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Annotation of /pkg/ChangeLog

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

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