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Revision 785 - (view) (download)
Original Path: trunk/tm/ChangeLog

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

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