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

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