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Annotation of /trunk/tm/ChangeLog

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Revision 793 - (view) (download)

1 : feinerer 790 2007-10-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
2 :    
3 : feinerer 793 * R/complete.R (completeStems): Completes (heuristically) word
4 :     stems.
5 :    
6 : feinerer 790 * R/termdocmatrix.R (TermDocMatrix2): New modular
7 :     constructor.
8 :    
9 :     * NAMESPACE: Exported termFreq.
10 :    
11 : feinerer 789 2007-10-16 Ingo Feinerer <h0125130@wu-wien.ac.at>
12 :    
13 :     * R/reader.R (readDOC): Added MS Word reader (using antiword).
14 :    
15 : feinerer 788 2007-10-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
16 :    
17 :     * R/weight.R: Weighting functions for TermDocMatrix.
18 :    
19 : feinerer 785 2007-10-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
20 :    
21 :     * R/termdocmatrix.R (dimnames, colnames, rownames): Wrapper
22 :     functions for accessing dimension, column, and row names.
23 :    
24 :     * R/plot.R (plot.TermDocMatrix): Plot correlations between terms.
25 :    
26 : feinerer 779 2007-09-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
27 :    
28 :     * man/removePunctuation.Rd: Added documentation. Function also exported to NAMESPACE.
29 :    
30 : feinerer 777 2007-08-28 Ingo Feinerer <h0125130@wu-wien.ac.at>
31 :    
32 :     * R/fungen.R: Use S4 class for function generators instead of S3 attributes.
33 :    
34 : feinerer 776 2007-07-29 Ingo Feinerer <h0125130@wu-wien.ac.at>
35 :    
36 :     * R/reader.R (readPDF): Removed manual checks for pdftotext and
37 :     pdfinfo. The system call gives a warning anyway.
38 :    
39 : feinerer 775 2007-07-28 Ingo Feinerer <h0125130@wu-wien.ac.at>
40 :    
41 :     * R/textdoccol.R (asPlain): Conversion from
42 :     StructuredTextDocuments to PlainTextDocuments.
43 :    
44 : feinerer 773 2007-07-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
45 :    
46 : feinerer 774 * R/termdocmatrix.R: Added convenience methods ("[", nrow, ncol)
47 :     for accessing term-document matrices.
48 :    
49 : feinerer 773 * inst/doc/tm.Rnw: readPDF is only called if pdftotext and pdfinfo
50 :     are installed.
51 :    
52 : feinerer 770 2007-07-17 Ingo Feinerer <h0125130@wu-wien.ac.at>
53 :    
54 :     * R/termdocmatrix.R (TermDocMatrix): Improved efficiency. Kudos to
55 :     Christian Buchta.
56 :    
57 : feinerer 768 2007-07-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
58 :    
59 :     * inst/doc/tm.Rnw: Update vignette (readPDF, readHTML, preprocessReut21578XML).
60 :    
61 : feinerer 766 2007-07-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
62 :    
63 : feinerer 767 * R/reader.R (readHTML): Added very simple HTML reader to obtain StructuredTextDocuments.
64 :    
65 : feinerer 766 * R/reader.R (readPDF): Added PDF reader.
66 :    
67 : feinerer 765 2007-07-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
68 :    
69 :     * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
70 :    
71 :     * inst/stopwords/english.dat: Added the term "yes" to stopwords.
72 :    
73 :     * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
74 :    
75 :     * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
76 :    
77 : feinerer 763 2007-07-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
78 :    
79 :     * R/distmeasure.R (dissimilarity): Replaced dists call from
80 :     package cba by new dist call from package proxy.
81 :    
82 : feinerer 761 2007-07-10 Ingo Feinerer <h0125130@wu-wien.ac.at>
83 :    
84 :     * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
85 :    
86 : feinerer 760 2007-06-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
87 :    
88 :     * R/termdocmatrix.R: require() uses the quietly option to suppress
89 :     loading messages.
90 :    
91 : feinerer 758 2007-06-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
92 :    
93 :     * R/dictionary.R: Added dictionary support.
94 :    
95 : feinerer 757 2007-06-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
96 :    
97 :     * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
98 :     documents. This simplifies some functions, e.g., asPlain.
99 :    
100 : feinerer 756 2007-06-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
101 :    
102 :     * inst/doc/tm.Rnw: Fixed some typos in vignette.
103 :    
104 : feinerer 755 2007-06-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
105 :    
106 :     * R/textdoccol.R (replaceWords): Added method to replace a set of
107 :     words by a single word. Useful for synonyms.
108 :    
109 : feinerer 754 2007-05-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
110 :    
111 :     * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
112 :    
113 : feinerer 752 2007-05-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
114 :    
115 :     * R/termdocmatrix.R (textvector): Small fix for dealing with empty
116 :     vectors. Thanks to Ariel Maguyon for his error report.
117 :     (removeSparseTerms): New function to remove columns from a
118 :     term-document matrix exceeding a sparse factor.
119 :    
120 : feinerer 751 2007-05-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
121 :    
122 :     * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
123 :    
124 : feinerer 750 2007-05-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
125 :    
126 :     * man/sFilter.Rd: Corrected documentation on statement format (use
127 :     '==' instead of '=').
128 :    
129 : feinerer 749 2007-05-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
130 :    
131 :     * R/aobjects.R (StructuredTextDocument): Inherits from
132 :     TextDocument.
133 :    
134 : feinerer 748 2007-05-04 Ingo Feinerer <h0125130@wu-wien.ac.at>
135 :    
136 :     * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
137 :     on sparse matrices as proposed by Martin Maechler.
138 :    
139 : feinerer 747 2007-04-27 Ingo Feinerer <h0125130@wu-wien.ac.at>
140 :    
141 :     * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
142 :     \pkg{filehash} version makes them deprecated.
143 :    
144 : feinerer 744 2007-04-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
145 :    
146 :     * R/termdocmatrix.R (textvector): Stemming is now performed before
147 :     erasing stopwords.
148 :     (weightMatrix): Adapted to handle sparse matrices.
149 :     (TermDocMatrix): Sparse matrix is now efficiently built by
150 :     direct stepwise insertion of row values into it.
151 :    
152 : feinerer 741 2007-04-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
153 :    
154 :     * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
155 :     due to ongoing problems. For our purposes the latter is as useful
156 :     as the replaced package.
157 :    
158 : feinerer 738 2007-04-20 Ingo Feinerer <h0125130@wu-wien.ac.at>
159 :    
160 :     * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.
161 :    
162 :     * man/TermDocMatrix.Rd: Remove deprecated \code{language} argument.
163 :    
164 : feinerer 737 2007-04-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
165 :    
166 :     * R/resolve.R (resolveISOCode): Added ISO 639-1 codes for
167 :     languages with available stopwords.
168 :    
169 : feinerer 736 2007-04-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
170 :    
171 :     * inst/doc/tm.Rnw: Minor corrections in the vignette.
172 :    
173 : feinerer 731 2007-04-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
174 :    
175 : feinerer 732 * DESCRIPTION: Update to version 0.2, since a lot of new features
176 :     have been integrated.
177 : feinerer 731
178 : feinerer 732 * inst/stopwords: Updated existing stopwords and added stopwords
179 :     for various other languages.
180 :    
181 : feinerer 729 2007-04-10 Ingo Feinerer <h0125130@wu-wien.ac.at>
182 :    
183 : feinerer 730 * man/: Updated documentation.
184 :    
185 : feinerer 729 * Work/testDb.R: Script to test database stuff.
186 :    
187 :     * R/: Fixed various database related bugs. Seems to be rather
188 :     useable now, i.e., consider as alpha status for now.
189 :    
190 : feinerer 727 2007-04-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
191 :    
192 :     * R/: Fixed some bugs related to database support.
193 :    
194 : feinerer 726 2007-04-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
195 :    
196 :     * man/: Added a lot of examples to the manuals.
197 :    
198 : feinerer 725 2007-04-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
199 :    
200 :     * man/: Updated parts of the documentation.
201 :    
202 :     * R/textdoccol.R (asPlain): Added conversion from newsgroup
203 :     documents to plain text documents.
204 :    
205 : feinerer 722 2007-04-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
206 :    
207 : feinerer 724 * R/textdoccol.R: Finished experimental database support. Not yet
208 :     intensively tested.
209 :    
210 : feinerer 723 * R/source.R: Now each source has a default reader.
211 :    
212 : feinerer 722 * R/reader.R: \code{FunctionGenerator} is now an attribute, not a
213 :     class anymore.
214 :    
215 :     * R/plaintextdoc.R: Custom show method for plain text documents.
216 :    
217 :     * R/aobjects.R: Added a class for structured text documents.
218 :    
219 :     * R/reader.R: Replaced remaining \code{parser} occurrences with
220 :     \code{reader}.
221 :    
222 :     * R/textdoccol.R (summary): Indent tags.
223 :    
224 : feinerer 725 * R/textdoccol.R (removePunctuation): Transform method to remove
225 : feinerer 722 punctuation marks.
226 :    
227 : feinerer 721 2007-03-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
228 :    
229 :     * R/textdoccol.R (sFilter): Simplified sFilter significantly by
230 :     using prescindMeta().
231 :    
232 : feinerer 719 2007-03-18 Ingo Feinerer <h0125130@wu-wien.ac.at>
233 :    
234 :     * R/textdoccol.R: Improved database support.
235 :    
236 : feinerer 717 2007-03-16 Ingo Feinerer <h0125130@wu-wien.ac.at>
237 :    
238 : feinerer 718 * R/termdocmatrix.R (TermDocMatrix): Uses sparse matrices.
239 :    
240 : feinerer 717 * R/resolve.R (resolveISOcode): Extracts the language from a ISO
241 :     language code.
242 :    
243 :     * R/textdoccol.R (TextDocCol): Refactored several parser arguments
244 :     into parserControl argument.
245 :    
246 :     * R/aobjects.R (TextDocument): Introduced the "Language" slot.
247 :    
248 : feinerer 713 2007-03-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
249 :    
250 : feinerer 715 * Work/tmDataSetup.R: The datasets acq and crude can now be
251 :     created on the fly.
252 :    
253 : feinerer 713 * R/stopwords.R: Introduced a function returning the stopwords for
254 :     a given language (English, German and French at the moment)
255 :    
256 :     * R/textdoccol.R (stemDoc): Stemming uses Rstem if available,
257 :     otherwise falls back to Snowball package.
258 :    
259 : feinerer 711 2007-01-30 Ingo Feinerer <h0125130@wu-wien.ac.at>
260 :    
261 :     * man/dissimilarity-methods.Rd: Make clear that any method offered
262 :     by "dists" from package "cba" can be used.
263 :    
264 : feinerer 708 2007-01-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
265 :    
266 : feinerer 710 * inst/doc/tm.Rnw: Fixed quotes-appearing-as-boxes-bug according
267 :     to Kurt's latex suggestion. Removed points and underscores in
268 :     variable names for consistent naming.
269 :    
270 : feinerer 708 * DESCRIPTION: Update to version 0.1-2.
271 :    
272 :     * man/TextRepository.Rd: Fixed bug in documentation.
273 :    
274 : feinerer 704 2007-01-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
275 :    
276 :     * DESCRIPTION: Update to version 0.1-1.
277 :    
278 : feinerer 702 2007-01-09 Ingo Feinerer <h0125130@wu-wien.ac.at>
279 :    
280 :     * R/textdoccol.R (stemDoc): Use Rstem::wordStem instead of
281 :     wordStem.
282 :    
283 : feinerer 698 2007-01-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
284 :    
285 :     * R/: Changes due to Kurt's review.
286 :    
287 : feinerer 694 2006-12-31 Ingo Feinerer <h0125130@wu-wien.ac.at>
288 :    
289 :     * R/: Implemented improvements based upon comments by David
290 :     Meyer.
291 :    
292 : feinerer 691 2006-12-17 Ingo Feinerer <h0125130@wu-wien.ac.at>
293 :    
294 :     * inst/doc/: Rewrote vignette.
295 :    
296 :     * man/: Improved documentation.
297 :    
298 : feinerer 690 2006-12-16 Ingo Feinerer <h0125130@wu-wien.ac.at>
299 :    
300 :     * man/: Updated documentation.
301 :    
302 :     * DESCRIPTION: Changed package name to "tm". Updated version to
303 :     0.1 for first CRAN release.
304 :    
305 :     * inst/texts/gmane.comp.lang.r.general.mbox: mbox Gmane R mailing
306 :     list archive example.
307 :    
308 :     * inst/texts/gmane.comp.lang.r.gr.rdf: RSS Gmane R mailing list
309 :     archive example.
310 :    
311 :     * R/preprocess.R (convert_mbox_eml): A simple e-mail converter
312 :     from (several mails per box) mbox format to (single mail per file)
313 :     eml format.
314 :    
315 : feinerer 689 2006-12-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
316 :    
317 :     * data/crude.rda: Rebuilt.
318 :    
319 :     * data/acq.rda: Rebuilt.
320 :    
321 :     * R/reader.R: Factored out reader and parser methods from
322 :     textdoccol.R.
323 :    
324 :     * R/source.R: Factored out Source methods from aobjects.R and
325 :     textdoccol.R.
326 :     (GmaneRSource): Encapsulates Gmane R mailing list archive RSS
327 :     feeds.
328 :    
329 :     * R/textdoccol.R (DirSource): Added support for recursive
330 :     traversal of directories.
331 :    
332 :     2006-12-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
333 :    
334 :     * R/textdoccol.R ([[): Loads the document corpus automatically
335 :     into memory upon access.
336 :     (tm_transform, tm_filter): Removed several checks whether the
337 :     document is already loaded ([[ ensures this now).
338 :     (gmane_r_reader): Reader for RSS feeds as provided by the Gmane R
339 :     mailing list archive.
340 :    
341 :     2006-12-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
342 :    
343 :     * R/aobjects.R (TextDocument): Is now a virtual class.
344 :     (Source): Is now a virtual class.
345 :    
346 :     2006-12-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
347 :    
348 :     * R/textdoccol.R (c): Support for an arbitrary number of document
349 :     collections.
350 :    
351 : feinerer 77 2006-11-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
352 :    
353 :     * R/textrepo.R: Updated TextRepository (constructor), append_elem,
354 :     append_meta and remove_meta.
355 :    
356 :     * R/textdoccol.R: Removed modify_metadata method.
357 :    
358 :     * R/textrepo.R: Removed modify_metadata method.
359 :    
360 :     * R/textdoccol.R (remove_meta): Supports removal of document
361 :     collection metadata and document (= in data frame) metadata.
362 :    
363 : feinerer 76 2006-11-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
364 :    
365 :     * R/textdoccol.R (append_doc): Bug fix for handling empty metadata.
366 :    
367 :     * data/crude.rda: Rebuilt.
368 :    
369 :     * data/acq.rda: Rebuilt.
370 :    
371 :     * inst/doc/textmin.Rnw: Updated vignette to reflect code changes.
372 :    
373 :     * R/textdoccol.R ([): Bug fix for subsetting a document
374 :     collection's data frame.
375 :    
376 : feinerer 75 2006-11-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
377 :    
378 :     * R/textdoccol.R: Bug fixes in s_filter. Added full query support
379 :     to s_filter.
380 :    
381 :     * R/textdoccol.R: Local text documents' metadata can now be copied
382 :     to a document collection's data frame with prescind_meta.
383 :    
384 : feinerer 73 2006-11-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
385 :    
386 : feinerer 74 * R/: Text documents' slot metadata is now accessible in s_filter.
387 :    
388 : feinerer 73 * R/: Rewrote s_filter function (has still some restrictions).
389 :    
390 : feinerer 72 2006-11-20 Ingo Feinerer <h0125130@wu-wien.ac.at>
391 :    
392 :     * R/: Various fixes in handling metadata.
393 :    
394 :     * R/: Added update mechanism for text document collections.
395 :    
396 : feinerer 71 2006-11-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
397 :    
398 :     * R/: Merging of document collections now creates a binary tree
399 :     for reconstructing merged document collections.
400 :    
401 :     * R/: Redesign of metadata for document collections.
402 :    
403 : feinerer 70 2006-11-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
404 :    
405 :     * R/: Messages now use \code{ngettext}.
406 :    
407 : feinerer 69 2006-11-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
408 :    
409 :     * R/: Added functions for modifying and removing metadata.
410 :    
411 : feinerer 67 2006-11-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
412 :    
413 :     * man/: Updated some documentation.
414 :    
415 :     * R/: Corrected some connection issues.
416 :    
417 :     * inst/doc: Worked on the vignette.
418 :    
419 : feinerer 65 2006-10-31 Ingo Feinerer <h0125130@wu-wien.ac.at>
420 :    
421 : feinerer 66 * inst/: Added texts and started vignette.
422 :    
423 : feinerer 65 * R/: Final changes based upon David's comments.
424 :    
425 : feinerer 64 2006-10-29 Ingo Feinerer <h0125130@wu-wien.ac.at>
426 :    
427 :     * NAMESPACE: Corrected exports (generic methods need exportMethods
428 :     directives!).
429 :    
430 : feinerer 63 2006-10-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
431 :    
432 :     * R/: Modified the TextDocCol constructur and various parsers. It
433 :     is now modular and supports various file formats via plugins (see
434 :     the new "Source" class).
435 :    
436 : feinerer 62 2006-10-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
437 :    
438 :     * man/: Revised documentation after previous code changes.
439 :    
440 : feinerer 61 2006-10-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
441 :    
442 :     * R/: Remaining changes as discussed with David.
443 :    
444 : feinerer 60 2006-10-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
445 :    
446 :     * R/: Some changes as suggested by David. The rest will follow
447 :     within the next days.
448 :    
449 : feinerer 59 2006-09-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
450 :    
451 :     * man/: Finished documentation.
452 :    
453 : feinerer 58 2006-09-25 Ingo Feinerer <h0125130@wu-wien.ac.at>
454 :    
455 :     * man/: Wrote some documentation.
456 :    
457 : feinerer 56 2006-09-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
458 :    
459 :     * R/: Further syntactic sugar in form of additional assignment and
460 :     accessor methods.
461 :    
462 : feinerer 54 2006-09-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
463 :    
464 :     * R/: Syntactic sugar in form of "length", "show" and "summary"
465 : feinerer 56 operators.
466 : feinerer 54
467 : feinerer 53 2006-08-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
468 :    
469 :     * R/: Diverse updates. Mainly on default operators ("[" or "c")
470 :     and dissimilarities.
471 :    
472 : feinerer 52 2006-08-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
473 :    
474 :     * R/: Added similarity functions.
475 :    
476 :     * data/: Added english stopwords.
477 :    
478 : feinerer 50 2006-08-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
479 :    
480 : feinerer 51 * data/: Examples compiled for new features
481 :    
482 :     * R/: Changes due to new structure.
483 :    
484 : feinerer 50 * NAMESPACE: Corrected namespace to reflect new structure.
485 :    
486 :     * R/termdocmatrix.R: Adapted for new naming scheme.
487 :    
488 : feinerer 49 2006-08-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
489 :    
490 :     * R/textdoccol.R: Adapted code for new class structure. Wrote
491 :     several transform and filter functions operating on text document
492 :     collections (alias text document databases).
493 :    
494 :     * R/aobjects.R: Adapted class structure with inheritance,
495 :     repositories and additional meta data. Loading files on demand is
496 :     now possible.
497 :    
498 : feinerer 48 2006-07-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
499 :    
500 :     * R/: Some cosmetic cleanups.
501 :    
502 :     * inst/: Removed vignette on clustering. That and much more is now
503 :     described in the JSS paper on text mining. Based upon that
504 :     article an elaborated vignette will be incorporated in the future.
505 :    
506 : feinerer 42 2006-07-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
507 :    
508 :     * R/: Updated generic S4 methods to comply with signature changes
509 :     in newer versions of R (> 2.3)
510 :    
511 : feinerer 41 2006-03-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
512 :    
513 :     * ext/R/importRIS.R: Automatic RIS import is now possible.
514 :    
515 : feinerer 40 2006-02-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
516 :    
517 :     * R/textdoccol.R: Added RIS HTML input format.
518 :    
519 : feinerer 39 2006-01-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
520 :    
521 :     * R/textdoccol.R: Removed bug that caused invalid text document
522 :     collections when handling many input files.
523 :    
524 : feinerer 36 2006-01-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
525 :    
526 : feinerer 37 * R/textdoccol.R: Restructured and extended file import
527 :     mechanism.
528 :    
529 : feinerer 36 * inst/doc/clustering.Rnw: Adapted vignette for use with
530 :     ReutNews.rda
531 :    
532 :     * man/ReutNews.Rd: Documentation for ReutNews.rda
533 :    
534 :     * data/ReutNews.rda: A tiny Reuters21578 example data set.
535 :    
536 : feinerer 34 2005-12-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
537 :    
538 :     * inst/doc/clustering.Rnw: Wrote a small vignette to present the
539 :     clustering facilities of this package.
540 :    
541 : feinerer 33 2005-12-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
542 :    
543 :     * R/aobjects.R: Changed package document structure to avoid class
544 :     dependency problems.
545 :    
546 : feinerer 28 2005-12-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
547 :    
548 : feinerer 29 * Wrote a script for the ModLewis Split for the Reuters-21578 XML
549 :     data set.
550 :    
551 : feinerer 28 * Finished documentation and reordered directory structure. Now "R
552 :     CMD check textmin" works without errors.
553 :    
554 : feinerer 27 2005-12-04 Ingo Feinerer <h0125130@wu-wien.ac.at>
555 :    
556 :     * src/: Various splits can now be easily created for the
557 :     Reuters21578 data set.
558 :    
559 : feinerer 26 2005-12-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
560 :    
561 :     * Updated documentation
562 :    
563 : feinerer 25 2005-11-30 Ingo Feinerer <h0125130@wu-wien.ac.at>
564 :    
565 :     * Wrote R documentation for some classes and methods.
566 :    
567 : feinerer 21 2005-11-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
568 :    
569 : feinerer 22 * R/textdoccol.R: Constructor of textdoccol allows import of CSV
570 :     files. See the questionnaire data/Umfrage.csv for such an example.
571 : feinerer 23 We are now able to import files in Reuters-21578 XML format.
572 : feinerer 22
573 : feinerer 21 * Changed class interfaces in various files. Weighting of the text
574 :     matrix is now possible.
575 :    
576 : feinerer 20 2005-11-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
577 :    
578 :     * R/textdoccol.R: One can build term-document matrices if
579 :     nessecary (with buildTDM(...)) and fill the field tdm from a text
580 :     document collection with it.
581 :    
582 :     * R/textmatrix.R: Wrote S4 class for term-document matrices.
583 :    
584 : feinerer 19 2005-11-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
585 :    
586 :     * R/textdoccol.R: We now can read in a whole XML file with several
587 :     news items.
588 :    
589 : feinerer 17 2005-11-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
590 :    
591 :     * R/textdoccol.R: Set up an S4 class for a collection of text
592 :     documents. A first attempt to read in XML input (like the RCV1
593 :     set) was made.
594 :    
595 :     * R/textdocument.R: Set up an S4 class for text documents. Wrote
596 :     some accessor functions.
597 :    
598 :     * data/newsitem.xml: Added this XML file for testing purposes. It
599 :     contains a single news item from the Reuters Corpus Volume 1
600 :     (RCV1) XML set.
601 :    
602 : feinerer 16 2005-10-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
603 :    
604 :     * R/textmatrix.R (textmatrix): Removed the transpose of the original
605 :     textmatrix as k-means clustering provided by R (kmeans) now works on
606 :     this textmatrix. The result is a k-means text clustering with a
607 :     similarity measure based upon word frequences.
608 :    
609 :     2005-10-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
610 :    
611 :     * R/textmatrix.R: Adapted the preprocessing code from the R
612 :     package "lsa" written by Fridolin Wild to build a document text matrix.
613 :    
614 :     2005-10-02 Ingo Feinerer <h0125130@wu-wien.ac.at>
615 :    
616 :     * Set up the R Text Mining Package infrastructure.

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