    
230 :     * man/: Improved documentation.
231 :    
232 : feinerer 690 2006-12-16 Ingo Feinerer <h0125130@wu-wien.ac.at>
233 :    
234 :     * man/: Updated documentation.
235 :    
236 :     * DESCRIPTION: Changed package name to "tm". Updated version to
237 :     0.1 for first CRAN release.
238 :    
239 :     * inst/texts/gmane.comp.lang.r.general.mbox: mbox Gmane R mailing
240 :     list archive example.
241 :    
242 :     * inst/texts/gmane.comp.lang.r.gr.rdf: RSS Gmane R mailing list
243 :     archive example.
244 :    
245 :     * R/preprocess.R (convert_mbox_eml): A simple e-mail converter
246 :     from (several mails per box) mbox format to (single mail per file)
247 :     eml format.
248 :    
249 : feinerer 689 2006-12-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
250 :    
251 :     * data/crude.rda: Rebuilt.
252 :    
253 :     * data/acq.rda: Rebuilt.
254 :    
255 :     * R/reader.R: Factored out reader and parser methods from
256 :     textdoccol.R.
257 :    
258 :     * R/source.R: Factored out Source methods from aobjects.R and
259 :     textdoccol.R.
260 :     (GmaneRSource): Encapsulates Gmane R mailing list archive RSS
261 :     feeds.
262 :    
263 :     * R/textdoccol.R (DirSource): Added support for recursive
264 :     traversal of directories.
265 :    
266 :     2006-12-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
267 :    
268 :     * R/textdoccol.R ([[): Loads the document corpus automatically
269 :     into memory upon access.
270 :     (tm_transform, tm_filter): Removed several checks whether the
271 :     document is already loaded ([[ ensures this now).
272 :     (gmane_r_reader): Reader for RSS feeds as provided by the Gmane R
273 :     mailing list archive.
274 :    
275 :     2006-12-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
276 :    
277 :     * R/aobjects.R (TextDocument): Is now a virtual class.
278 :     (Source): Is now a virtual class.
279 :    
280 :     2006-12-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
281 :    
282 :     * R/textdoccol.R (c): Support for an arbitrary number of document
283 :     collections.
284 :    
285 : feinerer 77 2006-11-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
286 :    
287 :     * R/textrepo.R: Updated TextRepository (constructor), append_elem,
288 :     append_meta and remove_meta.
289 :    
290 :     * R/textdoccol.R: Removed modify_metadata method.
291 :    
292 :     * R/textrepo.R: Removed modify_metadata method.
293 :    
294 :     * R/textdoccol.R (remove_meta): Supports removal of document
295 :     collection metadata and document (= in data frame) metadata.
296 :    
297 : feinerer 76 2006-11-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
298 :    
299 :     * R/textdoccol.R (append_doc): Bug fix for handling empty metadata.
300 :    
301 :     * data/crude.rda: Rebuilt.
302 :    
303 :     * data/acq.rda: Rebuilt.
304 :    
305 :     * inst/doc/textmin.Rnw: Updated vignette to reflect code changes.
306 :    
307 :     * R/textdoccol.R ([): Bug fix for subsetting a document
308 :     collection's data frame.
309 :    
310 : feinerer 75 2006-11-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
311 :    
312 :     * R/textdoccol.R: Bug fixes in s_filter. Added full query support
313 :     to s_filter.
314 :    
315 :     * R/textdoccol.R: Local text documents' metadata can now be copied
316 :     to a document collection's data frame with prescind_meta.
317 :    
318 : feinerer 73 2006-11-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
319 :    
320 : feinerer 74 * R/: Text documents' slot metadata is now accessible in s_filter.
321 :    
322 : feinerer 73 * R/: Rewrote s_filter function (has still some restrictions).
323 :    
324 : feinerer 72 2006-11-20 Ingo Feinerer <h0125130@wu-wien.ac.at>
325 :    
326 :     * R/: Various fixes in handling metadata.
327 :    
328 :     * R/: Added update mechanism for text document collections.
329 :    
330 : feinerer 71 2006-11-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
331 :    
332 :     * R/: Merging of document collections now creates a binary tree
333 :     for reconstructing merged document collections.
334 :    
335 :     * R/: Redesign of metadata for document collections.
336 :    
337 : feinerer 70 2006-11-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
338 :    
339 :     * R/: Messages now use \code{ngettext}.
340 :    
341 : feinerer 69 2006-11-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
342 :    
343 :     * R/: Added functions for modifying and removing metadata.
344 :    
345 : feinerer 67 2006-11-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
346 :    
347 :     * man/: Updated some documentation.
348 :    
349 :     * R/: Corrected some connection issues.
350 :    
351 :     * inst/doc: Worked on the vignette.
352 :    
353 : feinerer 65 2006-10-31 Ingo Feinerer <h0125130@wu-wien.ac.at>
354 :    
355 : feinerer 66 * inst/: Added texts and started vignette.
356 :    
357 : feinerer 65 * R/: Final changes based upon David's comments.
358 :    
359 : feinerer 64 2006-10-29 Ingo Feinerer <h0125130@wu-wien.ac.at>
360 :    
361 :     * NAMESPACE: Corrected exports (generic methods need exportMethods
362 :     directives!).
363 :    
364 : feinerer 63 2006-10-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
365 :    
366 :     * R/: Modified the TextDocCol constructur and various parsers. It
367 :     is now modular and supports various file formats via plugins (see
368 :     the new "Source" class).
369 :    
370 : feinerer 62 2006-10-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
371 :    
372 :     * man/: Revised documentation after previous code changes.
373 :    
374 : feinerer 61 2006-10-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
375 :    
376 :     * R/: Remaining changes as discussed with David.
377 :    
378 : feinerer 60 2006-10-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
379 :    
380 :     * R/: Some changes as suggested by David. The rest will follow
381 :     within the next days.
382 :    
383 : feinerer 59 2006-09-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
384 :    
385 :     * man/: Finished documentation.
386 :    
387 : feinerer 58 2006-09-25 Ingo Feinerer <h0125130@wu-wien.ac.at>
388 :    
389 :     * man/: Wrote some documentation.
390 :    
391 : feinerer 56 2006-09-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
392 :    
393 :     * R/: Further syntactic sugar in form of additional assignment and
394 :     accessor methods.
395 :    
396 : feinerer 54 2006-09-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
397 :    
398 :     * R/: Syntactic sugar in form of "length", "show" and "summary"
399 : feinerer 56 operators.
400 : feinerer 54
401 : feinerer 53 2006-08-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
402 :    
403 :     * R/: Diverse updates. Mainly on default operators ("[" or "c")
404 :     and dissimilarities.
405 :    
406 : feinerer 52 2006-08-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
407 :    
408 :     * R/: Added similarity functions.
409 :    
410 :     * data/: Added english stopwords.
411 :    
412 : feinerer 50 2006-08-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
413 :    
414 : feinerer 51 * data/: Examples compiled for new features
415 :    
416 :     * R/: Changes due to new structure.
417 :    
418 : feinerer 50 * NAMESPACE: Corrected namespace to reflect new structure.
419 :    
420 :     * R/termdocmatrix.R: Adapted for new naming scheme.
421 :    
422 : feinerer 49 2006-08-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
423 :    
424 :     * R/textdoccol.R: Adapted code for new class structure. Wrote
425 :     several transform and filter functions operating on text document
426 :     collections (alias text document databases).
427 :    
428 :     * R/aobjects.R: Adapted class structure with inheritance,
429 :     repositories and additional meta data. Loading files on demand is
430 :     now possible.
431 :    
432 : feinerer 48 2006-07-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
433 :    
434 :     * R/: Some cosmetic cleanups.
435 :    
436 :     * inst/: Removed vignette on clustering. That and much more is now
437 :     described in the JSS paper on text mining. Based upon that
438 :     article an elaborated vignette will be incorporated in the future.
439 :    
440 : feinerer 42 2006-07-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
441 :    
442 :     * R/: Updated generic S4 methods to comply with signature changes
443 :     in newer versions of R (> 2.3)
444 :    
445 : feinerer 41 2006-03-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
446 :    
447 :     * ext/R/importRIS.R: Automatic RIS import is now possible.
448 :    
449 : feinerer 40 2006-02-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
450 :    
451 :     * R/textdoccol.R: Added RIS HTML input format.
452 :    
453 : feinerer 39 2006-01-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
454 :    
455 :     * R/textdoccol.R: Removed bug that caused invalid text document
456 :     collections when handling many input files.
457 :    
458 : feinerer 36 2006-01-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
459 :    
460 : feinerer 37 * R/textdoccol.R: Restructured and extended file import
461 :     mechanism.
462 :    
463 : feinerer 36 * inst/doc/clustering.Rnw: Adapted vignette for use with
464 :     ReutNews.rda
465 :    
466 :     * man/ReutNews.Rd: Documentation for ReutNews.rda
467 :    
468 :     * data/ReutNews.rda: A tiny Reuters21578 example data set.
469 :    
470 : feinerer 34 2005-12-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
471 :    
472 :     * inst/doc/clustering.Rnw: Wrote a small vignette to present the
473 :     clustering facilities of this package.
474 :    
475 : feinerer 33 2005-12-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
476 :    
477 :     * R/aobjects.R: Changed package document structure to avoid class
478 :     dependency problems.
479 :    
480 : feinerer 28 2005-12-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
481 :    
482 : feinerer 29 * Wrote a script for the ModLewis Split for the Reuters-21578 XML
483 :     data set.
484 :    
485 : feinerer 28 * Finished documentation and reordered directory structure. Now "R
486 :     CMD check textmin" works without errors.
487 :    
488 : feinerer 27 2005-12-04 Ingo Feinerer <h0125130@wu-wien.ac.at>
489 :    
490 :     * src/: Various splits can now be easily created for the
491 :     Reuters21578 data set.
492 :    
493 : feinerer 26 2005-12-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
494 :    
495 :     * Updated documentation
496 :    
497 : feinerer 25 2005-11-30 Ingo Feinerer <h0125130@wu-wien.ac.at>
498 :    
499 :     * Wrote R documentation for some classes and methods.
500 :    
501 : feinerer 21 2005-11-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
502 :    
503 : feinerer 22 * R/textdoccol.R: Constructor of textdoccol allows import of CSV
504 :     files. See the questionnaire data/Umfrage.csv for such an example.
505 : feinerer 23 We are now able to import files in Reuters-21578 XML format.
506 : feinerer 22
507 : feinerer 21 * Changed class interfaces in various files. Weighting of the text
508 :     matrix is now possible.
509 :    
510 : feinerer 20 2005-11-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
511 :    
512 :     * R/textdoccol.R: One can build term-document matrices if
513 :     nessecary (with buildTDM(...)) and fill the field tdm from a text
514 :     document collection with it.
515 :    
516 :     * R/textmatrix.R: Wrote S4 class for term-document matrices.
517 :    
518 : feinerer 19 2005-11-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
519 :    
520 :     * R/textdoccol.R: We now can read in a whole XML file with several
521 :     news items.
522 :    
523 : feinerer 17 2005-11-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
524 :    
525 :     * R/textdoccol.R: Set up an S4 class for a collection of text
526 :     documents. A first attempt to read in XML input (like the RCV1
527 :     set) was made.
528 :    
529 :     * R/textdocument.R: Set up an S4 class for text documents. Wrote
530 :     some accessor functions.
531 :    
532 :     * data/newsitem.xml: Added this XML file for testing purposes. It
533 :     contains a single news item from the Reuters Corpus Volume 1
534 :     (RCV1) XML set.
535 :    
536 : feinerer 16 2005-10-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
537 :    
538 :     * R/textmatrix.R (textmatrix): Removed the transpose of the original
539 :     textmatrix as k-means clustering provided by R (kmeans) now works on
540 :     this textmatrix. The result is a k-means text clustering with a
541 :     similarity measure based upon word frequences.
542 :    
543 :     2005-10-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
544 :    
545 :     * R/textmatrix.R: Adapted the preprocessing code from the R
546 :     package "lsa" written by Fridolin Wild to build a document text matrix.
547 :    
548 :     2005-10-02 Ingo Feinerer <h0125130@wu-wien.ac.at>
549 :    
550 :     * Set up the R Text Mining Package infrastructure.

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