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Revision 1108 - (view) (download)

1 : feinerer 1108 2010-10-22 Ingo Feinerer <feinerer@logic.at>
2 :    
3 :     * R/matrix.R (.TermDocumentMatrix): Make Weighting an attribute
4 :     (instead of a list element).
5 :    
6 : feinerer 1102 2010-10-16 Ingo Feinerer <feinerer@logic.at>
7 :    
8 :     * R/corpus.R (`[[.VCorpus`, `[[.PCorpus'): Access individual
9 : feinerer 1108 documents by names (fallback to IDs if names are not set).
10 : feinerer 1102
11 : feinerer 1095 2010-08-25 Ingo Feinerer <feinerer@logic.at>
12 :    
13 :     * R/corpus.R (c.Corpus): When concatenating corpora, the argument
14 :     \code{recursive} now determines whether existing corpus meta data
15 :     is used.
16 :    
17 : feinerer 1084 2010-08-06 Ingo Feinerer <feinerer@logic.at>
18 :    
19 :     * R/transform.R: Removed convert_UTF_8(). Use enc2utf8() instead.
20 :    
21 : feinerer 1080 2010-06-17 Ingo Feinerer <feinerer@logic.at>
22 :    
23 :     * R/matrix.R (TermDocumentMatrix): If a dictionary is given do not
24 :     remove terms not occurring in the corpus anymore.
25 :    
26 : feinerer 1075 2010-06-02 Ingo Feinerer <feinerer@logic.at>
27 :    
28 :     * R/plot.R (Zipf_plot, Heaps_plot): Plotting functions for Zipf's
29 :     and Heaps' law.
30 :    
31 : feinerer 1070 2010-05-18 Ingo Feinerer <feinerer@logic.at>
32 :    
33 :     * R/corpus.R (Corpus, PCorpus): Use element names as IDs if
34 :     provided by a source.
35 :    
36 : feinerer 1063 2010-04-09 Ingo Feinerer <feinerer@logic.at>
37 :    
38 :     * R/source.R (.Source): Provide document names.
39 :    
40 : feinerer 1062 2010-04-07 Ingo Feinerer <feinerer@logic.at>
41 :    
42 :     * R/meta.R (`content_or_meta`): Utility function.
43 :    
44 : feinerer 1061 2010-03-19 Ingo Feinerer <feinerer@logic.at>
45 :    
46 :     * R/reader.R (readReut21578XML, readReut21578XMLasPlain): Extract
47 :     TOPICS, LEWISSPLIT, CGISPLIT, and OLDID meta tags.
48 :    
49 : feinerer 1048 2010-03-03 Ingo Feinerer <feinerer@logic.at>
50 :    
51 : feinerer 1051 * R/weight.R (weightTfIdf): Added normalization option.
52 :    
53 : feinerer 1048 * man/tm_tag_score.Rd: Add General Inquirer example for sentiment
54 :     analysis.
55 :    
56 : feinerer 1046 2010-02-25 Ingo Feinerer <feinerer@logic.at>
57 :    
58 :     * R/score.R (tm_tag_score): Compute a score from the number of
59 :     tags matching in a document.
60 :    
61 : feinerer 1041 2010-02-18 Ingo Feinerer <feinerer@logic.at>
62 :    
63 :     * R/complete.R (stemCompletion): New completion heuristics.
64 :    
65 :     2010-02-17 Ingo Feinerer <feinerer@logic.at>
66 :    
67 :     * R/plot.R (plot.TermDocumentMatrix): Memory improvements.
68 :    
69 : feinerer 1040 2010-02-06 Ingo Feinerer <feinerer@logic.at>
70 :    
71 :     * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
72 :     setOldClass(c(..., "list")) works.
73 :    
74 : feinerer 1039 2010-01-22 Ingo Feinerer <feinerer@logic.at>
75 :    
76 :     * R/transform.R (stemDocument.character): In case input is a
77 :     simple character just delegate to the default Snowball stemmer.
78 :    
79 : feinerer 1038 2010-01-15 Ingo Feinerer <feinerer@logic.at>
80 :    
81 :     * R/reader.R (readReut21578XML, readRCV1): Extract more meta
82 :     data.
83 :    
84 : feinerer 1034 2010-01-12 Ingo Feinerer <feinerer@logic.at>
85 :    
86 :     * R/doc.R (`Content<-`): Be careful with names attribute.
87 :    
88 : stefan7th 1032 2010-01-07 Stefan Theussl <stefan.theussl@wu.ac.at>
89 :    
90 :     * R/source.R (DirSource): Improved implementation especially when
91 : feinerer 1042 handling many (> 1M) files.
92 : stefan7th 1032
93 : feinerer 1029 2009-12-22 Ingo Feinerer <feinerer@logic.at>
94 :    
95 :     * R/source.R (getElem.URISource): Use encoding argument.
96 :    
97 : feinerer 1025 2009-12-11 Ingo Feinerer <feinerer@logic.at>
98 :    
99 :     * R/doc.R (setOldClass): Register S3 document classes to be
100 :     recognized by S4 methods.
101 :    
102 : feinerer 1023 2009-11-25 Ingo Feinerer <feinerer@logic.at>
103 :    
104 :     * R/matrix.R (termFreq): Add option to remove punctuation
105 :     characters.
106 :    
107 : feinerer 1022 2009-11-19 Ingo Feinerer <feinerer@logic.at>
108 :    
109 :     * R/matrix.R (c.TermDocumentMatrix): Added combine method for
110 :     merging multiple term-document matrices.
111 :    
112 : feinerer 1020 2009-11-17 Ingo Feinerer <feinerer@logic.at>
113 :    
114 : feinerer 1021 * R/corpus.R (setOldClass): Register S3 corpus classes to be
115 :     recognized by S4 methods.
116 :    
117 : feinerer 1020 * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
118 :     that CRAN Mac OS X builds do not fail any longer.
119 :    
120 : feinerer 1019 2009-11-15 Ingo Feinerer <feinerer@logic.at>
121 :    
122 :     * R/matrix.R (tokenize): Use scan(..., what = "character") instead
123 :     of RWeka:AlphabeticTokenizer() as default.
124 :    
125 : feinerer 1018 2009-11-14 Ingo Feinerer <feinerer@logic.at>
126 :    
127 :     * R/transform.R (removeWords.PlainTextDocument): Fix bug which
128 :     caused words at the beginning or the end of a line not to be removed. Do
129 :     not delete whitespace anymore.
130 :    
131 : feinerer 1017 2009-11-12 Ingo Feinerer <feinerer@logic.at>
132 :    
133 :     * R/source.R (DirSource): Default to working directory if no path
134 :     is specified.
135 :    
136 :     2009-11-11 Ingo Feinerer <feinerer@logic.at>
137 :    
138 :     * R/source.R (DirSource): Stop on empty directories.
139 :    
140 : feinerer 1015 2009-11-07 Ingo Feinerer <feinerer@logic.at>
141 :    
142 :     * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
143 :     named documents.
144 :    
145 : feinerer 1013 2009-10-21 Ingo Feinerer <feinerer@logic.at>
146 :    
147 :     * R/transform.R (removeWords): Improve regular expressions.
148 :    
149 : feinerer 1011 2009-10-19 Ingo Feinerer <feinerer@logic.at>
150 :    
151 :     * R/meta.R (DublinCore): Allow lower case tags.
152 :    
153 : feinerer 1010 2009-10-09 Ingo Feinerer <feinerer@logic.at>
154 :    
155 :     * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
156 :     instead of x$children.
157 :    
158 : feinerer 1007 2009-09-15 Ingo Feinerer <feinerer@logic.at>
159 :    
160 :     * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
161 :    
162 : feinerer 993 2009-09-06 Ingo Feinerer <feinerer@logic.at>
163 :    
164 :     * R/: Use S3 instead of S4 class system.
165 :    
166 : feinerer 982 2009-08-11 Ingo Feinerer <feinerer@logic.at>
167 :    
168 :     * R/reader.R (readMail): Moved to tm.plugin.mail package.
169 :    
170 : feinerer 973 2009-07-04 Ingo Feinerer <feinerer@logic.at>
171 :    
172 :     * R/reader.R (readNewsgroup): Rename to readMail as newsgroup
173 :     postings are basically e-mails with some extra headers.
174 :    
175 : feinerer 972 2009-07-03 Ingo Feinerer <feinerer@logic.at>
176 :    
177 : feinerer 981 * R/transform.R: Move convertMboxEml, removeCitation,
178 :     removeMultipart, and removeSignature to the tm.plugin.mail package
179 :     since they are mainly utility functions (for handling e-mails) and
180 :     not very framework specific.
181 : feinerer 972
182 : feinerer 962 2009-06-28 Ingo Feinerer <feinerer@logic.at>
183 :    
184 :     * man/: Fix documentation.
185 :    
186 : feinerer 960 2009-06-26 Ingo Feinerer <feinerer@logic.at>
187 :    
188 :     * R/reader.R (readReut21578XMLasPlain): New reader which returns a
189 :     plain text document instead of an XML document for texts of the
190 :     Reuters-21578 dataset.
191 :    
192 :     * R/sparse.R: Removed since the slam package is now available on
193 :     CRAN.
194 :    
195 :     * DESCRIPTION (Depends): Add slam package.
196 :    
197 : feinerer 959 2009-06-17 Ingo Feinerer <feinerer@logic.at>
198 :    
199 :     * R/transform.R (stemDoc): Fix character(0) handling.
200 :    
201 : feinerer 957 2009-06-12 Ingo Feinerer <feinerer@logic.at>
202 :    
203 :     * R/doc.R (show): Pretty print.
204 :    
205 : feinerer 954 2009-05-27 Ingo Feinerer <feinerer@logic.at>
206 :    
207 :     * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
208 :     gracefully.
209 :    
210 : feinerer 946 2009-05-13 Ingo Feinerer <feinerer@logic.at>
211 :    
212 :     * R/corpus.R: Make corpus virtual. Implement corpus with standard
213 :     and permanent storage semantics.
214 :    
215 :     * DESCRIPTION: New major release. A *lot* of improvements.
216 :    
217 : feinerer 945 2009-05-04 Ingo Feinerer <feinerer@logic.at>
218 :    
219 :     * NAMESPACE: Export some simple_triplet_matrix functions.
220 :    
221 : feinerer 942 2009-04-28 Ingo Feinerer <feinerer@logic.at>
222 :    
223 :     * R/weight.R: Adapt tf-idf to new matrix format.
224 :    
225 : feinerer 941 2009-04-27 Ingo Feinerer <feinerer@logic.at>
226 :    
227 :     * R/matrix.R: Create two distinct classes for term-document and
228 :     document-term matrices.
229 :    
230 : feinerer 938 2009-04-26 Ingo Feinerer <feinerer@logic.at>
231 :    
232 : feinerer 939 * R/termdocmatrix.R: No longer use Matrix package. This reduces
233 :     package start-up time significantly.
234 : feinerer 938
235 : feinerer 930 2009-04-11 Ingo Feinerer <feinerer@logic.at>
236 :    
237 :     * inst/doc/tm.Rnw: Fix code/documentation mismatch.
238 :    
239 : feinerer 926 2009-04-04 Ingo Feinerer <feinerer@logic.at>
240 :    
241 :     * R/transform.R (tmReduce): Combine multiple maps into one
242 :     transformation.
243 :    
244 : feinerer 923 2009-04-03 Ingo Feinerer <feinerer@logic.at>
245 :    
246 : feinerer 924 * R/weight.R: Remove weightLogical since it does not return a
247 :     dgCMatrix.
248 :    
249 : feinerer 925 * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
250 :     or TermDocumentMatrix instead.
251 : feinerer 923
252 : feinerer 919 2009-03-28 Ingo Feinerer <feinerer@logic.at>
253 :    
254 :     * inst/doc/extensions.Rnw: Finished vignette.
255 :    
256 : feinerer 918 2009-03-27 Ingo Feinerer <feinerer@logic.at>
257 :    
258 :     * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
259 :     DocumentTermMatrix representations.
260 :    
261 : feinerer 912 2009-03-23 Ingo Feinerer <feinerer@logic.at>
262 :    
263 :     * R/reader.R (readXML): New reader for arbitrary XML files.
264 :    
265 : feinerer 909 2009-03-22 Ingo Feinerer <feinerer@logic.at>
266 :    
267 : feinerer 910 * R/source.R (CSVSource): Defunct (use DataframeSource instead).
268 : feinerer 911 (XMLSource): New XMLSource class for arbitrary XML files.
269 :     (Source): New slot Vectorized.
270 : feinerer 910
271 : feinerer 904 2009-03-21 Ingo Feinerer <feinerer@logic.at>
272 :    
273 : feinerer 939 * R/reader.R (readTabular): Experimental reader for tabular data
274 :     structures which can be customized via user-defined mappings.
275 : feinerer 908
276 : feinerer 905 * R/reader.R: Always use UTC time zone.
277 :    
278 : feinerer 904 * R/AAA.R (.onLoad): No longer try to start a MPI cluster.
279 :    
280 : feinerer 903 2009-03-20 Ingo Feinerer <feinerer@logic.at>
281 :    
282 :     * R/reader.R (readDOC): Options can be passed over to antiword.
283 :    
284 :     * R/reader.R (readPDF): Options can be passed over to pdfinfo and
285 :     pdftotext.
286 :    
287 : feinerer 895 2009-03-10 Ingo Feinerer <feinerer@logic.at>
288 :    
289 :     * R/source.R (DirSource): Add pattern and ignore.case arguments
290 :     which are internally passed over to list.files().
291 :    
292 : feinerer 893 2009-03-02 Ingo Feinerer <feinerer@logic.at>
293 :    
294 :     * inst/doc/tm.Rnw: Suppress pointless loading message.
295 :    
296 : feinerer 886 2009-01-29 Ingo Feinerer <feinerer@logic.at>
297 :    
298 :     * DESCRIPTION: Speed up package loading (via moving packages not
299 :     strictly necessary for normal operation to Suggests instead of
300 :     Depends).
301 :    
302 : feinerer 882 2009-01-08 Ingo Feinerer <feinerer@logic.at>
303 :    
304 :     * R/reader.R (readNewsgroup): The date format is now configurable.
305 :    
306 : feinerer 881 2008-12-20 Ingo Feinerer <feinerer@logic.at>
307 :    
308 :     * R/preprocess.R (convertMboxEml): Fix off-by-one error.
309 :    
310 : feinerer 877 2008-12-16 Ingo Feinerer <feinerer@logic.at>
311 :    
312 :     * R/termdocmatrix.R (TermDocMatrix): Sort row indices.
313 :    
314 : feinerer 875 2008-12-06 Ingo Feinerer <feinerer@logic.at>
315 :    
316 : feinerer 876 * R/source.R (DataframeSource): New source class for data frames.
317 :    
318 : feinerer 875 * R/source.R: Fixed non-standard call evaluation.
319 :    
320 : feinerer 874 2008-11-29 Ingo Feinerer <feinerer@logic.at>
321 :    
322 :     * R/source.R (URISource): New source class for a single document.
323 :    
324 : feinerer 873 2008-11-27 Ingo Feinerer <feinerer@logic.at>
325 :    
326 :     * R/source.R: Refactoring.
327 :    
328 : feinerer 872 2008-11-25 Ingo Feinerer <feinerer@logic.at>
329 :    
330 :     * R/AAA.R (.onLoad, .Last): Use tryCatch() to handle misconfigured
331 :     Rmpi installations more gracefully.
332 :    
333 : feinerer 869 2008-11-08 Ingo Feinerer <feinerer@logic.at>
334 :    
335 :     * R/source.R (Source): Add Length slot.
336 :    
337 :     2008-11-06 Ingo Feinerer <feinerer@logic.at>
338 :    
339 :     * R/AAA.R: Unify duplicated .onLoad function.
340 :    
341 : feinerer 868 2008-11-03 Ingo Feinerer <feinerer@logic.at>
342 :    
343 :     * DESCRIPTION (Suggests): Added Rmpi.
344 :    
345 : feinerer 866 2008-11-02 Ingo Feinerer <feinerer@logic.at>
346 :    
347 :     * R/source.R (getElem): Fix 'no visible binding' warning.
348 :    
349 :     * man/WeightFunction.Rd: Fix signature.
350 :    
351 : feinerer 865 2008-08-03 Ingo Feinerer <feinerer@logic.at>
352 :    
353 :     * R/weight.R: Introduce name abbreviations for weighting functions.
354 :    
355 : feinerer 861 2008-07-24 Ingo Feinerer <feinerer@logic.at>
356 :    
357 :     * R/AAA.R (.onLoad, .Last): Start and stop MPI cluster.
358 :    
359 :     * R/cluster.R: Provide convenience functions for using a MPI
360 :     cluster.
361 :    
362 :     * R/termdocmatrix.R (TermDocMatrix): Use MPI cluster if
363 :     available.
364 :    
365 :     * R/textdoccol.R (tmIndex, tmFilter, tmMap): Use MPI cluster if
366 :     available.
367 :    
368 : feinerer 860 2008-07-17 Ingo Feinerer <feinerer@logic.at>
369 :    
370 :     * R/textdoccol.R (lapply): Removed debug print out.
371 :    
372 : feinerer 856 2008-06-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
373 :    
374 :     * R/reader.R (readRCV1): Improved meta data extraction from
375 :     Reuters Corpus Volume 1 documents.
376 :    
377 : feinerer 855 2008-05-25 Ingo Feinerer <h0125130@wu-wien.ac.at>
378 :    
379 :     * R/transform.R: Ensure that all mappings preserve multiline
380 :     structures.
381 :    
382 : feinerer 854 2008-05-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
383 :    
384 :     * R/filter.R: Every filter has now an attribute indicating whether
385 :     it sould be applied to document level (doclevel).
386 :    
387 :     * R/textdoccol.R (tmFilter): Set searchFullText as new default
388 :     filter.
389 :    
390 : feinerer 838 2008-04-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
391 :    
392 :     * R/transform.R (replacePatterns): Replaced removeWords by
393 :     replacePatterns. Suggested by Christian Buchta.
394 :    
395 :     * R/textdoccol.R (inspect): Improved formatting.
396 :    
397 : feinerer 836 2008-04-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
398 :    
399 :     * inst/CITATION: Updated JSS article information.
400 :    
401 :     * R/textdoccol.R (setAs): Added coerce method from list to
402 :     corpus.
403 :    
404 :     * R/meta.R (meta): Improved meta data handling.
405 :    
406 : feinerer 833 2008-03-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
407 :    
408 :     * R/textdoccol.R (materialize, tmMap): Improvements suggested by
409 :     Christian Buchta.
410 :    
411 :     * inst/CITATION: Added template to include JSS article reference.
412 :    
413 : feinerer 831 2008-03-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
414 :    
415 :     * R/textdoccol.R (tmMap): Introduced lazy mapping.
416 :    
417 : feinerer 832 * R/source.R: Added VectorSource.
418 :    
419 : feinerer 825 2008-02-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
420 :    
421 :     * man/: Language codes should be in ISO 639-1 format.
422 :    
423 : feinerer 826 * R/textdoccol.R (asPlain): Preserve local meta data.
424 :    
425 : feinerer 819 2008-01-31 Ingo Feinerer <h0125130@wu-wien.ac.at>
426 :    
427 :     * R/textdoccol.R (writeCorpus): Function for writing a corpus
428 :     containing plain text documents to disk.
429 :    
430 : feinerer 817 2008-01-30 Ingo Feinerer <h0125130@wu-wien.ac.at>
431 :    
432 :     * R/termdocmatrix.R (TermDocMatrix): Ensure that dimnames are
433 :     always set correctly.
434 :    
435 :     * R/textdoccol.R: Set load = TRUE as default for load on demand
436 :     since in most cases this is the wanted behaviour.
437 :    
438 : feinerer 816 2008-01-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
439 :    
440 :     * R/: Renamed TextDocCol to Corpus, and Corpus to Content.
441 :    
442 :     * DESCRIPTION: Updated Version to 0.3 due to core name changes.
443 :    
444 : feinerer 813 2008-01-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
445 :    
446 :     * R/meta.R (meta): New function for consistent access to meta data
447 :     of document collections, repositories, and texts.
448 :    
449 : feinerer 810 2008-01-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
450 :    
451 :     * R/: Better support for encodings.
452 :    
453 : feinerer 808 2008-01-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
454 :    
455 :     * R/textdoccol.R (TextDocCol): Fixed bug regarding default reader
456 :     selection when no reader argument is given.
457 :    
458 : feinerer 807 2008-01-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
459 :    
460 :     * R/source.R (CSVSource): Now uses read.csv instead of scan
461 :     internally.
462 :    
463 : feinerer 806 2008-01-02 Ingo Feinerer <h0125130@wu-wien.ac.at>
464 :    
465 :     * R/reader.R (getReaders): Returns available reader functions.
466 :    
467 :     * R/termdocmatrix.R (TermDocMatrix): Set new modular constructor
468 :     as default.
469 :    
470 : feinerer 802 2007-12-02 Ingo Feinerer <h0125130@wu-wien.ac.at>
471 :    
472 :     * R/stopwords.R (stopwords): Shortened code, removed codetools
473 :     variable warnings.
474 :    
475 :     * man/: Documentation for showMeta, added an example for tmMap.
476 :    
477 :     * inst/doc/tm.Rnw: Updated vignette, comments on MS word reader,
478 :     some minor typos fixed.
479 :    
480 : feinerer 801 2007-12-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
481 :    
482 :     * R/aobjects.R (showMeta): Added method for pretty printing a
483 :     text document's meta data.
484 :    
485 : feinerer 799 2007-11-29 Ingo Feinerer <h0125130@wu-wien.ac.at>
486 :    
487 :     * R/textdoccol.R (TextDocCol): Better handling of empty
488 :     arguments.
489 :    
490 :     * NAMESPACE: Exported readDOC.
491 :    
492 : feinerer 800 * man/completeStems.Rd: Added an example.
493 :    
494 : feinerer 797 2007-11-18 Ingo Feinerer <h0125130@wu-wien.ac.at>
495 : feinerer 796
496 : feinerer 797 * R/stopwords.R (stopwords): Look up .dat files at every
497 :     call. Allows users to modify stopword .dat files interactively.
498 :    
499 :     2007-11-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
500 :    
501 : feinerer 796 * R/termdocmatrix.R (termFreq): Correct processing of empty
502 :     documents.
503 :    
504 : feinerer 795 2007-10-27 Ingo Feinerer <h0125130@wu-wien.ac.at>
505 :    
506 :     * man/: Updated documentation.
507 :    
508 : feinerer 790 2007-10-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
509 :    
510 : feinerer 793 * R/complete.R (completeStems): Completes (heuristically) word
511 :     stems.
512 :    
513 : feinerer 790 * R/termdocmatrix.R (TermDocMatrix2): New modular
514 :     constructor.
515 :    
516 :     * NAMESPACE: Exported termFreq.
517 :    
518 : feinerer 789 2007-10-16 Ingo Feinerer <h0125130@wu-wien.ac.at>
519 :    
520 :     * R/reader.R (readDOC): Added MS Word reader (using antiword).
521 :    
522 : feinerer 788 2007-10-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
523 :    
524 :     * R/weight.R: Weighting functions for TermDocMatrix.
525 :    
526 : feinerer 785 2007-10-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
527 :    
528 :     * R/termdocmatrix.R (dimnames, colnames, rownames): Wrapper
529 :     functions for accessing dimension, column, and row names.
530 :    
531 :     * R/plot.R (plot.TermDocMatrix): Plot correlations between terms.
532 :    
533 : feinerer 779 2007-09-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
534 :    
535 :     * man/removePunctuation.Rd: Added documentation. Function also exported to NAMESPACE.
536 :    
537 : feinerer 777 2007-08-28 Ingo Feinerer <h0125130@wu-wien.ac.at>
538 :    
539 :     * R/fungen.R: Use S4 class for function generators instead of S3 attributes.
540 :    
541 : feinerer 776 2007-07-29 Ingo Feinerer <h0125130@wu-wien.ac.at>
542 :    
543 :     * R/reader.R (readPDF): Removed manual checks for pdftotext and
544 :     pdfinfo. The system call gives a warning anyway.
545 :    
546 : feinerer 775 2007-07-28 Ingo Feinerer <h0125130@wu-wien.ac.at>
547 :    
548 :     * R/textdoccol.R (asPlain): Conversion from
549 :     StructuredTextDocuments to PlainTextDocuments.
550 :    
551 : feinerer 773 2007-07-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
552 :    
553 : feinerer 774 * R/termdocmatrix.R: Added convenience methods ("[", nrow, ncol)
554 :     for accessing term-document matrices.
555 :    
556 : feinerer 773 * inst/doc/tm.Rnw: readPDF is only called if pdftotext and pdfinfo
557 :     are installed.
558 :    
559 : feinerer 770 2007-07-17 Ingo Feinerer <h0125130@wu-wien.ac.at>
560 :    
561 :     * R/termdocmatrix.R (TermDocMatrix): Improved efficiency. Kudos to
562 :     Christian Buchta.
563 :    
564 : feinerer 768 2007-07-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
565 :    
566 :     * inst/doc/tm.Rnw: Update vignette (readPDF, readHTML, preprocessReut21578XML).
567 :    
568 : feinerer 766 2007-07-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
569 :    
570 : feinerer 767 * R/reader.R (readHTML): Added very simple HTML reader to obtain StructuredTextDocuments.
571 :    
572 : feinerer 766 * R/reader.R (readPDF): Added PDF reader.
573 :    
574 : feinerer 765 2007-07-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
575 :    
576 :     * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
577 :    
578 :     * inst/stopwords/english.dat: Added the term "yes" to stopwords.
579 :    
580 :     * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
581 :    
582 :     * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
583 :    
584 : feinerer 763 2007-07-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
585 :    
586 :     * R/distmeasure.R (dissimilarity): Replaced dists call from
587 :     package cba by new dist call from package proxy.
588 :    
589 : feinerer 761 2007-07-10 Ingo Feinerer <h0125130@wu-wien.ac.at>
590 :    
591 :     * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
592 :    
593 : feinerer 760 2007-06-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
594 :    
595 :     * R/termdocmatrix.R: require() uses the quietly option to suppress
596 :     loading messages.
597 :    
598 : feinerer 758 2007-06-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
599 :    
600 :     * R/dictionary.R: Added dictionary support.
601 :    
602 : feinerer 757 2007-06-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
603 :    
604 :     * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
605 :     documents. This simplifies some functions, e.g., asPlain.
606 :    
607 : feinerer 756 2007-06-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
608 :    
609 :     * inst/doc/tm.Rnw: Fixed some typos in vignette.
610 :    
611 : feinerer 755 2007-06-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
612 :    
613 :     * R/textdoccol.R (replaceWords): Added method to replace a set of
614 :     words by a single word. Useful for synonyms.
615 :    
616 : feinerer 754 2007-05-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
617 :    
618 :     * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
619 :    
620 : feinerer 752 2007-05-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
621 :    
622 :     * R/termdocmatrix.R (textvector): Small fix for dealing with empty
623 :     vectors. Thanks to Ariel Maguyon for his error report.
624 :     (removeSparseTerms): New function to remove columns from a
625 :     term-document matrix exceeding a sparse factor.
626 :    
627 : feinerer 751 2007-05-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
628 :    
629 :     * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
630 :    
631 : feinerer 750 2007-05-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
632 :    
633 :     * man/sFilter.Rd: Corrected documentation on statement format (use
634 :     '==' instead of '=').
635 :    
636 : feinerer 749 2007-05-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
637 :    
638 :     * R/aobjects.R (StructuredTextDocument): Inherits from
639 :     TextDocument.
640 :    
641 : feinerer 748 2007-05-04 Ingo Feinerer <h0125130@wu-wien.ac.at>
642 :    
643 :     * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
644 :     on sparse matrices as proposed by Martin Maechler.
645 :    
646 : feinerer 747 2007-04-27 Ingo Feinerer <h0125130@wu-wien.ac.at>
647 :    
648 :     * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
649 :     \pkg{filehash} version makes them deprecated.
650 :    
651 : feinerer 744 2007-04-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
652 :    
653 :     * R/termdocmatrix.R (textvector): Stemming is now performed before
654 :     erasing stopwords.
655 :     (weightMatrix): Adapted to handle sparse matrices.
656 :     (TermDocMatrix): Sparse matrix is now efficiently built by
657 :     direct stepwise insertion of row values into it.
658 :    
659 : feinerer 741 2007-04-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
660 :    
661 :     * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
662 :     due to ongoing problems. For our purposes the latter is as useful
663 :     as the replaced package.
664 :    
665 : feinerer 738 2007-04-20 Ingo Feinerer <h0125130@wu-wien.ac.at>
666 :    
667 :     * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.
668 :    
669 :     * man/TermDocMatrix.Rd: Remove deprecated \code{language} argument.
670 :    
671 : feinerer 737 2007-04-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
672 :    
673 :     * R/resolve.R (resolveISOCode): Added ISO 639-1 codes for
674 :     languages with available stopwords.
675 :    
676 : feinerer 736 2007-04-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
677 :    
678 :     * inst/doc/tm.Rnw: Minor corrections in the vignette.
679 :    
680 : feinerer 731 2007-04-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
681 :    
682 : feinerer 732 * DESCRIPTION: Update to version 0.2, since a lot of new features
683 :     have been integrated.
684 : feinerer 731
685 : feinerer 732 * inst/stopwords: Updated existing stopwords and added stopwords
686 :     for various other languages.
687 :    
688 : feinerer 729 2007-04-10 Ingo Feinerer <h0125130@wu-wien.ac.at>
689 :    
690 : feinerer 730 * man/: Updated documentation.
691 :    
692 : feinerer 729 * Work/testDb.R: Script to test database stuff.
693 :    
694 :     * R/: Fixed various database related bugs. Seems to be rather
695 :     useable now, i.e., consider as alpha status for now.
696 :    
697 : feinerer 727 2007-04-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
698 :    
699 :     * R/: Fixed some bugs related to database support.
700 :    
701 : feinerer 726 2007-04-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
702 :    
703 :     * man/: Added a lot of examples to the manuals.
704 :    
705 : feinerer 725 2007-04-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
706 :    
707 :     * man/: Updated parts of the documentation.
708 :    
709 :     * R/textdoccol.R (asPlain): Added conversion from newsgroup
710 :     documents to plain text documents.
711 :    
712 : feinerer 722 2007-04-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
713 :    
714 : feinerer 724 * R/textdoccol.R: Finished experimental database support. Not yet
715 :     intensively tested.
716 :    
717 : feinerer 723 * R/source.R: Now each source has a default reader.
718 :    
719 : feinerer 722 * R/reader.R: \code{FunctionGenerator} is now an attribute, not a
720 :     class anymore.
721 :    
722 :     * R/plaintextdoc.R: Custom show method for plain text documents.
723 :    
724 :     * R/aobjects.R: Added a class for structured text documents.
725 :    
726 :     * R/reader.R: Replaced remaining \code{parser} occurrences with
727 :     \code{reader}.
728 :    
729 :     * R/textdoccol.R (summary): Indent tags.
730 :    
731 : feinerer 725 * R/textdoccol.R (removePunctuation): Transform method to remove
732 : feinerer 722 punctuation marks.
733 :    
734 : feinerer 721 2007-03-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
735 :    
736 :     * R/textdoccol.R (sFilter): Simplified sFilter significantly by
737 :     using prescindMeta().
738 :    
739 : feinerer 719 2007-03-18 Ingo Feinerer <h0125130@wu-wien.ac.at>
740 :    
741 :     * R/textdoccol.R: Improved database support.
742 :    
743 : feinerer 717 2007-03-16 Ingo Feinerer <h0125130@wu-wien.ac.at>
744 :    
745 : feinerer 718 * R/termdocmatrix.R (TermDocMatrix): Uses sparse matrices.
746 :    
747 : feinerer 717 * R/resolve.R (resolveISOcode): Extracts the language from a ISO
748 :     language code.
749 :    
750 :     * R/textdoccol.R (TextDocCol): Refactored several parser arguments
751 :     into parserControl argument.
752 :    
753 :     * R/aobjects.R (TextDocument): Introduced the "Language" slot.
754 :    
755 : feinerer 713 2007-03-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
756 :    
757 : feinerer 715 * Work/tmDataSetup.R: The datasets acq and crude can now be
758 :     created on the fly.
759 :    
760 : feinerer 713 * R/stopwords.R: Introduced a function returning the stopwords for
761 :     a given language (English, German and French at the moment)
762 :    
763 :     * R/textdoccol.R (stemDoc): Stemming uses Rstem if available,
764 :     otherwise falls back to Snowball package.
765 :    
766 : feinerer 711 2007-01-30 Ingo Feinerer <h0125130@wu-wien.ac.at>
767 :    
768 :     * man/dissimilarity-methods.Rd: Make clear that any method offered
769 :     by "dists" from package "cba" can be used.
770 :    
771 : feinerer 708 2007-01-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
772 :    
773 : feinerer 710 * inst/doc/tm.Rnw: Fixed quotes-appearing-as-boxes-bug according
774 :     to Kurt's latex suggestion. Removed points and underscores in
775 :     variable names for consistent naming.
776 :    
777 : feinerer 708 * DESCRIPTION: Update to version 0.1-2.
778 :    
779 :     * man/TextRepository.Rd: Fixed bug in documentation.
780 :    
781 : feinerer 704 2007-01-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
782 :    
783 :     * DESCRIPTION: Update to version 0.1-1.
784 :    
785 : feinerer 702 2007-01-09 Ingo Feinerer <h0125130@wu-wien.ac.at>
786 :    
787 :     * R/textdoccol.R (stemDoc): Use Rstem::wordStem instead of
788 :     wordStem.
789 :    
790 : feinerer 698 2007-01-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
791 :    
792 :     * R/: Changes due to Kurt's review.
793 :    
794 : feinerer 694 2006-12-31 Ingo Feinerer <h0125130@wu-wien.ac.at>
795 :    
796 :     * R/: Implemented improvements based upon comments by David
797 :     Meyer.
798 :    
799 : feinerer 691 2006-12-17 Ingo Feinerer <h0125130@wu-wien.ac.at>
800 :    
801 :     * inst/doc/: Rewrote vignette.
802 :    
803 :     * man/: Improved documentation.
804 :    
805 : feinerer 690 2006-12-16 Ingo Feinerer <h0125130@wu-wien.ac.at>
806 :    
807 :     * man/: Updated documentation.
808 :    
809 :     * DESCRIPTION: Changed package name to "tm". Updated version to
810 :     0.1 for first CRAN release.
811 :    
812 :     * inst/texts/gmane.comp.lang.r.general.mbox: mbox Gmane R mailing
813 :     list archive example.
814 :    
815 :     * inst/texts/gmane.comp.lang.r.gr.rdf: RSS Gmane R mailing list
816 :     archive example.
817 :    
818 :     * R/preprocess.R (convert_mbox_eml): A simple e-mail converter
819 :     from (several mails per box) mbox format to (single mail per file)
820 :     eml format.
821 :    
822 : feinerer 689 2006-12-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
823 :    
824 :     * data/crude.rda: Rebuilt.
825 :    
826 :     * data/acq.rda: Rebuilt.
827 :    
828 :     * R/reader.R: Factored out reader and parser methods from
829 :     textdoccol.R.
830 :    
831 :     * R/source.R: Factored out Source methods from aobjects.R and
832 :     textdoccol.R.
833 :     (GmaneRSource): Encapsulates Gmane R mailing list archive RSS
834 :     feeds.
835 :    
836 :     * R/textdoccol.R (DirSource): Added support for recursive
837 :     traversal of directories.
838 :    
839 :     2006-12-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
840 :    
841 :     * R/textdoccol.R ([[): Loads the document corpus automatically
842 :     into memory upon access.
843 :     (tm_transform, tm_filter): Removed several checks whether the
844 :     document is already loaded ([[ ensures this now).
845 :     (gmane_r_reader): Reader for RSS feeds as provided by the Gmane R
846 :     mailing list archive.
847 :    
848 :     2006-12-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
849 :    
850 :     * R/aobjects.R (TextDocument): Is now a virtual class.
851 :     (Source): Is now a virtual class.
852 :    
853 :     2006-12-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
854 :    
855 :     * R/textdoccol.R (c): Support for an arbitrary number of document
856 :     collections.
857 :    
858 : feinerer 77 2006-11-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
859 :    
860 :     * R/textrepo.R: Updated TextRepository (constructor), append_elem,
861 :     append_meta and remove_meta.
862 :    
863 :     * R/textdoccol.R: Removed modify_metadata method.
864 :    
865 :     * R/textrepo.R: Removed modify_metadata method.
866 :    
867 :     * R/textdoccol.R (remove_meta): Supports removal of document
868 :     collection metadata and document (= in data frame) metadata.
869 :    
870 : feinerer 76 2006-11-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
871 :    
872 :     * R/textdoccol.R (append_doc): Bug fix for handling empty metadata.
873 :    
874 :     * data/crude.rda: Rebuilt.
875 :    
876 :     * data/acq.rda: Rebuilt.
877 :    
878 :     * inst/doc/textmin.Rnw: Updated vignette to reflect code changes.
879 :    
880 :     * R/textdoccol.R ([): Bug fix for subsetting a document
881 :     collection's data frame.
882 :    
883 : feinerer 75 2006-11-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
884 :    
885 :     * R/textdoccol.R: Bug fixes in s_filter. Added full query support
886 :     to s_filter.
887 :    
888 :     * R/textdoccol.R: Local text documents' metadata can now be copied
889 :     to a document collection's data frame with prescind_meta.
890 :    
891 : feinerer 73 2006-11-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
892 :    
893 : feinerer 74 * R/: Text documents' slot metadata is now accessible in s_filter.
894 :    
895 : feinerer 73 * R/: Rewrote s_filter function (has still some restrictions).
896 :    
897 : feinerer 72 2006-11-20 Ingo Feinerer <h0125130@wu-wien.ac.at>
898 :    
899 :     * R/: Various fixes in handling metadata.
900 :    
901 :     * R/: Added update mechanism for text document collections.
902 :    
903 : feinerer 71 2006-11-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
904 :    
905 :     * R/: Merging of document collections now creates a binary tree
906 :     for reconstructing merged document collections.
907 :    
908 :     * R/: Redesign of metadata for document collections.
909 :    
910 : feinerer 70 2006-11-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
911 :    
912 :     * R/: Messages now use \code{ngettext}.
913 :    
914 : feinerer 69 2006-11-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
915 :    
916 :     * R/: Added functions for modifying and removing metadata.
917 :    
918 : feinerer 67 2006-11-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
919 :    
920 :     * man/: Updated some documentation.
921 :    
922 :     * R/: Corrected some connection issues.
923 :    
924 :     * inst/doc: Worked on the vignette.
925 :    
926 : feinerer 65 2006-10-31 Ingo Feinerer <h0125130@wu-wien.ac.at>
927 :    
928 : feinerer 66 * inst/: Added texts and started vignette.
929 :    
930 : feinerer 65 * R/: Final changes based upon David's comments.
931 :    
932 : feinerer 64 2006-10-29 Ingo Feinerer <h0125130@wu-wien.ac.at>
933 :    
934 :     * NAMESPACE: Corrected exports (generic methods need exportMethods
935 :     directives!).
936 :    
937 : feinerer 63 2006-10-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
938 :    
939 :     * R/: Modified the TextDocCol constructur and various parsers. It
940 :     is now modular and supports various file formats via plugins (see
941 :     the new "Source" class).
942 :    
943 : feinerer 62 2006-10-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
944 :    
945 :     * man/: Revised documentation after previous code changes.
946 :    
947 : feinerer 61 2006-10-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
948 :    
949 :     * R/: Remaining changes as discussed with David.
950 :    
951 : feinerer 60 2006-10-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
952 :    
953 :     * R/: Some changes as suggested by David. The rest will follow
954 :     within the next days.
955 :    
956 : feinerer 59 2006-09-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
957 :    
958 :     * man/: Finished documentation.
959 :    
960 : feinerer 58 2006-09-25 Ingo Feinerer <h0125130@wu-wien.ac.at>
961 :    
962 :     * man/: Wrote some documentation.
963 :    
964 : feinerer 56 2006-09-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
965 :    
966 :     * R/: Further syntactic sugar in form of additional assignment and
967 :     accessor methods.
968 :    
969 : feinerer 54 2006-09-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
970 :    
971 :     * R/: Syntactic sugar in form of "length", "show" and "summary"
972 : feinerer 56 operators.
973 : feinerer 54
974 : feinerer 53 2006-08-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
975 :    
976 :     * R/: Diverse updates. Mainly on default operators ("[" or "c")
977 :     and dissimilarities.
978 :    
979 : feinerer 52 2006-08-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
980 :    
981 :     * R/: Added similarity functions.
982 :    
983 :     * data/: Added english stopwords.
984 :    
985 : feinerer 50 2006-08-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
986 :    
987 : feinerer 51 * data/: Examples compiled for new features
988 :    
989 :     * R/: Changes due to new structure.
990 :    
991 : feinerer 50 * NAMESPACE: Corrected namespace to reflect new structure.
992 :    
993 :     * R/termdocmatrix.R: Adapted for new naming scheme.
994 :    
995 : feinerer 49 2006-08-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
996 :    
997 :     * R/textdoccol.R: Adapted code for new class structure. Wrote
998 :     several transform and filter functions operating on text document
999 :     collections (alias text document databases).
1000 :    
1001 :     * R/aobjects.R: Adapted class structure with inheritance,
1002 :     repositories and additional meta data. Loading files on demand is
1003 :     now possible.
1004 :    
1005 : feinerer 48 2006-07-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
1006 :    
1007 :     * R/: Some cosmetic cleanups.
1008 :    
1009 :     * inst/: Removed vignette on clustering. That and much more is now
1010 :     described in the JSS paper on text mining. Based upon that
1011 :     article an elaborated vignette will be incorporated in the future.
1012 :    
1013 : feinerer 42 2006-07-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
1014 :    
1015 :     * R/: Updated generic S4 methods to comply with signature changes
1016 :     in newer versions of R (> 2.3)
1017 :    
1018 : feinerer 41 2006-03-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
1019 :    
1020 :     * ext/R/importRIS.R: Automatic RIS import is now possible.
1021 :    
1022 : feinerer 40 2006-02-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
1023 :    
1024 :     * R/textdoccol.R: Added RIS HTML input format.
1025 :    
1026 : feinerer 39 2006-01-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
1027 :    
1028 :     * R/textdoccol.R: Removed bug that caused invalid text document
1029 :     collections when handling many input files.
1030 :    
1031 : feinerer 36 2006-01-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
1032 :    
1033 : feinerer 37 * R/textdoccol.R: Restructured and extended file import
1034 :     mechanism.
1035 :    
1036 : feinerer 36 * inst/doc/clustering.Rnw: Adapted vignette for use with
1037 :     ReutNews.rda
1038 :    
1039 :     * man/ReutNews.Rd: Documentation for ReutNews.rda
1040 :    
1041 :     * data/ReutNews.rda: A tiny Reuters21578 example data set.
1042 :    
1043 : feinerer 34 2005-12-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
1044 :    
1045 :     * inst/doc/clustering.Rnw: Wrote a small vignette to present the
1046 :     clustering facilities of this package.
1047 :    
1048 : feinerer 33 2005-12-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
1049 :    
1050 :     * R/aobjects.R: Changed package document structure to avoid class
1051 :     dependency problems.
1052 :    
1053 : feinerer 28 2005-12-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
1054 :    
1055 : feinerer 799 * Wrote a script for the ModLewis Split for the Reuters-21578 XML
1056 : feinerer 29 data set.
1057 :    
1058 : feinerer 799 * Finished documentation and reordered directory structure. Now "R
1059 : feinerer 28 CMD check textmin" works without errors.
1060 :    
1061 : feinerer 27 2005-12-04 Ingo Feinerer <h0125130@wu-wien.ac.at>
1062 :    
1063 :     * src/: Various splits can now be easily created for the
1064 :     Reuters21578 data set.
1065 :    
1066 : feinerer 26 2005-12-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
1067 :    
1068 : feinerer 799 * Updated documentation
1069 : feinerer 26
1070 : feinerer 25 2005-11-30 Ingo Feinerer <h0125130@wu-wien.ac.at>
1071 :    
1072 : feinerer 799 * Wrote R documentation for some classes and methods.
1073 : feinerer 25
1074 : feinerer 21 2005-11-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
1075 :    
1076 : feinerer 22 * R/textdoccol.R: Constructor of textdoccol allows import of CSV
1077 :     files. See the questionnaire data/Umfrage.csv for such an example.
1078 : feinerer 23 We are now able to import files in Reuters-21578 XML format.
1079 : feinerer 22
1080 : feinerer 799 * Changed class interfaces in various files. Weighting of the text
1081 : feinerer 21 matrix is now possible.
1082 :    
1083 : feinerer 20 2005-11-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
1084 :    
1085 :     * R/textdoccol.R: One can build term-document matrices if
1086 :     nessecary (with buildTDM(...)) and fill the field tdm from a text
1087 :     document collection with it.
1088 :    
1089 :     * R/textmatrix.R: Wrote S4 class for term-document matrices.
1090 :    
1091 : feinerer 19 2005-11-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
1092 :    
1093 :     * R/textdoccol.R: We now can read in a whole XML file with several
1094 :     news items.
1095 :    
1096 : feinerer 17 2005-11-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
1097 :    
1098 :     * R/textdoccol.R: Set up an S4 class for a collection of text
1099 :     documents. A first attempt to read in XML input (like the RCV1
1100 :     set) was made.
1101 :    
1102 :     * R/textdocument.R: Set up an S4 class for text documents. Wrote
1103 :     some accessor functions.
1104 :    
1105 :     * data/newsitem.xml: Added this XML file for testing purposes. It
1106 :     contains a single news item from the Reuters Corpus Volume 1
1107 :     (RCV1) XML set.
1108 :    
1109 : feinerer 16 2005-10-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
1110 :    
1111 :     * R/textmatrix.R (textmatrix): Removed the transpose of the original
1112 :     textmatrix as k-means clustering provided by R (kmeans) now works on
1113 :     this textmatrix. The result is a k-means text clustering with a
1114 :     similarity measure based upon word frequences.
1115 :    
1116 :     2005-10-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
1117 :    
1118 :     * R/textmatrix.R: Adapted the preprocessing code from the R
1119 :     package "lsa" written by Fridolin Wild to build a document text matrix.
1120 :    
1121 :     2005-10-02 Ingo Feinerer <h0125130@wu-wien.ac.at>
1122 :    
1123 : feinerer 799 * Set up the R Text Mining Package infrastructure.

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