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Annotation of /trunk/tm/ChangeLog

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Revision 795 - (view) (download)

1 : feinerer 795 2007-10-27 Ingo Feinerer <h0125130@wu-wien.ac.at>
2 :    
3 :     * man/: Updated documentation.
4 :    
5 : feinerer 790 2007-10-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
6 :    
7 : feinerer 793 * R/complete.R (completeStems): Completes (heuristically) word
8 :     stems.
9 :    
10 : feinerer 790 * R/termdocmatrix.R (TermDocMatrix2): New modular
11 :     constructor.
12 :    
13 :     * NAMESPACE: Exported termFreq.
14 :    
15 : feinerer 789 2007-10-16 Ingo Feinerer <h0125130@wu-wien.ac.at>
16 :    
17 :     * R/reader.R (readDOC): Added MS Word reader (using antiword).
18 :    
19 : feinerer 788 2007-10-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
20 :    
21 :     * R/weight.R: Weighting functions for TermDocMatrix.
22 :    
23 : feinerer 785 2007-10-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
24 :    
25 :     * R/termdocmatrix.R (dimnames, colnames, rownames): Wrapper
26 :     functions for accessing dimension, column, and row names.
27 :    
28 :     * R/plot.R (plot.TermDocMatrix): Plot correlations between terms.
29 :    
30 : feinerer 779 2007-09-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
31 :    
32 :     * man/removePunctuation.Rd: Added documentation. Function also exported to NAMESPACE.
33 :    
34 : feinerer 777 2007-08-28 Ingo Feinerer <h0125130@wu-wien.ac.at>
35 :    
36 :     * R/fungen.R: Use S4 class for function generators instead of S3 attributes.
37 :    
38 : feinerer 776 2007-07-29 Ingo Feinerer <h0125130@wu-wien.ac.at>
39 :    
40 :     * R/reader.R (readPDF): Removed manual checks for pdftotext and
41 :     pdfinfo. The system call gives a warning anyway.
42 :    
43 : feinerer 775 2007-07-28 Ingo Feinerer <h0125130@wu-wien.ac.at>
44 :    
45 :     * R/textdoccol.R (asPlain): Conversion from
46 :     StructuredTextDocuments to PlainTextDocuments.
47 :    
48 : feinerer 773 2007-07-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
49 :    
50 : feinerer 774 * R/termdocmatrix.R: Added convenience methods ("[", nrow, ncol)
51 :     for accessing term-document matrices.
52 :    
53 : feinerer 773 * inst/doc/tm.Rnw: readPDF is only called if pdftotext and pdfinfo
54 :     are installed.
55 :    
56 : feinerer 770 2007-07-17 Ingo Feinerer <h0125130@wu-wien.ac.at>
57 :    
58 :     * R/termdocmatrix.R (TermDocMatrix): Improved efficiency. Kudos to
59 :     Christian Buchta.
60 :    
61 : feinerer 768 2007-07-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
62 :    
63 :     * inst/doc/tm.Rnw: Update vignette (readPDF, readHTML, preprocessReut21578XML).
64 :    
65 : feinerer 766 2007-07-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
66 :    
67 : feinerer 767 * R/reader.R (readHTML): Added very simple HTML reader to obtain StructuredTextDocuments.
68 :    
69 : feinerer 766 * R/reader.R (readPDF): Added PDF reader.
70 :    
71 : feinerer 765 2007-07-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
72 :    
73 :     * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
74 :    
75 :     * inst/stopwords/english.dat: Added the term "yes" to stopwords.
76 :    
77 :     * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
78 :    
79 :     * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
80 :    
81 : feinerer 763 2007-07-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
82 :    
83 :     * R/distmeasure.R (dissimilarity): Replaced dists call from
84 :     package cba by new dist call from package proxy.
85 :    
86 : feinerer 761 2007-07-10 Ingo Feinerer <h0125130@wu-wien.ac.at>
87 :    
88 :     * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
89 :    
90 : feinerer 760 2007-06-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
91 :    
92 :     * R/termdocmatrix.R: require() uses the quietly option to suppress
93 :     loading messages.
94 :    
95 : feinerer 758 2007-06-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
96 :    
97 :     * R/dictionary.R: Added dictionary support.
98 :    
99 : feinerer 757 2007-06-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
100 :    
101 :     * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
102 :     documents. This simplifies some functions, e.g., asPlain.
103 :    
104 : feinerer 756 2007-06-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
105 :    
106 :     * inst/doc/tm.Rnw: Fixed some typos in vignette.
107 :    
108 : feinerer 755 2007-06-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
109 :    
110 :     * R/textdoccol.R (replaceWords): Added method to replace a set of
111 :     words by a single word. Useful for synonyms.
112 :    
113 : feinerer 754 2007-05-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
114 :    
115 :     * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
116 :    
117 : feinerer 752 2007-05-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
118 :    
119 :     * R/termdocmatrix.R (textvector): Small fix for dealing with empty
120 :     vectors. Thanks to Ariel Maguyon for his error report.
121 :     (removeSparseTerms): New function to remove columns from a
122 :     term-document matrix exceeding a sparse factor.
123 :    
124 : feinerer 751 2007-05-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
125 :    
126 :     * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
127 :    
128 : feinerer 750 2007-05-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
129 :    
130 :     * man/sFilter.Rd: Corrected documentation on statement format (use
131 :     '==' instead of '=').
132 :    
133 : feinerer 749 2007-05-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
134 :    
135 :     * R/aobjects.R (StructuredTextDocument): Inherits from
136 :     TextDocument.
137 :    
138 : feinerer 748 2007-05-04 Ingo Feinerer <h0125130@wu-wien.ac.at>
139 :    
140 :     * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
141 :     on sparse matrices as proposed by Martin Maechler.
142 :    
143 : feinerer 747 2007-04-27 Ingo Feinerer <h0125130@wu-wien.ac.at>
144 :    
145 :     * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
146 :     \pkg{filehash} version makes them deprecated.
147 :    
148 : feinerer 744 2007-04-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
149 :    
150 :     * R/termdocmatrix.R (textvector): Stemming is now performed before
151 :     erasing stopwords.
152 :     (weightMatrix): Adapted to handle sparse matrices.
153 :     (TermDocMatrix): Sparse matrix is now efficiently built by
154 :     direct stepwise insertion of row values into it.
155 :    
156 : feinerer 741 2007-04-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
157 :    
158 :     * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
159 :     due to ongoing problems. For our purposes the latter is as useful
160 :     as the replaced package.
161 :    
162 : feinerer 738 2007-04-20 Ingo Feinerer <h0125130@wu-wien.ac.at>
163 :    
164 :     * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.
165 :    
166 :     * man/TermDocMatrix.Rd: Remove deprecated \code{language} argument.
167 :    
168 : feinerer 737 2007-04-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
169 :    
170 :     * R/resolve.R (resolveISOCode): Added ISO 639-1 codes for
171 :     languages with available stopwords.
172 :    
173 : feinerer 736 2007-04-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
174 :    
175 :     * inst/doc/tm.Rnw: Minor corrections in the vignette.
176 :    
177 : feinerer 731 2007-04-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
178 :    
179 : feinerer 732 * DESCRIPTION: Update to version 0.2, since a lot of new features
180 :     have been integrated.
181 : feinerer 731
182 : feinerer 732 * inst/stopwords: Updated existing stopwords and added stopwords
183 :     for various other languages.
184 :    
185 : feinerer 729 2007-04-10 Ingo Feinerer <h0125130@wu-wien.ac.at>
186 :    
187 : feinerer 730 * man/: Updated documentation.
188 :    
189 : feinerer 729 * Work/testDb.R: Script to test database stuff.
190 :    
191 :     * R/: Fixed various database related bugs. Seems to be rather
192 :     useable now, i.e., consider as alpha status for now.
193 :    
194 : feinerer 727 2007-04-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
195 :    
196 :     * R/: Fixed some bugs related to database support.
197 :    
198 : feinerer 726 2007-04-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
199 :    
200 :     * man/: Added a lot of examples to the manuals.
201 :    
202 : feinerer 725 2007-04-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
203 :    
204 :     * man/: Updated parts of the documentation.
205 :    
206 :     * R/textdoccol.R (asPlain): Added conversion from newsgroup
207 :     documents to plain text documents.
208 :    
209 : feinerer 722 2007-04-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
210 :    
211 : feinerer 724 * R/textdoccol.R: Finished experimental database support. Not yet
212 :     intensively tested.
213 :    
214 : feinerer 723 * R/source.R: Now each source has a default reader.
215 :    
216 : feinerer 722 * R/reader.R: \code{FunctionGenerator} is now an attribute, not a
217 :     class anymore.
218 :    
219 :     * R/plaintextdoc.R: Custom show method for plain text documents.
220 :    
221 :     * R/aobjects.R: Added a class for structured text documents.
222 :    
223 :     * R/reader.R: Replaced remaining \code{parser} occurrences with
224 :     \code{reader}.
225 :    
226 :     * R/textdoccol.R (summary): Indent tags.
227 :    
228 : feinerer 725 * R/textdoccol.R (removePunctuation): Transform method to remove
229 : feinerer 722 punctuation marks.
230 :    
231 : feinerer 721 2007-03-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
232 :    
233 :     * R/textdoccol.R (sFilter): Simplified sFilter significantly by
234 :     using prescindMeta().
235 :    
236 : feinerer 719 2007-03-18 Ingo Feinerer <h0125130@wu-wien.ac.at>
237 :    
238 :     * R/textdoccol.R: Improved database support.
239 :    
240 : feinerer 717 2007-03-16 Ingo Feinerer <h0125130@wu-wien.ac.at>
241 :    
242 : feinerer 718 * R/termdocmatrix.R (TermDocMatrix): Uses sparse matrices.
243 :    
244 : feinerer 717 * R/resolve.R (resolveISOcode): Extracts the language from a ISO
245 :     language code.
246 :    
247 :     * R/textdoccol.R (TextDocCol): Refactored several parser arguments
248 :     into parserControl argument.
249 :    
250 :     * R/aobjects.R (TextDocument): Introduced the "Language" slot.
251 :    
252 : feinerer 713 2007-03-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
253 :    
254 : feinerer 715 * Work/tmDataSetup.R: The datasets acq and crude can now be
255 :     created on the fly.
256 :    
257 : feinerer 713 * R/stopwords.R: Introduced a function returning the stopwords for
258 :     a given language (English, German and French at the moment)
259 :    
260 :     * R/textdoccol.R (stemDoc): Stemming uses Rstem if available,
261 :     otherwise falls back to Snowball package.
262 :    
263 : feinerer 711 2007-01-30 Ingo Feinerer <h0125130@wu-wien.ac.at>
264 :    
265 :     * man/dissimilarity-methods.Rd: Make clear that any method offered
266 :     by "dists" from package "cba" can be used.
267 :    
268 : feinerer 708 2007-01-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
269 :    
270 : feinerer 710 * inst/doc/tm.Rnw: Fixed quotes-appearing-as-boxes-bug according
271 :     to Kurt's latex suggestion. Removed points and underscores in
272 :     variable names for consistent naming.
273 :    
274 : feinerer 708 * DESCRIPTION: Update to version 0.1-2.
275 :    
276 :     * man/TextRepository.Rd: Fixed bug in documentation.
277 :    
278 : feinerer 704 2007-01-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
279 :    
280 :     * DESCRIPTION: Update to version 0.1-1.
281 :    
282 : feinerer 702 2007-01-09 Ingo Feinerer <h0125130@wu-wien.ac.at>
283 :    
284 :     * R/textdoccol.R (stemDoc): Use Rstem::wordStem instead of
285 :     wordStem.
286 :    
287 : feinerer 698 2007-01-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
288 :    
289 :     * R/: Changes due to Kurt's review.
290 :    
291 : feinerer 694 2006-12-31 Ingo Feinerer <h0125130@wu-wien.ac.at>
292 :    
293 :     * R/: Implemented improvements based upon comments by David
294 :     Meyer.
295 :    
296 : feinerer 691 2006-12-17 Ingo Feinerer <h0125130@wu-wien.ac.at>
297 :    
298 :     * inst/doc/: Rewrote vignette.
299 :    
300 :     * man/: Improved documentation.
301 :    
302 : feinerer 690 2006-12-16 Ingo Feinerer <h0125130@wu-wien.ac.at>
303 :    
304 :     * man/: Updated documentation.
305 :    
306 :     * DESCRIPTION: Changed package name to "tm". Updated version to
307 :     0.1 for first CRAN release.
308 :    
309 :     * inst/texts/gmane.comp.lang.r.general.mbox: mbox Gmane R mailing
310 :     list archive example.
311 :    
312 :     * inst/texts/gmane.comp.lang.r.gr.rdf: RSS Gmane R mailing list
313 :     archive example.
314 :    
315 :     * R/preprocess.R (convert_mbox_eml): A simple e-mail converter
316 :     from (several mails per box) mbox format to (single mail per file)
317 :     eml format.
318 :    
319 : feinerer 689 2006-12-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
320 :    
321 :     * data/crude.rda: Rebuilt.
322 :    
323 :     * data/acq.rda: Rebuilt.
324 :    
325 :     * R/reader.R: Factored out reader and parser methods from
326 :     textdoccol.R.
327 :    
328 :     * R/source.R: Factored out Source methods from aobjects.R and
329 :     textdoccol.R.
330 :     (GmaneRSource): Encapsulates Gmane R mailing list archive RSS
331 :     feeds.
332 :    
333 :     * R/textdoccol.R (DirSource): Added support for recursive
334 :     traversal of directories.
335 :    
336 :     2006-12-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
337 :    
338 :     * R/textdoccol.R ([[): Loads the document corpus automatically
339 :     into memory upon access.
340 :     (tm_transform, tm_filter): Removed several checks whether the
341 :     document is already loaded ([[ ensures this now).
342 :     (gmane_r_reader): Reader for RSS feeds as provided by the Gmane R
343 :     mailing list archive.
344 :    
345 :     2006-12-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
346 :    
347 :     * R/aobjects.R (TextDocument): Is now a virtual class.
348 :     (Source): Is now a virtual class.
349 :    
350 :     2006-12-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
351 :    
352 :     * R/textdoccol.R (c): Support for an arbitrary number of document
353 :     collections.
354 :    
355 : feinerer 77 2006-11-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
356 :    
357 :     * R/textrepo.R: Updated TextRepository (constructor), append_elem,
358 :     append_meta and remove_meta.
359 :    
360 :     * R/textdoccol.R: Removed modify_metadata method.
361 :    
362 :     * R/textrepo.R: Removed modify_metadata method.
363 :    
364 :     * R/textdoccol.R (remove_meta): Supports removal of document
365 :     collection metadata and document (= in data frame) metadata.
366 :    
367 : feinerer 76 2006-11-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
368 :    
369 :     * R/textdoccol.R (append_doc): Bug fix for handling empty metadata.
370 :    
371 :     * data/crude.rda: Rebuilt.
372 :    
373 :     * data/acq.rda: Rebuilt.
374 :    
375 :     * inst/doc/textmin.Rnw: Updated vignette to reflect code changes.
376 :    
377 :     * R/textdoccol.R ([): Bug fix for subsetting a document
378 :     collection's data frame.
379 :    
380 : feinerer 75 2006-11-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
381 :    
382 :     * R/textdoccol.R: Bug fixes in s_filter. Added full query support
383 :     to s_filter.
384 :    
385 :     * R/textdoccol.R: Local text documents' metadata can now be copied
386 :     to a document collection's data frame with prescind_meta.
387 :    
388 : feinerer 73 2006-11-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
389 :    
390 : feinerer 74 * R/: Text documents' slot metadata is now accessible in s_filter.
391 :    
392 : feinerer 73 * R/: Rewrote s_filter function (has still some restrictions).
393 :    
394 : feinerer 72 2006-11-20 Ingo Feinerer <h0125130@wu-wien.ac.at>
395 :    
396 :     * R/: Various fixes in handling metadata.
397 :    
398 :     * R/: Added update mechanism for text document collections.
399 :    
400 : feinerer 71 2006-11-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
401 :    
402 :     * R/: Merging of document collections now creates a binary tree
403 :     for reconstructing merged document collections.
404 :    
405 :     * R/: Redesign of metadata for document collections.
406 :    
407 : feinerer 70 2006-11-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
408 :    
409 :     * R/: Messages now use \code{ngettext}.
410 :    
411 : feinerer 69 2006-11-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
412 :    
413 :     * R/: Added functions for modifying and removing metadata.
414 :    
415 : feinerer 67 2006-11-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
416 :    
417 :     * man/: Updated some documentation.
418 :    
419 :     * R/: Corrected some connection issues.
420 :    
421 :     * inst/doc: Worked on the vignette.
422 :    
423 : feinerer 65 2006-10-31 Ingo Feinerer <h0125130@wu-wien.ac.at>
424 :    
425 : feinerer 66 * inst/: Added texts and started vignette.
426 :    
427 : feinerer 65 * R/: Final changes based upon David's comments.
428 :    
429 : feinerer 64 2006-10-29 Ingo Feinerer <h0125130@wu-wien.ac.at>
430 :    
431 :     * NAMESPACE: Corrected exports (generic methods need exportMethods
432 :     directives!).
433 :    
434 : feinerer 63 2006-10-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
435 :    
436 :     * R/: Modified the TextDocCol constructur and various parsers. It
437 :     is now modular and supports various file formats via plugins (see
438 :     the new "Source" class).
439 :    
440 : feinerer 62 2006-10-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
441 :    
442 :     * man/: Revised documentation after previous code changes.
443 :    
444 : feinerer 61 2006-10-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
445 :    
446 :     * R/: Remaining changes as discussed with David.
447 :    
448 : feinerer 60 2006-10-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
449 :    
450 :     * R/: Some changes as suggested by David. The rest will follow
451 :     within the next days.
452 :    
453 : feinerer 59 2006-09-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
454 :    
455 :     * man/: Finished documentation.
456 :    
457 : feinerer 58 2006-09-25 Ingo Feinerer <h0125130@wu-wien.ac.at>
458 :    
459 :     * man/: Wrote some documentation.
460 :    
461 : feinerer 56 2006-09-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
462 :    
463 :     * R/: Further syntactic sugar in form of additional assignment and
464 :     accessor methods.
465 :    
466 : feinerer 54 2006-09-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
467 :    
468 :     * R/: Syntactic sugar in form of "length", "show" and "summary"
469 : feinerer 56 operators.
470 : feinerer 54
471 : feinerer 53 2006-08-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
472 :    
473 :     * R/: Diverse updates. Mainly on default operators ("[" or "c")
474 :     and dissimilarities.
475 :    
476 : feinerer 52 2006-08-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
477 :    
478 :     * R/: Added similarity functions.
479 :    
480 :     * data/: Added english stopwords.
481 :    
482 : feinerer 50 2006-08-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
483 :    
484 : feinerer 51 * data/: Examples compiled for new features
485 :    
486 :     * R/: Changes due to new structure.
487 :    
488 : feinerer 50 * NAMESPACE: Corrected namespace to reflect new structure.
489 :    
490 :     * R/termdocmatrix.R: Adapted for new naming scheme.
491 :    
492 : feinerer 49 2006-08-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
493 :    
494 :     * R/textdoccol.R: Adapted code for new class structure. Wrote
495 :     several transform and filter functions operating on text document
496 :     collections (alias text document databases).
497 :    
498 :     * R/aobjects.R: Adapted class structure with inheritance,
499 :     repositories and additional meta data. Loading files on demand is
500 :     now possible.
501 :    
502 : feinerer 48 2006-07-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
503 :    
504 :     * R/: Some cosmetic cleanups.
505 :    
506 :     * inst/: Removed vignette on clustering. That and much more is now
507 :     described in the JSS paper on text mining. Based upon that
508 :     article an elaborated vignette will be incorporated in the future.
509 :    
510 : feinerer 42 2006-07-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
511 :    
512 :     * R/: Updated generic S4 methods to comply with signature changes
513 :     in newer versions of R (> 2.3)
514 :    
515 : feinerer 41 2006-03-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
516 :    
517 :     * ext/R/importRIS.R: Automatic RIS import is now possible.
518 :    
519 : feinerer 40 2006-02-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
520 :    
521 :     * R/textdoccol.R: Added RIS HTML input format.
522 :    
523 : feinerer 39 2006-01-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
524 :    
525 :     * R/textdoccol.R: Removed bug that caused invalid text document
526 :     collections when handling many input files.
527 :    
528 : feinerer 36 2006-01-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
529 :    
530 : feinerer 37 * R/textdoccol.R: Restructured and extended file import
531 :     mechanism.
532 :    
533 : feinerer 36 * inst/doc/clustering.Rnw: Adapted vignette for use with
534 :     ReutNews.rda
535 :    
536 :     * man/ReutNews.Rd: Documentation for ReutNews.rda
537 :    
538 :     * data/ReutNews.rda: A tiny Reuters21578 example data set.
539 :    
540 : feinerer 34 2005-12-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
541 :    
542 :     * inst/doc/clustering.Rnw: Wrote a small vignette to present the
543 :     clustering facilities of this package.
544 :    
545 : feinerer 33 2005-12-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
546 :    
547 :     * R/aobjects.R: Changed package document structure to avoid class
548 :     dependency problems.
549 :    
550 : feinerer 28 2005-12-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
551 :    
552 : feinerer 29 * Wrote a script for the ModLewis Split for the Reuters-21578 XML
553 :     data set.
554 :    
555 : feinerer 28 * Finished documentation and reordered directory structure. Now "R
556 :     CMD check textmin" works without errors.
557 :    
558 : feinerer 27 2005-12-04 Ingo Feinerer <h0125130@wu-wien.ac.at>
559 :    
560 :     * src/: Various splits can now be easily created for the
561 :     Reuters21578 data set.
562 :    
563 : feinerer 26 2005-12-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
564 :    
565 :     * Updated documentation
566 :    
567 : feinerer 25 2005-11-30 Ingo Feinerer <h0125130@wu-wien.ac.at>
568 :    
569 :     * Wrote R documentation for some classes and methods.
570 :    
571 : feinerer 21 2005-11-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
572 :    
573 : feinerer 22 * R/textdoccol.R: Constructor of textdoccol allows import of CSV
574 :     files. See the questionnaire data/Umfrage.csv for such an example.
575 : feinerer 23 We are now able to import files in Reuters-21578 XML format.
576 : feinerer 22
577 : feinerer 21 * Changed class interfaces in various files. Weighting of the text
578 :     matrix is now possible.
579 :    
580 : feinerer 20 2005-11-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
581 :    
582 :     * R/textdoccol.R: One can build term-document matrices if
583 :     nessecary (with buildTDM(...)) and fill the field tdm from a text
584 :     document collection with it.
585 :    
586 :     * R/textmatrix.R: Wrote S4 class for term-document matrices.
587 :    
588 : feinerer 19 2005-11-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
589 :    
590 :     * R/textdoccol.R: We now can read in a whole XML file with several
591 :     news items.
592 :    
593 : feinerer 17 2005-11-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
594 :    
595 :     * R/textdoccol.R: Set up an S4 class for a collection of text
596 :     documents. A first attempt to read in XML input (like the RCV1
597 :     set) was made.
598 :    
599 :     * R/textdocument.R: Set up an S4 class for text documents. Wrote
600 :     some accessor functions.
601 :    
602 :     * data/newsitem.xml: Added this XML file for testing purposes. It
603 :     contains a single news item from the Reuters Corpus Volume 1
604 :     (RCV1) XML set.
605 :    
606 : feinerer 16 2005-10-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
607 :    
608 :     * R/textmatrix.R (textmatrix): Removed the transpose of the original
609 :     textmatrix as k-means clustering provided by R (kmeans) now works on
610 :     this textmatrix. The result is a k-means text clustering with a
611 :     similarity measure based upon word frequences.
612 :    
613 :     2005-10-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
614 :    
615 :     * R/textmatrix.R: Adapted the preprocessing code from the R
616 :     package "lsa" written by Fridolin Wild to build a document text matrix.
617 :    
618 :     2005-10-02 Ingo Feinerer <h0125130@wu-wien.ac.at>
619 :    
620 :     * Set up the R Text Mining Package infrastructure.

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