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Revision 796 - (view) (download)
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1 : feinerer 796 2007-11-06 Ingo Feinerer <feinerer@logic.at>
2 :    
3 :     * R/termdocmatrix.R (termFreq): Correct processing of empty
4 :     documents.
5 :    
6 : feinerer 795 2007-10-27 Ingo Feinerer <h0125130@wu-wien.ac.at>
7 :    
8 :     * man/: Updated documentation.
9 :    
10 : feinerer 790 2007-10-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
11 :    
12 : feinerer 793 * R/complete.R (completeStems): Completes (heuristically) word
13 :     stems.
14 :    
15 : feinerer 790 * R/termdocmatrix.R (TermDocMatrix2): New modular
16 :     constructor.
17 :    
18 :     * NAMESPACE: Exported termFreq.
19 :    
20 : feinerer 789 2007-10-16 Ingo Feinerer <h0125130@wu-wien.ac.at>
21 :    
22 :     * R/reader.R (readDOC): Added MS Word reader (using antiword).
23 :    
24 : feinerer 788 2007-10-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
25 :    
26 :     * R/weight.R: Weighting functions for TermDocMatrix.
27 :    
28 : feinerer 785 2007-10-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
29 :    
30 :     * R/termdocmatrix.R (dimnames, colnames, rownames): Wrapper
31 :     functions for accessing dimension, column, and row names.
32 :    
33 :     * R/plot.R (plot.TermDocMatrix): Plot correlations between terms.
34 :    
35 : feinerer 779 2007-09-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
36 :    
37 :     * man/removePunctuation.Rd: Added documentation. Function also exported to NAMESPACE.
38 :    
39 : feinerer 777 2007-08-28 Ingo Feinerer <h0125130@wu-wien.ac.at>
40 :    
41 :     * R/fungen.R: Use S4 class for function generators instead of S3 attributes.
42 :    
43 : feinerer 776 2007-07-29 Ingo Feinerer <h0125130@wu-wien.ac.at>
44 :    
45 :     * R/reader.R (readPDF): Removed manual checks for pdftotext and
46 :     pdfinfo. The system call gives a warning anyway.
47 :    
48 : feinerer 775 2007-07-28 Ingo Feinerer <h0125130@wu-wien.ac.at>
49 :    
50 :     * R/textdoccol.R (asPlain): Conversion from
51 :     StructuredTextDocuments to PlainTextDocuments.
52 :    
53 : feinerer 773 2007-07-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
54 :    
55 : feinerer 774 * R/termdocmatrix.R: Added convenience methods ("[", nrow, ncol)
56 :     for accessing term-document matrices.
57 :    
58 : feinerer 773 * inst/doc/tm.Rnw: readPDF is only called if pdftotext and pdfinfo
59 :     are installed.
60 :    
61 : feinerer 770 2007-07-17 Ingo Feinerer <h0125130@wu-wien.ac.at>
62 :    
63 :     * R/termdocmatrix.R (TermDocMatrix): Improved efficiency. Kudos to
64 :     Christian Buchta.
65 :    
66 : feinerer 768 2007-07-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
67 :    
68 :     * inst/doc/tm.Rnw: Update vignette (readPDF, readHTML, preprocessReut21578XML).
69 :    
70 : feinerer 766 2007-07-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
71 :    
72 : feinerer 767 * R/reader.R (readHTML): Added very simple HTML reader to obtain StructuredTextDocuments.
73 :    
74 : feinerer 766 * R/reader.R (readPDF): Added PDF reader.
75 :    
76 : feinerer 765 2007-07-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
77 :    
78 :     * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
79 :    
80 :     * inst/stopwords/english.dat: Added the term "yes" to stopwords.
81 :    
82 :     * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
83 :    
84 :     * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
85 :    
86 : feinerer 763 2007-07-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
87 :    
88 :     * R/distmeasure.R (dissimilarity): Replaced dists call from
89 :     package cba by new dist call from package proxy.
90 :    
91 : feinerer 761 2007-07-10 Ingo Feinerer <h0125130@wu-wien.ac.at>
92 :    
93 :     * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
94 :    
95 : feinerer 760 2007-06-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
96 :    
97 :     * R/termdocmatrix.R: require() uses the quietly option to suppress
98 :     loading messages.
99 :    
100 : feinerer 758 2007-06-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
101 :    
102 :     * R/dictionary.R: Added dictionary support.
103 :    
104 : feinerer 757 2007-06-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
105 :    
106 :     * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
107 :     documents. This simplifies some functions, e.g., asPlain.
108 :    
109 : feinerer 756 2007-06-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
110 :    
111 :     * inst/doc/tm.Rnw: Fixed some typos in vignette.
112 :    
113 : feinerer 755 2007-06-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
114 :    
115 :     * R/textdoccol.R (replaceWords): Added method to replace a set of
116 :     words by a single word. Useful for synonyms.
117 :    
118 : feinerer 754 2007-05-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
119 :    
120 :     * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
121 :    
122 : feinerer 752 2007-05-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
123 :    
124 :     * R/termdocmatrix.R (textvector): Small fix for dealing with empty
125 :     vectors. Thanks to Ariel Maguyon for his error report.
126 :     (removeSparseTerms): New function to remove columns from a
127 :     term-document matrix exceeding a sparse factor.
128 :    
129 : feinerer 751 2007-05-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
130 :    
131 :     * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
132 :    
133 : feinerer 750 2007-05-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
134 :    
135 :     * man/sFilter.Rd: Corrected documentation on statement format (use
136 :     '==' instead of '=').
137 :    
138 : feinerer 749 2007-05-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
139 :    
140 :     * R/aobjects.R (StructuredTextDocument): Inherits from
141 :     TextDocument.
142 :    
143 : feinerer 748 2007-05-04 Ingo Feinerer <h0125130@wu-wien.ac.at>
144 :    
145 :     * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
146 :     on sparse matrices as proposed by Martin Maechler.
147 :    
148 : feinerer 747 2007-04-27 Ingo Feinerer <h0125130@wu-wien.ac.at>
149 :    
150 :     * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
151 :     \pkg{filehash} version makes them deprecated.
152 :    
153 : feinerer 744 2007-04-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
154 :    
155 :     * R/termdocmatrix.R (textvector): Stemming is now performed before
156 :     erasing stopwords.
157 :     (weightMatrix): Adapted to handle sparse matrices.
158 :     (TermDocMatrix): Sparse matrix is now efficiently built by
159 :     direct stepwise insertion of row values into it.
160 :    
161 : feinerer 741 2007-04-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
162 :    
163 :     * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
164 :     due to ongoing problems. For our purposes the latter is as useful
165 :     as the replaced package.
166 :    
167 : feinerer 738 2007-04-20 Ingo Feinerer <h0125130@wu-wien.ac.at>
168 :    
169 :     * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.
170 :    
171 :     * man/TermDocMatrix.Rd: Remove deprecated \code{language} argument.
172 :    
173 : feinerer 737 2007-04-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
174 :    
175 :     * R/resolve.R (resolveISOCode): Added ISO 639-1 codes for
176 :     languages with available stopwords.
177 :    
178 : feinerer 736 2007-04-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
179 :    
180 :     * inst/doc/tm.Rnw: Minor corrections in the vignette.
181 :    
182 : feinerer 731 2007-04-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
183 :    
184 : feinerer 732 * DESCRIPTION: Update to version 0.2, since a lot of new features
185 :     have been integrated.
186 : feinerer 731
187 : feinerer 732 * inst/stopwords: Updated existing stopwords and added stopwords
188 :     for various other languages.
189 :    
190 : feinerer 729 2007-04-10 Ingo Feinerer <h0125130@wu-wien.ac.at>
191 :    
192 : feinerer 730 * man/: Updated documentation.
193 :    
194 : feinerer 729 * Work/testDb.R: Script to test database stuff.
195 :    
196 :     * R/: Fixed various database related bugs. Seems to be rather
197 :     useable now, i.e., consider as alpha status for now.
198 :    
199 : feinerer 727 2007-04-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
200 :    
201 :     * R/: Fixed some bugs related to database support.
202 :    
203 : feinerer 726 2007-04-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
204 :    
205 :     * man/: Added a lot of examples to the manuals.
206 :    
207 : feinerer 725 2007-04-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
208 :    
209 :     * man/: Updated parts of the documentation.
210 :    
211 :     * R/textdoccol.R (asPlain): Added conversion from newsgroup
212 :     documents to plain text documents.
213 :    
214 : feinerer 722 2007-04-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
215 :    
216 : feinerer 724 * R/textdoccol.R: Finished experimental database support. Not yet
217 :     intensively tested.
218 :    
219 : feinerer 723 * R/source.R: Now each source has a default reader.
220 :    
221 : feinerer 722 * R/reader.R: \code{FunctionGenerator} is now an attribute, not a
222 :     class anymore.
223 :    
224 :     * R/plaintextdoc.R: Custom show method for plain text documents.
225 :    
226 :     * R/aobjects.R: Added a class for structured text documents.
227 :    
228 :     * R/reader.R: Replaced remaining \code{parser} occurrences with
229 :     \code{reader}.
230 :    
231 :     * R/textdoccol.R (summary): Indent tags.
232 :    
233 : feinerer 725 * R/textdoccol.R (removePunctuation): Transform method to remove
234 : feinerer 722 punctuation marks.
235 :    
236 : feinerer 721 2007-03-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
237 :    
238 :     * R/textdoccol.R (sFilter): Simplified sFilter significantly by
239 :     using prescindMeta().
240 :    
241 : feinerer 719 2007-03-18 Ingo Feinerer <h0125130@wu-wien.ac.at>
242 :    
243 :     * R/textdoccol.R: Improved database support.
244 :    
245 : feinerer 717 2007-03-16 Ingo Feinerer <h0125130@wu-wien.ac.at>
246 :    
247 : feinerer 718 * R/termdocmatrix.R (TermDocMatrix): Uses sparse matrices.
248 :    
249 : feinerer 717 * R/resolve.R (resolveISOcode): Extracts the language from a ISO
250 :     language code.
251 :    
252 :     * R/textdoccol.R (TextDocCol): Refactored several parser arguments
253 :     into parserControl argument.
254 :    
255 :     * R/aobjects.R (TextDocument): Introduced the "Language" slot.
256 :    
257 : feinerer 713 2007-03-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
258 :    
259 : feinerer 715 * Work/tmDataSetup.R: The datasets acq and crude can now be
260 :     created on the fly.
261 :    
262 : feinerer 713 * R/stopwords.R: Introduced a function returning the stopwords for
263 :     a given language (English, German and French at the moment)
264 :    
265 :     * R/textdoccol.R (stemDoc): Stemming uses Rstem if available,
266 :     otherwise falls back to Snowball package.
267 :    
268 : feinerer 711 2007-01-30 Ingo Feinerer <h0125130@wu-wien.ac.at>
269 :    
270 :     * man/dissimilarity-methods.Rd: Make clear that any method offered
271 :     by "dists" from package "cba" can be used.
272 :    
273 : feinerer 708 2007-01-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
274 :    
275 : feinerer 710 * inst/doc/tm.Rnw: Fixed quotes-appearing-as-boxes-bug according
276 :     to Kurt's latex suggestion. Removed points and underscores in
277 :     variable names for consistent naming.
278 :    
279 : feinerer 708 * DESCRIPTION: Update to version 0.1-2.
280 :    
281 :     * man/TextRepository.Rd: Fixed bug in documentation.
282 :    
283 : feinerer 704 2007-01-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
284 :    
285 :     * DESCRIPTION: Update to version 0.1-1.
286 :    
287 : feinerer 702 2007-01-09 Ingo Feinerer <h0125130@wu-wien.ac.at>
288 :    
289 :     * R/textdoccol.R (stemDoc): Use Rstem::wordStem instead of
290 :     wordStem.
291 :    
292 : feinerer 698 2007-01-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
293 :    
294 :     * R/: Changes due to Kurt's review.
295 :    
296 : feinerer 694 2006-12-31 Ingo Feinerer <h0125130@wu-wien.ac.at>
297 :    
298 :     * R/: Implemented improvements based upon comments by David
299 :     Meyer.
300 :    
301 : feinerer 691 2006-12-17 Ingo Feinerer <h0125130@wu-wien.ac.at>
302 :    
303 :     * inst/doc/: Rewrote vignette.
304 :    
305 :     * man/: Improved documentation.
306 :    
307 : feinerer 690 2006-12-16 Ingo Feinerer <h0125130@wu-wien.ac.at>
308 :    
309 :     * man/: Updated documentation.
310 :    
311 :     * DESCRIPTION: Changed package name to "tm". Updated version to
312 :     0.1 for first CRAN release.
313 :    
314 :     * inst/texts/gmane.comp.lang.r.general.mbox: mbox Gmane R mailing
315 :     list archive example.
316 :    
317 :     * inst/texts/gmane.comp.lang.r.gr.rdf: RSS Gmane R mailing list
318 :     archive example.
319 :    
320 :     * R/preprocess.R (convert_mbox_eml): A simple e-mail converter
321 :     from (several mails per box) mbox format to (single mail per file)
322 :     eml format.
323 :    
324 : feinerer 689 2006-12-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
325 :    
326 :     * data/crude.rda: Rebuilt.
327 :    
328 :     * data/acq.rda: Rebuilt.
329 :    
330 :     * R/reader.R: Factored out reader and parser methods from
331 :     textdoccol.R.
332 :    
333 :     * R/source.R: Factored out Source methods from aobjects.R and
334 :     textdoccol.R.
335 :     (GmaneRSource): Encapsulates Gmane R mailing list archive RSS
336 :     feeds.
337 :    
338 :     * R/textdoccol.R (DirSource): Added support for recursive
339 :     traversal of directories.
340 :    
341 :     2006-12-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
342 :    
343 :     * R/textdoccol.R ([[): Loads the document corpus automatically
344 :     into memory upon access.
345 :     (tm_transform, tm_filter): Removed several checks whether the
346 :     document is already loaded ([[ ensures this now).
347 :     (gmane_r_reader): Reader for RSS feeds as provided by the Gmane R
348 :     mailing list archive.
349 :    
350 :     2006-12-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
351 :    
352 :     * R/aobjects.R (TextDocument): Is now a virtual class.
353 :     (Source): Is now a virtual class.
354 :    
355 :     2006-12-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
356 :    
357 :     * R/textdoccol.R (c): Support for an arbitrary number of document
358 :     collections.
359 :    
360 : feinerer 77 2006-11-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
361 :    
362 :     * R/textrepo.R: Updated TextRepository (constructor), append_elem,
363 :     append_meta and remove_meta.
364 :    
365 :     * R/textdoccol.R: Removed modify_metadata method.
366 :    
367 :     * R/textrepo.R: Removed modify_metadata method.
368 :    
369 :     * R/textdoccol.R (remove_meta): Supports removal of document
370 :     collection metadata and document (= in data frame) metadata.
371 :    
372 : feinerer 76 2006-11-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
373 :    
374 :     * R/textdoccol.R (append_doc): Bug fix for handling empty metadata.
375 :    
376 :     * data/crude.rda: Rebuilt.
377 :    
378 :     * data/acq.rda: Rebuilt.
379 :    
380 :     * inst/doc/textmin.Rnw: Updated vignette to reflect code changes.
381 :    
382 :     * R/textdoccol.R ([): Bug fix for subsetting a document
383 :     collection's data frame.
384 :    
385 : feinerer 75 2006-11-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
386 :    
387 :     * R/textdoccol.R: Bug fixes in s_filter. Added full query support
388 :     to s_filter.
389 :    
390 :     * R/textdoccol.R: Local text documents' metadata can now be copied
391 :     to a document collection's data frame with prescind_meta.
392 :    
393 : feinerer 73 2006-11-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
394 :    
395 : feinerer 74 * R/: Text documents' slot metadata is now accessible in s_filter.
396 :    
397 : feinerer 73 * R/: Rewrote s_filter function (has still some restrictions).
398 :    
399 : feinerer 72 2006-11-20 Ingo Feinerer <h0125130@wu-wien.ac.at>
400 :    
401 :     * R/: Various fixes in handling metadata.
402 :    
403 :     * R/: Added update mechanism for text document collections.
404 :    
405 : feinerer 71 2006-11-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
406 :    
407 :     * R/: Merging of document collections now creates a binary tree
408 :     for reconstructing merged document collections.
409 :    
410 :     * R/: Redesign of metadata for document collections.
411 :    
412 : feinerer 70 2006-11-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
413 :    
414 :     * R/: Messages now use \code{ngettext}.
415 :    
416 : feinerer 69 2006-11-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
417 :    
418 :     * R/: Added functions for modifying and removing metadata.
419 :    
420 : feinerer 67 2006-11-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
421 :    
422 :     * man/: Updated some documentation.
423 :    
424 :     * R/: Corrected some connection issues.
425 :    
426 :     * inst/doc: Worked on the vignette.
427 :    
428 : feinerer 65 2006-10-31 Ingo Feinerer <h0125130@wu-wien.ac.at>
429 :    
430 : feinerer 66 * inst/: Added texts and started vignette.
431 :    
432 : feinerer 65 * R/: Final changes based upon David's comments.
433 :    
434 : feinerer 64 2006-10-29 Ingo Feinerer <h0125130@wu-wien.ac.at>
435 :    
436 :     * NAMESPACE: Corrected exports (generic methods need exportMethods
437 :     directives!).
438 :    
439 : feinerer 63 2006-10-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
440 :    
441 :     * R/: Modified the TextDocCol constructur and various parsers. It
442 :     is now modular and supports various file formats via plugins (see
443 :     the new "Source" class).
444 :    
445 : feinerer 62 2006-10-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
446 :    
447 :     * man/: Revised documentation after previous code changes.
448 :    
449 : feinerer 61 2006-10-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
450 :    
451 :     * R/: Remaining changes as discussed with David.
452 :    
453 : feinerer 60 2006-10-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
454 :    
455 :     * R/: Some changes as suggested by David. The rest will follow
456 :     within the next days.
457 :    
458 : feinerer 59 2006-09-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
459 :    
460 :     * man/: Finished documentation.
461 :    
462 : feinerer 58 2006-09-25 Ingo Feinerer <h0125130@wu-wien.ac.at>
463 :    
464 :     * man/: Wrote some documentation.
465 :    
466 : feinerer 56 2006-09-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
467 :    
468 :     * R/: Further syntactic sugar in form of additional assignment and
469 :     accessor methods.
470 :    
471 : feinerer 54 2006-09-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
472 :    
473 :     * R/: Syntactic sugar in form of "length", "show" and "summary"
474 : feinerer 56 operators.
475 : feinerer 54
476 : feinerer 53 2006-08-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
477 :    
478 :     * R/: Diverse updates. Mainly on default operators ("[" or "c")
479 :     and dissimilarities.
480 :    
481 : feinerer 52 2006-08-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
482 :    
483 :     * R/: Added similarity functions.
484 :    
485 :     * data/: Added english stopwords.
486 :    
487 : feinerer 50 2006-08-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
488 :    
489 : feinerer 51 * data/: Examples compiled for new features
490 :    
491 :     * R/: Changes due to new structure.
492 :    
493 : feinerer 50 * NAMESPACE: Corrected namespace to reflect new structure.
494 :    
495 :     * R/termdocmatrix.R: Adapted for new naming scheme.
496 :    
497 : feinerer 49 2006-08-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
498 :    
499 :     * R/textdoccol.R: Adapted code for new class structure. Wrote
500 :     several transform and filter functions operating on text document
501 :     collections (alias text document databases).
502 :    
503 :     * R/aobjects.R: Adapted class structure with inheritance,
504 :     repositories and additional meta data. Loading files on demand is
505 :     now possible.
506 :    
507 : feinerer 48 2006-07-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
508 :    
509 :     * R/: Some cosmetic cleanups.
510 :    
511 :     * inst/: Removed vignette on clustering. That and much more is now
512 :     described in the JSS paper on text mining. Based upon that
513 :     article an elaborated vignette will be incorporated in the future.
514 :    
515 : feinerer 42 2006-07-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
516 :    
517 :     * R/: Updated generic S4 methods to comply with signature changes
518 :     in newer versions of R (> 2.3)
519 :    
520 : feinerer 41 2006-03-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
521 :    
522 :     * ext/R/importRIS.R: Automatic RIS import is now possible.
523 :    
524 : feinerer 40 2006-02-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
525 :    
526 :     * R/textdoccol.R: Added RIS HTML input format.
527 :    
528 : feinerer 39 2006-01-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
529 :    
530 :     * R/textdoccol.R: Removed bug that caused invalid text document
531 :     collections when handling many input files.
532 :    
533 : feinerer 36 2006-01-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
534 :    
535 : feinerer 37 * R/textdoccol.R: Restructured and extended file import
536 :     mechanism.
537 :    
538 : feinerer 36 * inst/doc/clustering.Rnw: Adapted vignette for use with
539 :     ReutNews.rda
540 :    
541 :     * man/ReutNews.Rd: Documentation for ReutNews.rda
542 :    
543 :     * data/ReutNews.rda: A tiny Reuters21578 example data set.
544 :    
545 : feinerer 34 2005-12-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
546 :    
547 :     * inst/doc/clustering.Rnw: Wrote a small vignette to present the
548 :     clustering facilities of this package.
549 :    
550 : feinerer 33 2005-12-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
551 :    
552 :     * R/aobjects.R: Changed package document structure to avoid class
553 :     dependency problems.
554 :    
555 : feinerer 28 2005-12-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
556 :    
557 : feinerer 29 * Wrote a script for the ModLewis Split for the Reuters-21578 XML
558 :     data set.
559 :    
560 : feinerer 28 * Finished documentation and reordered directory structure. Now "R
561 :     CMD check textmin" works without errors.
562 :    
563 : feinerer 27 2005-12-04 Ingo Feinerer <h0125130@wu-wien.ac.at>
564 :    
565 :     * src/: Various splits can now be easily created for the
566 :     Reuters21578 data set.
567 :    
568 : feinerer 26 2005-12-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
569 :    
570 :     * Updated documentation
571 :    
572 : feinerer 25 2005-11-30 Ingo Feinerer <h0125130@wu-wien.ac.at>
573 :    
574 :     * Wrote R documentation for some classes and methods.
575 :    
576 : feinerer 21 2005-11-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
577 :    
578 : feinerer 22 * R/textdoccol.R: Constructor of textdoccol allows import of CSV
579 :     files. See the questionnaire data/Umfrage.csv for such an example.
580 : feinerer 23 We are now able to import files in Reuters-21578 XML format.
581 : feinerer 22
582 : feinerer 21 * Changed class interfaces in various files. Weighting of the text
583 :     matrix is now possible.
584 :    
585 : feinerer 20 2005-11-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
586 :    
587 :     * R/textdoccol.R: One can build term-document matrices if
588 :     nessecary (with buildTDM(...)) and fill the field tdm from a text
589 :     document collection with it.
590 :    
591 :     * R/textmatrix.R: Wrote S4 class for term-document matrices.
592 :    
593 : feinerer 19 2005-11-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
594 :    
595 :     * R/textdoccol.R: We now can read in a whole XML file with several
596 :     news items.
597 :    
598 : feinerer 17 2005-11-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
599 :    
600 :     * R/textdoccol.R: Set up an S4 class for a collection of text
601 :     documents. A first attempt to read in XML input (like the RCV1
602 :     set) was made.
603 :    
604 :     * R/textdocument.R: Set up an S4 class for text documents. Wrote
605 :     some accessor functions.
606 :    
607 :     * data/newsitem.xml: Added this XML file for testing purposes. It
608 :     contains a single news item from the Reuters Corpus Volume 1
609 :     (RCV1) XML set.
610 :    
611 : feinerer 16 2005-10-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
612 :    
613 :     * R/textmatrix.R (textmatrix): Removed the transpose of the original
614 :     textmatrix as k-means clustering provided by R (kmeans) now works on
615 :     this textmatrix. The result is a k-means text clustering with a
616 :     similarity measure based upon word frequences.
617 :    
618 :     2005-10-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
619 :    
620 :     * R/textmatrix.R: Adapted the preprocessing code from the R
621 :     package "lsa" written by Fridolin Wild to build a document text matrix.
622 :    
623 :     2005-10-02 Ingo Feinerer <h0125130@wu-wien.ac.at>
624 :    
625 :     * Set up the R Text Mining Package infrastructure.

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