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Annotation of /trunk/tm/ChangeLog

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Revision 779 - (view) (download)

1 : feinerer 779 2007-09-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
2 :    
3 :     * man/removePunctuation.Rd: Added documentation. Function also exported to NAMESPACE.
4 :    
5 : feinerer 777 2007-08-28 Ingo Feinerer <h0125130@wu-wien.ac.at>
6 :    
7 :     * R/fungen.R: Use S4 class for function generators instead of S3 attributes.
8 :    
9 : feinerer 776 2007-07-29 Ingo Feinerer <h0125130@wu-wien.ac.at>
10 :    
11 :     * R/reader.R (readPDF): Removed manual checks for pdftotext and
12 :     pdfinfo. The system call gives a warning anyway.
13 :    
14 : feinerer 775 2007-07-28 Ingo Feinerer <h0125130@wu-wien.ac.at>
15 :    
16 :     * R/textdoccol.R (asPlain): Conversion from
17 :     StructuredTextDocuments to PlainTextDocuments.
18 :    
19 : feinerer 773 2007-07-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
20 :    
21 : feinerer 774 * R/termdocmatrix.R: Added convenience methods ("[", nrow, ncol)
22 :     for accessing term-document matrices.
23 :    
24 : feinerer 773 * inst/doc/tm.Rnw: readPDF is only called if pdftotext and pdfinfo
25 :     are installed.
26 :    
27 : feinerer 770 2007-07-17 Ingo Feinerer <h0125130@wu-wien.ac.at>
28 :    
29 :     * R/termdocmatrix.R (TermDocMatrix): Improved efficiency. Kudos to
30 :     Christian Buchta.
31 :    
32 : feinerer 768 2007-07-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
33 :    
34 :     * inst/doc/tm.Rnw: Update vignette (readPDF, readHTML, preprocessReut21578XML).
35 :    
36 : feinerer 766 2007-07-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
37 :    
38 : feinerer 767 * R/reader.R (readHTML): Added very simple HTML reader to obtain StructuredTextDocuments.
39 :    
40 : feinerer 766 * R/reader.R (readPDF): Added PDF reader.
41 :    
42 : feinerer 765 2007-07-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
43 :    
44 :     * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
45 :    
46 :     * inst/stopwords/english.dat: Added the term "yes" to stopwords.
47 :    
48 :     * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
49 :    
50 :     * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
51 :    
52 : feinerer 763 2007-07-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
53 :    
54 :     * R/distmeasure.R (dissimilarity): Replaced dists call from
55 :     package cba by new dist call from package proxy.
56 :    
57 : feinerer 761 2007-07-10 Ingo Feinerer <h0125130@wu-wien.ac.at>
58 :    
59 :     * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
60 :    
61 : feinerer 760 2007-06-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
62 :    
63 :     * R/termdocmatrix.R: require() uses the quietly option to suppress
64 :     loading messages.
65 :    
66 : feinerer 758 2007-06-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
67 :    
68 :     * R/dictionary.R: Added dictionary support.
69 :    
70 : feinerer 757 2007-06-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
71 :    
72 :     * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
73 :     documents. This simplifies some functions, e.g., asPlain.
74 :    
75 : feinerer 756 2007-06-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
76 :    
77 :     * inst/doc/tm.Rnw: Fixed some typos in vignette.
78 :    
79 : feinerer 755 2007-06-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
80 :    
81 :     * R/textdoccol.R (replaceWords): Added method to replace a set of
82 :     words by a single word. Useful for synonyms.
83 :    
84 : feinerer 754 2007-05-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
85 :    
86 :     * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
87 :    
88 : feinerer 752 2007-05-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
89 :    
90 :     * R/termdocmatrix.R (textvector): Small fix for dealing with empty
91 :     vectors. Thanks to Ariel Maguyon for his error report.
92 :     (removeSparseTerms): New function to remove columns from a
93 :     term-document matrix exceeding a sparse factor.
94 :    
95 : feinerer 751 2007-05-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
96 :    
97 :     * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
98 :    
99 : feinerer 750 2007-05-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
100 :    
101 :     * man/sFilter.Rd: Corrected documentation on statement format (use
102 :     '==' instead of '=').
103 :    
104 : feinerer 749 2007-05-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
105 :    
106 :     * R/aobjects.R (StructuredTextDocument): Inherits from
107 :     TextDocument.
108 :    
109 : feinerer 748 2007-05-04 Ingo Feinerer <h0125130@wu-wien.ac.at>
110 :    
111 :     * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
112 :     on sparse matrices as proposed by Martin Maechler.
113 :    
114 : feinerer 747 2007-04-27 Ingo Feinerer <h0125130@wu-wien.ac.at>
115 :    
116 :     * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
117 :     \pkg{filehash} version makes them deprecated.
118 :    
119 : feinerer 744 2007-04-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
120 :    
121 :     * R/termdocmatrix.R (textvector): Stemming is now performed before
122 :     erasing stopwords.
123 :     (weightMatrix): Adapted to handle sparse matrices.
124 :     (TermDocMatrix): Sparse matrix is now efficiently built by
125 :     direct stepwise insertion of row values into it.
126 :    
127 : feinerer 741 2007-04-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
128 :    
129 :     * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
130 :     due to ongoing problems. For our purposes the latter is as useful
131 :     as the replaced package.
132 :    
133 : feinerer 738 2007-04-20 Ingo Feinerer <h0125130@wu-wien.ac.at>
134 :    
135 :     * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.
136 :    
137 :     * man/TermDocMatrix.Rd: Remove deprecated \code{language} argument.
138 :    
139 : feinerer 737 2007-04-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
140 :    
141 :     * R/resolve.R (resolveISOCode): Added ISO 639-1 codes for
142 :     languages with available stopwords.
143 :    
144 : feinerer 736 2007-04-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
145 :    
146 :     * inst/doc/tm.Rnw: Minor corrections in the vignette.
147 :    
148 : feinerer 731 2007-04-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
149 :    
150 : feinerer 732 * DESCRIPTION: Update to version 0.2, since a lot of new features
151 :     have been integrated.
152 : feinerer 731
153 : feinerer 732 * inst/stopwords: Updated existing stopwords and added stopwords
154 :     for various other languages.
155 :    
156 : feinerer 729 2007-04-10 Ingo Feinerer <h0125130@wu-wien.ac.at>
157 :    
158 : feinerer 730 * man/: Updated documentation.
159 :    
160 : feinerer 729 * Work/testDb.R: Script to test database stuff.
161 :    
162 :     * R/: Fixed various database related bugs. Seems to be rather
163 :     useable now, i.e., consider as alpha status for now.
164 :    
165 : feinerer 727 2007-04-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
166 :    
167 :     * R/: Fixed some bugs related to database support.
168 :    
169 : feinerer 726 2007-04-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
170 :    
171 :     * man/: Added a lot of examples to the manuals.
172 :    
173 : feinerer 725 2007-04-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
174 :    
175 :     * man/: Updated parts of the documentation.
176 :    
177 :     * R/textdoccol.R (asPlain): Added conversion from newsgroup
178 :     documents to plain text documents.
179 :    
180 : feinerer 722 2007-04-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
181 :    
182 : feinerer 724 * R/textdoccol.R: Finished experimental database support. Not yet
183 :     intensively tested.
184 :    
185 : feinerer 723 * R/source.R: Now each source has a default reader.
186 :    
187 : feinerer 722 * R/reader.R: \code{FunctionGenerator} is now an attribute, not a
188 :     class anymore.
189 :    
190 :     * R/plaintextdoc.R: Custom show method for plain text documents.
191 :    
192 :     * R/aobjects.R: Added a class for structured text documents.
193 :    
194 :     * R/reader.R: Replaced remaining \code{parser} occurrences with
195 :     \code{reader}.
196 :    
197 :     * R/textdoccol.R (summary): Indent tags.
198 :    
199 : feinerer 725 * R/textdoccol.R (removePunctuation): Transform method to remove
200 : feinerer 722 punctuation marks.
201 :    
202 : feinerer 721 2007-03-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
203 :    
204 :     * R/textdoccol.R (sFilter): Simplified sFilter significantly by
205 :     using prescindMeta().
206 :    
207 : feinerer 719 2007-03-18 Ingo Feinerer <h0125130@wu-wien.ac.at>
208 :    
209 :     * R/textdoccol.R: Improved database support.
210 :    
211 : feinerer 717 2007-03-16 Ingo Feinerer <h0125130@wu-wien.ac.at>
212 :    
213 : feinerer 718 * R/termdocmatrix.R (TermDocMatrix): Uses sparse matrices.
214 :    
215 : feinerer 717 * R/resolve.R (resolveISOcode): Extracts the language from a ISO
216 :     language code.
217 :    
218 :     * R/textdoccol.R (TextDocCol): Refactored several parser arguments
219 :     into parserControl argument.
220 :    
221 :     * R/aobjects.R (TextDocument): Introduced the "Language" slot.
222 :    
223 : feinerer 713 2007-03-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
224 :    
225 : feinerer 715 * Work/tmDataSetup.R: The datasets acq and crude can now be
226 :     created on the fly.
227 :    
228 : feinerer 713 * R/stopwords.R: Introduced a function returning the stopwords for
229 :     a given language (English, German and French at the moment)
230 :    
231 :     * R/textdoccol.R (stemDoc): Stemming uses Rstem if available,
232 :     otherwise falls back to Snowball package.
233 :    
234 : feinerer 711 2007-01-30 Ingo Feinerer <h0125130@wu-wien.ac.at>
235 :    
236 :     * man/dissimilarity-methods.Rd: Make clear that any method offered
237 :     by "dists" from package "cba" can be used.
238 :    
239 : feinerer 708 2007-01-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
240 :    
241 : feinerer 710 * inst/doc/tm.Rnw: Fixed quotes-appearing-as-boxes-bug according
242 :     to Kurt's latex suggestion. Removed points and underscores in
243 :     variable names for consistent naming.
244 :    
245 : feinerer 708 * DESCRIPTION: Update to version 0.1-2.
246 :    
247 :     * man/TextRepository.Rd: Fixed bug in documentation.
248 :    
249 : feinerer 704 2007-01-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
250 :    
251 :     * DESCRIPTION: Update to version 0.1-1.
252 :    
253 : feinerer 702 2007-01-09 Ingo Feinerer <h0125130@wu-wien.ac.at>
254 :    
255 :     * R/textdoccol.R (stemDoc): Use Rstem::wordStem instead of
256 :     wordStem.
257 :    
258 : feinerer 698 2007-01-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
259 :    
260 :     * R/: Changes due to Kurt's review.
261 :    
262 : feinerer 694 2006-12-31 Ingo Feinerer <h0125130@wu-wien.ac.at>
263 :    
264 :     * R/: Implemented improvements based upon comments by David
265 :     Meyer.
266 :    
267 : feinerer 691 2006-12-17 Ingo Feinerer <h0125130@wu-wien.ac.at>
268 :    
269 :     * inst/doc/: Rewrote vignette.
270 :    
271 :     * man/: Improved documentation.
272 :    
273 : feinerer 690 2006-12-16 Ingo Feinerer <h0125130@wu-wien.ac.at>
274 :    
275 :     * man/: Updated documentation.
276 :    
277 :     * DESCRIPTION: Changed package name to "tm". Updated version to
278 :     0.1 for first CRAN release.
279 :    
280 :     * inst/texts/gmane.comp.lang.r.general.mbox: mbox Gmane R mailing
281 :     list archive example.
282 :    
283 :     * inst/texts/gmane.comp.lang.r.gr.rdf: RSS Gmane R mailing list
284 :     archive example.
285 :    
286 :     * R/preprocess.R (convert_mbox_eml): A simple e-mail converter
287 :     from (several mails per box) mbox format to (single mail per file)
288 :     eml format.
289 :    
290 : feinerer 689 2006-12-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
291 :    
292 :     * data/crude.rda: Rebuilt.
293 :    
294 :     * data/acq.rda: Rebuilt.
295 :    
296 :     * R/reader.R: Factored out reader and parser methods from
297 :     textdoccol.R.
298 :    
299 :     * R/source.R: Factored out Source methods from aobjects.R and
300 :     textdoccol.R.
301 :     (GmaneRSource): Encapsulates Gmane R mailing list archive RSS
302 :     feeds.
303 :    
304 :     * R/textdoccol.R (DirSource): Added support for recursive
305 :     traversal of directories.
306 :    
307 :     2006-12-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
308 :    
309 :     * R/textdoccol.R ([[): Loads the document corpus automatically
310 :     into memory upon access.
311 :     (tm_transform, tm_filter): Removed several checks whether the
312 :     document is already loaded ([[ ensures this now).
313 :     (gmane_r_reader): Reader for RSS feeds as provided by the Gmane R
314 :     mailing list archive.
315 :    
316 :     2006-12-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
317 :    
318 :     * R/aobjects.R (TextDocument): Is now a virtual class.
319 :     (Source): Is now a virtual class.
320 :    
321 :     2006-12-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
322 :    
323 :     * R/textdoccol.R (c): Support for an arbitrary number of document
324 :     collections.
325 :    
326 : feinerer 77 2006-11-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
327 :    
328 :     * R/textrepo.R: Updated TextRepository (constructor), append_elem,
329 :     append_meta and remove_meta.
330 :    
331 :     * R/textdoccol.R: Removed modify_metadata method.
332 :    
333 :     * R/textrepo.R: Removed modify_metadata method.
334 :    
335 :     * R/textdoccol.R (remove_meta): Supports removal of document
336 :     collection metadata and document (= in data frame) metadata.
337 :    
338 : feinerer 76 2006-11-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
339 :    
340 :     * R/textdoccol.R (append_doc): Bug fix for handling empty metadata.
341 :    
342 :     * data/crude.rda: Rebuilt.
343 :    
344 :     * data/acq.rda: Rebuilt.
345 :    
346 :     * inst/doc/textmin.Rnw: Updated vignette to reflect code changes.
347 :    
348 :     * R/textdoccol.R ([): Bug fix for subsetting a document
349 :     collection's data frame.
350 :    
351 : feinerer 75 2006-11-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
352 :    
353 :     * R/textdoccol.R: Bug fixes in s_filter. Added full query support
354 :     to s_filter.
355 :    
356 :     * R/textdoccol.R: Local text documents' metadata can now be copied
357 :     to a document collection's data frame with prescind_meta.
358 :    
359 : feinerer 73 2006-11-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
360 :    
361 : feinerer 74 * R/: Text documents' slot metadata is now accessible in s_filter.
362 :    
363 : feinerer 73 * R/: Rewrote s_filter function (has still some restrictions).
364 :    
365 : feinerer 72 2006-11-20 Ingo Feinerer <h0125130@wu-wien.ac.at>
366 :    
367 :     * R/: Various fixes in handling metadata.
368 :    
369 :     * R/: Added update mechanism for text document collections.
370 :    
371 : feinerer 71 2006-11-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
372 :    
373 :     * R/: Merging of document collections now creates a binary tree
374 :     for reconstructing merged document collections.
375 :    
376 :     * R/: Redesign of metadata for document collections.
377 :    
378 : feinerer 70 2006-11-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
379 :    
380 :     * R/: Messages now use \code{ngettext}.
381 :    
382 : feinerer 69 2006-11-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
383 :    
384 :     * R/: Added functions for modifying and removing metadata.
385 :    
386 : feinerer 67 2006-11-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
387 :    
388 :     * man/: Updated some documentation.
389 :    
390 :     * R/: Corrected some connection issues.
391 :    
392 :     * inst/doc: Worked on the vignette.
393 :    
394 : feinerer 65 2006-10-31 Ingo Feinerer <h0125130@wu-wien.ac.at>
395 :    
396 : feinerer 66 * inst/: Added texts and started vignette.
397 :    
398 : feinerer 65 * R/: Final changes based upon David's comments.
399 :    
400 : feinerer 64 2006-10-29 Ingo Feinerer <h0125130@wu-wien.ac.at>
401 :    
402 :     * NAMESPACE: Corrected exports (generic methods need exportMethods
403 :     directives!).
404 :    
405 : feinerer 63 2006-10-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
406 :    
407 :     * R/: Modified the TextDocCol constructur and various parsers. It
408 :     is now modular and supports various file formats via plugins (see
409 :     the new "Source" class).
410 :    
411 : feinerer 62 2006-10-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
412 :    
413 :     * man/: Revised documentation after previous code changes.
414 :    
415 : feinerer 61 2006-10-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
416 :    
417 :     * R/: Remaining changes as discussed with David.
418 :    
419 : feinerer 60 2006-10-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
420 :    
421 :     * R/: Some changes as suggested by David. The rest will follow
422 :     within the next days.
423 :    
424 : feinerer 59 2006-09-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
425 :    
426 :     * man/: Finished documentation.
427 :    
428 : feinerer 58 2006-09-25 Ingo Feinerer <h0125130@wu-wien.ac.at>
429 :    
430 :     * man/: Wrote some documentation.
431 :    
432 : feinerer 56 2006-09-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
433 :    
434 :     * R/: Further syntactic sugar in form of additional assignment and
435 :     accessor methods.
436 :    
437 : feinerer 54 2006-09-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
438 :    
439 :     * R/: Syntactic sugar in form of "length", "show" and "summary"
440 : feinerer 56 operators.
441 : feinerer 54
442 : feinerer 53 2006-08-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
443 :    
444 :     * R/: Diverse updates. Mainly on default operators ("[" or "c")
445 :     and dissimilarities.
446 :    
447 : feinerer 52 2006-08-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
448 :    
449 :     * R/: Added similarity functions.
450 :    
451 :     * data/: Added english stopwords.
452 :    
453 : feinerer 50 2006-08-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
454 :    
455 : feinerer 51 * data/: Examples compiled for new features
456 :    
457 :     * R/: Changes due to new structure.
458 :    
459 : feinerer 50 * NAMESPACE: Corrected namespace to reflect new structure.
460 :    
461 :     * R/termdocmatrix.R: Adapted for new naming scheme.
462 :    
463 : feinerer 49 2006-08-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
464 :    
465 :     * R/textdoccol.R: Adapted code for new class structure. Wrote
466 :     several transform and filter functions operating on text document
467 :     collections (alias text document databases).
468 :    
469 :     * R/aobjects.R: Adapted class structure with inheritance,
470 :     repositories and additional meta data. Loading files on demand is
471 :     now possible.
472 :    
473 : feinerer 48 2006-07-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
474 :    
475 :     * R/: Some cosmetic cleanups.
476 :    
477 :     * inst/: Removed vignette on clustering. That and much more is now
478 :     described in the JSS paper on text mining. Based upon that
479 :     article an elaborated vignette will be incorporated in the future.
480 :    
481 : feinerer 42 2006-07-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
482 :    
483 :     * R/: Updated generic S4 methods to comply with signature changes
484 :     in newer versions of R (> 2.3)
485 :    
486 : feinerer 41 2006-03-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
487 :    
488 :     * ext/R/importRIS.R: Automatic RIS import is now possible.
489 :    
490 : feinerer 40 2006-02-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
491 :    
492 :     * R/textdoccol.R: Added RIS HTML input format.
493 :    
494 : feinerer 39 2006-01-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
495 :    
496 :     * R/textdoccol.R: Removed bug that caused invalid text document
497 :     collections when handling many input files.
498 :    
499 : feinerer 36 2006-01-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
500 :    
501 : feinerer 37 * R/textdoccol.R: Restructured and extended file import
502 :     mechanism.
503 :    
504 : feinerer 36 * inst/doc/clustering.Rnw: Adapted vignette for use with
505 :     ReutNews.rda
506 :    
507 :     * man/ReutNews.Rd: Documentation for ReutNews.rda
508 :    
509 :     * data/ReutNews.rda: A tiny Reuters21578 example data set.
510 :    
511 : feinerer 34 2005-12-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
512 :    
513 :     * inst/doc/clustering.Rnw: Wrote a small vignette to present the
514 :     clustering facilities of this package.
515 :    
516 : feinerer 33 2005-12-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
517 :    
518 :     * R/aobjects.R: Changed package document structure to avoid class
519 :     dependency problems.
520 :    
521 : feinerer 28 2005-12-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
522 :    
523 : feinerer 29 * Wrote a script for the ModLewis Split for the Reuters-21578 XML
524 :     data set.
525 :    
526 : feinerer 28 * Finished documentation and reordered directory structure. Now "R
527 :     CMD check textmin" works without errors.
528 :    
529 : feinerer 27 2005-12-04 Ingo Feinerer <h0125130@wu-wien.ac.at>
530 :    
531 :     * src/: Various splits can now be easily created for the
532 :     Reuters21578 data set.
533 :    
534 : feinerer 26 2005-12-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
535 :    
536 :     * Updated documentation
537 :    
538 : feinerer 25 2005-11-30 Ingo Feinerer <h0125130@wu-wien.ac.at>
539 :    
540 :     * Wrote R documentation for some classes and methods.
541 :    
542 : feinerer 21 2005-11-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
543 :    
544 : feinerer 22 * R/textdoccol.R: Constructor of textdoccol allows import of CSV
545 :     files. See the questionnaire data/Umfrage.csv for such an example.
546 : feinerer 23 We are now able to import files in Reuters-21578 XML format.
547 : feinerer 22
548 : feinerer 21 * Changed class interfaces in various files. Weighting of the text
549 :     matrix is now possible.
550 :    
551 : feinerer 20 2005-11-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
552 :    
553 :     * R/textdoccol.R: One can build term-document matrices if
554 :     nessecary (with buildTDM(...)) and fill the field tdm from a text
555 :     document collection with it.
556 :    
557 :     * R/textmatrix.R: Wrote S4 class for term-document matrices.
558 :    
559 : feinerer 19 2005-11-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
560 :    
561 :     * R/textdoccol.R: We now can read in a whole XML file with several
562 :     news items.
563 :    
564 : feinerer 17 2005-11-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
565 :    
566 :     * R/textdoccol.R: Set up an S4 class for a collection of text
567 :     documents. A first attempt to read in XML input (like the RCV1
568 :     set) was made.
569 :    
570 :     * R/textdocument.R: Set up an S4 class for text documents. Wrote
571 :     some accessor functions.
572 :    
573 :     * data/newsitem.xml: Added this XML file for testing purposes. It
574 :     contains a single news item from the Reuters Corpus Volume 1
575 :     (RCV1) XML set.
576 :    
577 : feinerer 16 2005-10-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
578 :    
579 :     * R/textmatrix.R (textmatrix): Removed the transpose of the original
580 :     textmatrix as k-means clustering provided by R (kmeans) now works on
581 :     this textmatrix. The result is a k-means text clustering with a
582 :     similarity measure based upon word frequences.
583 :    
584 :     2005-10-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
585 :    
586 :     * R/textmatrix.R: Adapted the preprocessing code from the R
587 :     package "lsa" written by Fridolin Wild to build a document text matrix.
588 :    
589 :     2005-10-02 Ingo Feinerer <h0125130@wu-wien.ac.at>
590 :    
591 :     * Set up the R Text Mining Package infrastructure.

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