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Revision 1136 - (view) (download)

1 : feinerer 1136 2011-05-27 Ingo Feinerer <feinerer@logic.at>
2 :    
3 :     * R/weight.R (weightSMART): Implement Cosine and pivoted unique
4 :     normalization.
5 :    
6 : feinerer 1121 2011-02-17 Ingo Feinerer <feinerer@logic.at>
7 :    
8 :     * R/transform.R (stemDocument.PlainTextDocument): Use language
9 :     argument.
10 :    
11 : feinerer 1117 2011-02-04 Ingo Feinerer <feinerer@logic.at>
12 :    
13 :     * R/source.R: Store strings and connections instead of unevaluated
14 :     calls.
15 :    
16 : feinerer 1114 2010-11-26 Ingo Feinerer <feinerer@logic.at>
17 :    
18 :     * R/corpus.R (Corpus): Allow init and exit hooks for readers.
19 :    
20 : feinerer 1108 2010-10-22 Ingo Feinerer <feinerer@logic.at>
21 :    
22 :     * R/matrix.R (.TermDocumentMatrix): Make Weighting an attribute
23 :     (instead of a list element).
24 :    
25 : feinerer 1102 2010-10-16 Ingo Feinerer <feinerer@logic.at>
26 :    
27 :     * R/corpus.R (`[[.VCorpus`, `[[.PCorpus'): Access individual
28 : feinerer 1108 documents by names (fallback to IDs if names are not set).
29 : feinerer 1102
30 : feinerer 1095 2010-08-25 Ingo Feinerer <feinerer@logic.at>
31 :    
32 :     * R/corpus.R (c.Corpus): When concatenating corpora, the argument
33 :     \code{recursive} now determines whether existing corpus meta data
34 :     is used.
35 :    
36 : feinerer 1084 2010-08-06 Ingo Feinerer <feinerer@logic.at>
37 :    
38 :     * R/transform.R: Removed convert_UTF_8(). Use enc2utf8() instead.
39 :    
40 : feinerer 1080 2010-06-17 Ingo Feinerer <feinerer@logic.at>
41 :    
42 :     * R/matrix.R (TermDocumentMatrix): If a dictionary is given do not
43 :     remove terms not occurring in the corpus anymore.
44 :    
45 : feinerer 1075 2010-06-02 Ingo Feinerer <feinerer@logic.at>
46 :    
47 :     * R/plot.R (Zipf_plot, Heaps_plot): Plotting functions for Zipf's
48 :     and Heaps' law.
49 :    
50 : feinerer 1070 2010-05-18 Ingo Feinerer <feinerer@logic.at>
51 :    
52 :     * R/corpus.R (Corpus, PCorpus): Use element names as IDs if
53 :     provided by a source.
54 :    
55 : feinerer 1063 2010-04-09 Ingo Feinerer <feinerer@logic.at>
56 :    
57 :     * R/source.R (.Source): Provide document names.
58 :    
59 : feinerer 1062 2010-04-07 Ingo Feinerer <feinerer@logic.at>
60 :    
61 :     * R/meta.R (`content_or_meta`): Utility function.
62 :    
63 : feinerer 1061 2010-03-19 Ingo Feinerer <feinerer@logic.at>
64 :    
65 :     * R/reader.R (readReut21578XML, readReut21578XMLasPlain): Extract
66 :     TOPICS, LEWISSPLIT, CGISPLIT, and OLDID meta tags.
67 :    
68 : feinerer 1048 2010-03-03 Ingo Feinerer <feinerer@logic.at>
69 :    
70 : feinerer 1051 * R/weight.R (weightTfIdf): Added normalization option.
71 :    
72 : feinerer 1048 * man/tm_tag_score.Rd: Add General Inquirer example for sentiment
73 :     analysis.
74 :    
75 : feinerer 1046 2010-02-25 Ingo Feinerer <feinerer@logic.at>
76 :    
77 :     * R/score.R (tm_tag_score): Compute a score from the number of
78 :     tags matching in a document.
79 :    
80 : feinerer 1041 2010-02-18 Ingo Feinerer <feinerer@logic.at>
81 :    
82 :     * R/complete.R (stemCompletion): New completion heuristics.
83 :    
84 :     2010-02-17 Ingo Feinerer <feinerer@logic.at>
85 :    
86 :     * R/plot.R (plot.TermDocumentMatrix): Memory improvements.
87 :    
88 : feinerer 1040 2010-02-06 Ingo Feinerer <feinerer@logic.at>
89 :    
90 :     * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
91 :     setOldClass(c(..., "list")) works.
92 :    
93 : feinerer 1039 2010-01-22 Ingo Feinerer <feinerer@logic.at>
94 :    
95 :     * R/transform.R (stemDocument.character): In case input is a
96 :     simple character just delegate to the default Snowball stemmer.
97 :    
98 : feinerer 1038 2010-01-15 Ingo Feinerer <feinerer@logic.at>
99 :    
100 :     * R/reader.R (readReut21578XML, readRCV1): Extract more meta
101 :     data.
102 :    
103 : feinerer 1034 2010-01-12 Ingo Feinerer <feinerer@logic.at>
104 :    
105 :     * R/doc.R (`Content<-`): Be careful with names attribute.
106 :    
107 : stefan7th 1032 2010-01-07 Stefan Theussl <stefan.theussl@wu.ac.at>
108 :    
109 :     * R/source.R (DirSource): Improved implementation especially when
110 : feinerer 1042 handling many (> 1M) files.
111 : stefan7th 1032
112 : feinerer 1029 2009-12-22 Ingo Feinerer <feinerer@logic.at>
113 :    
114 :     * R/source.R (getElem.URISource): Use encoding argument.
115 :    
116 : feinerer 1025 2009-12-11 Ingo Feinerer <feinerer@logic.at>
117 :    
118 :     * R/doc.R (setOldClass): Register S3 document classes to be
119 :     recognized by S4 methods.
120 :    
121 : feinerer 1023 2009-11-25 Ingo Feinerer <feinerer@logic.at>
122 :    
123 :     * R/matrix.R (termFreq): Add option to remove punctuation
124 :     characters.
125 :    
126 : feinerer 1022 2009-11-19 Ingo Feinerer <feinerer@logic.at>
127 :    
128 :     * R/matrix.R (c.TermDocumentMatrix): Added combine method for
129 :     merging multiple term-document matrices.
130 :    
131 : feinerer 1020 2009-11-17 Ingo Feinerer <feinerer@logic.at>
132 :    
133 : feinerer 1021 * R/corpus.R (setOldClass): Register S3 corpus classes to be
134 :     recognized by S4 methods.
135 :    
136 : feinerer 1020 * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
137 :     that CRAN Mac OS X builds do not fail any longer.
138 :    
139 : feinerer 1019 2009-11-15 Ingo Feinerer <feinerer@logic.at>
140 :    
141 :     * R/matrix.R (tokenize): Use scan(..., what = "character") instead
142 :     of RWeka:AlphabeticTokenizer() as default.
143 :    
144 : feinerer 1018 2009-11-14 Ingo Feinerer <feinerer@logic.at>
145 :    
146 :     * R/transform.R (removeWords.PlainTextDocument): Fix bug which
147 :     caused words at the beginning or the end of a line not to be removed. Do
148 :     not delete whitespace anymore.
149 :    
150 : feinerer 1017 2009-11-12 Ingo Feinerer <feinerer@logic.at>
151 :    
152 :     * R/source.R (DirSource): Default to working directory if no path
153 :     is specified.
154 :    
155 :     2009-11-11 Ingo Feinerer <feinerer@logic.at>
156 :    
157 :     * R/source.R (DirSource): Stop on empty directories.
158 :    
159 : feinerer 1015 2009-11-07 Ingo Feinerer <feinerer@logic.at>
160 :    
161 :     * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
162 :     named documents.
163 :    
164 : feinerer 1013 2009-10-21 Ingo Feinerer <feinerer@logic.at>
165 :    
166 :     * R/transform.R (removeWords): Improve regular expressions.
167 :    
168 : feinerer 1011 2009-10-19 Ingo Feinerer <feinerer@logic.at>
169 :    
170 :     * R/meta.R (DublinCore): Allow lower case tags.
171 :    
172 : feinerer 1010 2009-10-09 Ingo Feinerer <feinerer@logic.at>
173 :    
174 :     * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
175 :     instead of x$children.
176 :    
177 : feinerer 1007 2009-09-15 Ingo Feinerer <feinerer@logic.at>
178 :    
179 :     * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
180 :    
181 : feinerer 993 2009-09-06 Ingo Feinerer <feinerer@logic.at>
182 :    
183 :     * R/: Use S3 instead of S4 class system.
184 :    
185 : feinerer 982 2009-08-11 Ingo Feinerer <feinerer@logic.at>
186 :    
187 :     * R/reader.R (readMail): Moved to tm.plugin.mail package.
188 :    
189 : feinerer 973 2009-07-04 Ingo Feinerer <feinerer@logic.at>
190 :    
191 :     * R/reader.R (readNewsgroup): Rename to readMail as newsgroup
192 :     postings are basically e-mails with some extra headers.
193 :    
194 : feinerer 972 2009-07-03 Ingo Feinerer <feinerer@logic.at>
195 :    
196 : feinerer 981 * R/transform.R: Move convertMboxEml, removeCitation,
197 :     removeMultipart, and removeSignature to the tm.plugin.mail package
198 :     since they are mainly utility functions (for handling e-mails) and
199 :     not very framework specific.
200 : feinerer 972
201 : feinerer 962 2009-06-28 Ingo Feinerer <feinerer@logic.at>
202 :    
203 :     * man/: Fix documentation.
204 :    
205 : feinerer 960 2009-06-26 Ingo Feinerer <feinerer@logic.at>
206 :    
207 :     * R/reader.R (readReut21578XMLasPlain): New reader which returns a
208 :     plain text document instead of an XML document for texts of the
209 :     Reuters-21578 dataset.
210 :    
211 :     * R/sparse.R: Removed since the slam package is now available on
212 :     CRAN.
213 :    
214 :     * DESCRIPTION (Depends): Add slam package.
215 :    
216 : feinerer 959 2009-06-17 Ingo Feinerer <feinerer@logic.at>
217 :    
218 :     * R/transform.R (stemDoc): Fix character(0) handling.
219 :    
220 : feinerer 957 2009-06-12 Ingo Feinerer <feinerer@logic.at>
221 :    
222 :     * R/doc.R (show): Pretty print.
223 :    
224 : feinerer 954 2009-05-27 Ingo Feinerer <feinerer@logic.at>
225 :    
226 :     * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
227 :     gracefully.
228 :    
229 : feinerer 946 2009-05-13 Ingo Feinerer <feinerer@logic.at>
230 :    
231 :     * R/corpus.R: Make corpus virtual. Implement corpus with standard
232 :     and permanent storage semantics.
233 :    
234 :     * DESCRIPTION: New major release. A *lot* of improvements.
235 :    
236 : feinerer 945 2009-05-04 Ingo Feinerer <feinerer@logic.at>
237 :    
238 :     * NAMESPACE: Export some simple_triplet_matrix functions.
239 :    
240 : feinerer 942 2009-04-28 Ingo Feinerer <feinerer@logic.at>
241 :    
242 :     * R/weight.R: Adapt tf-idf to new matrix format.
243 :    
244 : feinerer 941 2009-04-27 Ingo Feinerer <feinerer@logic.at>
245 :    
246 :     * R/matrix.R: Create two distinct classes for term-document and
247 :     document-term matrices.
248 :    
249 : feinerer 938 2009-04-26 Ingo Feinerer <feinerer@logic.at>
250 :    
251 : feinerer 939 * R/termdocmatrix.R: No longer use Matrix package. This reduces
252 :     package start-up time significantly.
253 : feinerer 938
254 : feinerer 930 2009-04-11 Ingo Feinerer <feinerer@logic.at>
255 :    
256 :     * inst/doc/tm.Rnw: Fix code/documentation mismatch.
257 :    
258 : feinerer 926 2009-04-04 Ingo Feinerer <feinerer@logic.at>
259 :    
260 :     * R/transform.R (tmReduce): Combine multiple maps into one
261 :     transformation.
262 :    
263 : feinerer 923 2009-04-03 Ingo Feinerer <feinerer@logic.at>
264 :    
265 : feinerer 924 * R/weight.R: Remove weightLogical since it does not return a
266 :     dgCMatrix.
267 :    
268 : feinerer 925 * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
269 :     or TermDocumentMatrix instead.
270 : feinerer 923
271 : feinerer 919 2009-03-28 Ingo Feinerer <feinerer@logic.at>
272 :    
273 :     * inst/doc/extensions.Rnw: Finished vignette.
274 :    
275 : feinerer 918 2009-03-27 Ingo Feinerer <feinerer@logic.at>
276 :    
277 :     * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
278 :     DocumentTermMatrix representations.
279 :    
280 : feinerer 912 2009-03-23 Ingo Feinerer <feinerer@logic.at>
281 :    
282 :     * R/reader.R (readXML): New reader for arbitrary XML files.
283 :    
284 : feinerer 909 2009-03-22 Ingo Feinerer <feinerer@logic.at>
285 :    
286 : feinerer 910 * R/source.R (CSVSource): Defunct (use DataframeSource instead).
287 : feinerer 911 (XMLSource): New XMLSource class for arbitrary XML files.
288 :     (Source): New slot Vectorized.
289 : feinerer 910
290 : feinerer 904 2009-03-21 Ingo Feinerer <feinerer@logic.at>
291 :    
292 : feinerer 939 * R/reader.R (readTabular): Experimental reader for tabular data
293 :     structures which can be customized via user-defined mappings.
294 : feinerer 908
295 : feinerer 905 * R/reader.R: Always use UTC time zone.
296 :    
297 : feinerer 904 * R/AAA.R (.onLoad): No longer try to start a MPI cluster.
298 :    
299 : feinerer 903 2009-03-20 Ingo Feinerer <feinerer@logic.at>
300 :    
301 :     * R/reader.R (readDOC): Options can be passed over to antiword.
302 :    
303 :     * R/reader.R (readPDF): Options can be passed over to pdfinfo and
304 :     pdftotext.
305 :    
306 : feinerer 895 2009-03-10 Ingo Feinerer <feinerer@logic.at>
307 :    
308 :     * R/source.R (DirSource): Add pattern and ignore.case arguments
309 :     which are internally passed over to list.files().
310 :    
311 : feinerer 893 2009-03-02 Ingo Feinerer <feinerer@logic.at>
312 :    
313 :     * inst/doc/tm.Rnw: Suppress pointless loading message.
314 :    
315 : feinerer 886 2009-01-29 Ingo Feinerer <feinerer@logic.at>
316 :    
317 :     * DESCRIPTION: Speed up package loading (via moving packages not
318 :     strictly necessary for normal operation to Suggests instead of
319 :     Depends).
320 :    
321 : feinerer 882 2009-01-08 Ingo Feinerer <feinerer@logic.at>
322 :    
323 :     * R/reader.R (readNewsgroup): The date format is now configurable.
324 :    
325 : feinerer 881 2008-12-20 Ingo Feinerer <feinerer@logic.at>
326 :    
327 :     * R/preprocess.R (convertMboxEml): Fix off-by-one error.
328 :    
329 : feinerer 877 2008-12-16 Ingo Feinerer <feinerer@logic.at>
330 :    
331 :     * R/termdocmatrix.R (TermDocMatrix): Sort row indices.
332 :    
333 : feinerer 875 2008-12-06 Ingo Feinerer <feinerer@logic.at>
334 :    
335 : feinerer 876 * R/source.R (DataframeSource): New source class for data frames.
336 :    
337 : feinerer 875 * R/source.R: Fixed non-standard call evaluation.
338 :    
339 : feinerer 874 2008-11-29 Ingo Feinerer <feinerer@logic.at>
340 :    
341 :     * R/source.R (URISource): New source class for a single document.
342 :    
343 : feinerer 873 2008-11-27 Ingo Feinerer <feinerer@logic.at>
344 :    
345 :     * R/source.R: Refactoring.
346 :    
347 : feinerer 872 2008-11-25 Ingo Feinerer <feinerer@logic.at>
348 :    
349 :     * R/AAA.R (.onLoad, .Last): Use tryCatch() to handle misconfigured
350 :     Rmpi installations more gracefully.
351 :    
352 : feinerer 869 2008-11-08 Ingo Feinerer <feinerer@logic.at>
353 :    
354 :     * R/source.R (Source): Add Length slot.
355 :    
356 :     2008-11-06 Ingo Feinerer <feinerer@logic.at>
357 :    
358 :     * R/AAA.R: Unify duplicated .onLoad function.
359 :    
360 : feinerer 868 2008-11-03 Ingo Feinerer <feinerer@logic.at>
361 :    
362 :     * DESCRIPTION (Suggests): Added Rmpi.
363 :    
364 : feinerer 866 2008-11-02 Ingo Feinerer <feinerer@logic.at>
365 :    
366 :     * R/source.R (getElem): Fix 'no visible binding' warning.
367 :    
368 :     * man/WeightFunction.Rd: Fix signature.
369 :    
370 : feinerer 865 2008-08-03 Ingo Feinerer <feinerer@logic.at>
371 :    
372 :     * R/weight.R: Introduce name abbreviations for weighting functions.
373 :    
374 : feinerer 861 2008-07-24 Ingo Feinerer <feinerer@logic.at>
375 :    
376 :     * R/AAA.R (.onLoad, .Last): Start and stop MPI cluster.
377 :    
378 :     * R/cluster.R: Provide convenience functions for using a MPI
379 :     cluster.
380 :    
381 :     * R/termdocmatrix.R (TermDocMatrix): Use MPI cluster if
382 :     available.
383 :    
384 :     * R/textdoccol.R (tmIndex, tmFilter, tmMap): Use MPI cluster if
385 :     available.
386 :    
387 : feinerer 860 2008-07-17 Ingo Feinerer <feinerer@logic.at>
388 :    
389 :     * R/textdoccol.R (lapply): Removed debug print out.
390 :    
391 : feinerer 856 2008-06-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
392 :    
393 :     * R/reader.R (readRCV1): Improved meta data extraction from
394 :     Reuters Corpus Volume 1 documents.
395 :    
396 : feinerer 855 2008-05-25 Ingo Feinerer <h0125130@wu-wien.ac.at>
397 :    
398 :     * R/transform.R: Ensure that all mappings preserve multiline
399 :     structures.
400 :    
401 : feinerer 854 2008-05-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
402 :    
403 :     * R/filter.R: Every filter has now an attribute indicating whether
404 :     it sould be applied to document level (doclevel).
405 :    
406 :     * R/textdoccol.R (tmFilter): Set searchFullText as new default
407 :     filter.
408 :    
409 : feinerer 838 2008-04-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
410 :    
411 :     * R/transform.R (replacePatterns): Replaced removeWords by
412 :     replacePatterns. Suggested by Christian Buchta.
413 :    
414 :     * R/textdoccol.R (inspect): Improved formatting.
415 :    
416 : feinerer 836 2008-04-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
417 :    
418 :     * inst/CITATION: Updated JSS article information.
419 :    
420 :     * R/textdoccol.R (setAs): Added coerce method from list to
421 :     corpus.
422 :    
423 :     * R/meta.R (meta): Improved meta data handling.
424 :    
425 : feinerer 833 2008-03-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
426 :    
427 :     * R/textdoccol.R (materialize, tmMap): Improvements suggested by
428 :     Christian Buchta.
429 :    
430 :     * inst/CITATION: Added template to include JSS article reference.
431 :    
432 : feinerer 831 2008-03-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
433 :    
434 :     * R/textdoccol.R (tmMap): Introduced lazy mapping.
435 :    
436 : feinerer 832 * R/source.R: Added VectorSource.
437 :    
438 : feinerer 825 2008-02-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
439 :    
440 :     * man/: Language codes should be in ISO 639-1 format.
441 :    
442 : feinerer 826 * R/textdoccol.R (asPlain): Preserve local meta data.
443 :    
444 : feinerer 819 2008-01-31 Ingo Feinerer <h0125130@wu-wien.ac.at>
445 :    
446 :     * R/textdoccol.R (writeCorpus): Function for writing a corpus
447 :     containing plain text documents to disk.
448 :    
449 : feinerer 817 2008-01-30 Ingo Feinerer <h0125130@wu-wien.ac.at>
450 :    
451 :     * R/termdocmatrix.R (TermDocMatrix): Ensure that dimnames are
452 :     always set correctly.
453 :    
454 :     * R/textdoccol.R: Set load = TRUE as default for load on demand
455 :     since in most cases this is the wanted behaviour.
456 :    
457 : feinerer 816 2008-01-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
458 :    
459 :     * R/: Renamed TextDocCol to Corpus, and Corpus to Content.
460 :    
461 :     * DESCRIPTION: Updated Version to 0.3 due to core name changes.
462 :    
463 : feinerer 813 2008-01-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
464 :    
465 :     * R/meta.R (meta): New function for consistent access to meta data
466 :     of document collections, repositories, and texts.
467 :    
468 : feinerer 810 2008-01-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
469 :    
470 :     * R/: Better support for encodings.
471 :    
472 : feinerer 808 2008-01-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
473 :    
474 :     * R/textdoccol.R (TextDocCol): Fixed bug regarding default reader
475 :     selection when no reader argument is given.
476 :    
477 : feinerer 807 2008-01-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
478 :    
479 :     * R/source.R (CSVSource): Now uses read.csv instead of scan
480 :     internally.
481 :    
482 : feinerer 806 2008-01-02 Ingo Feinerer <h0125130@wu-wien.ac.at>
483 :    
484 :     * R/reader.R (getReaders): Returns available reader functions.
485 :    
486 :     * R/termdocmatrix.R (TermDocMatrix): Set new modular constructor
487 :     as default.
488 :    
489 : feinerer 802 2007-12-02 Ingo Feinerer <h0125130@wu-wien.ac.at>
490 :    
491 :     * R/stopwords.R (stopwords): Shortened code, removed codetools
492 :     variable warnings.
493 :    
494 :     * man/: Documentation for showMeta, added an example for tmMap.
495 :    
496 :     * inst/doc/tm.Rnw: Updated vignette, comments on MS word reader,
497 :     some minor typos fixed.
498 :    
499 : feinerer 801 2007-12-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
500 :    
501 :     * R/aobjects.R (showMeta): Added method for pretty printing a
502 :     text document's meta data.
503 :    
504 : feinerer 799 2007-11-29 Ingo Feinerer <h0125130@wu-wien.ac.at>
505 :    
506 :     * R/textdoccol.R (TextDocCol): Better handling of empty
507 :     arguments.
508 :    
509 :     * NAMESPACE: Exported readDOC.
510 :    
511 : feinerer 800 * man/completeStems.Rd: Added an example.
512 :    
513 : feinerer 797 2007-11-18 Ingo Feinerer <h0125130@wu-wien.ac.at>
514 : feinerer 796
515 : feinerer 797 * R/stopwords.R (stopwords): Look up .dat files at every
516 :     call. Allows users to modify stopword .dat files interactively.
517 :    
518 :     2007-11-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
519 :    
520 : feinerer 796 * R/termdocmatrix.R (termFreq): Correct processing of empty
521 :     documents.
522 :    
523 : feinerer 795 2007-10-27 Ingo Feinerer <h0125130@wu-wien.ac.at>
524 :    
525 :     * man/: Updated documentation.
526 :    
527 : feinerer 790 2007-10-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
528 :    
529 : feinerer 793 * R/complete.R (completeStems): Completes (heuristically) word
530 :     stems.
531 :    
532 : feinerer 790 * R/termdocmatrix.R (TermDocMatrix2): New modular
533 :     constructor.
534 :    
535 :     * NAMESPACE: Exported termFreq.
536 :    
537 : feinerer 789 2007-10-16 Ingo Feinerer <h0125130@wu-wien.ac.at>
538 :    
539 :     * R/reader.R (readDOC): Added MS Word reader (using antiword).
540 :    
541 : feinerer 788 2007-10-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
542 :    
543 :     * R/weight.R: Weighting functions for TermDocMatrix.
544 :    
545 : feinerer 785 2007-10-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
546 :    
547 :     * R/termdocmatrix.R (dimnames, colnames, rownames): Wrapper
548 :     functions for accessing dimension, column, and row names.
549 :    
550 :     * R/plot.R (plot.TermDocMatrix): Plot correlations between terms.
551 :    
552 : feinerer 779 2007-09-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
553 :    
554 :     * man/removePunctuation.Rd: Added documentation. Function also exported to NAMESPACE.
555 :    
556 : feinerer 777 2007-08-28 Ingo Feinerer <h0125130@wu-wien.ac.at>
557 :    
558 :     * R/fungen.R: Use S4 class for function generators instead of S3 attributes.
559 :    
560 : feinerer 776 2007-07-29 Ingo Feinerer <h0125130@wu-wien.ac.at>
561 :    
562 :     * R/reader.R (readPDF): Removed manual checks for pdftotext and
563 :     pdfinfo. The system call gives a warning anyway.
564 :    
565 : feinerer 775 2007-07-28 Ingo Feinerer <h0125130@wu-wien.ac.at>
566 :    
567 :     * R/textdoccol.R (asPlain): Conversion from
568 :     StructuredTextDocuments to PlainTextDocuments.
569 :    
570 : feinerer 773 2007-07-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
571 :    
572 : feinerer 774 * R/termdocmatrix.R: Added convenience methods ("[", nrow, ncol)
573 :     for accessing term-document matrices.
574 :    
575 : feinerer 773 * inst/doc/tm.Rnw: readPDF is only called if pdftotext and pdfinfo
576 :     are installed.
577 :    
578 : feinerer 770 2007-07-17 Ingo Feinerer <h0125130@wu-wien.ac.at>
579 :    
580 :     * R/termdocmatrix.R (TermDocMatrix): Improved efficiency. Kudos to
581 :     Christian Buchta.
582 :    
583 : feinerer 768 2007-07-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
584 :    
585 :     * inst/doc/tm.Rnw: Update vignette (readPDF, readHTML, preprocessReut21578XML).
586 :    
587 : feinerer 766 2007-07-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
588 :    
589 : feinerer 767 * R/reader.R (readHTML): Added very simple HTML reader to obtain StructuredTextDocuments.
590 :    
591 : feinerer 766 * R/reader.R (readPDF): Added PDF reader.
592 :    
593 : feinerer 765 2007-07-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
594 :    
595 :     * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
596 :    
597 :     * inst/stopwords/english.dat: Added the term "yes" to stopwords.
598 :    
599 :     * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
600 :    
601 :     * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
602 :    
603 : feinerer 763 2007-07-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
604 :    
605 :     * R/distmeasure.R (dissimilarity): Replaced dists call from
606 :     package cba by new dist call from package proxy.
607 :    
608 : feinerer 761 2007-07-10 Ingo Feinerer <h0125130@wu-wien.ac.at>
609 :    
610 :     * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
611 :    
612 : feinerer 760 2007-06-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
613 :    
614 :     * R/termdocmatrix.R: require() uses the quietly option to suppress
615 :     loading messages.
616 :    
617 : feinerer 758 2007-06-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
618 :    
619 :     * R/dictionary.R: Added dictionary support.
620 :    
621 : feinerer 757 2007-06-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
622 :    
623 :     * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
624 :     documents. This simplifies some functions, e.g., asPlain.
625 :    
626 : feinerer 756 2007-06-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
627 :    
628 :     * inst/doc/tm.Rnw: Fixed some typos in vignette.
629 :    
630 : feinerer 755 2007-06-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
631 :    
632 :     * R/textdoccol.R (replaceWords): Added method to replace a set of
633 :     words by a single word. Useful for synonyms.
634 :    
635 : feinerer 754 2007-05-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
636 :    
637 :     * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
638 :    
639 : feinerer 752 2007-05-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
640 :    
641 :     * R/termdocmatrix.R (textvector): Small fix for dealing with empty
642 :     vectors. Thanks to Ariel Maguyon for his error report.
643 :     (removeSparseTerms): New function to remove columns from a
644 :     term-document matrix exceeding a sparse factor.
645 :    
646 : feinerer 751 2007-05-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
647 :    
648 :     * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
649 :    
650 : feinerer 750 2007-05-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
651 :    
652 :     * man/sFilter.Rd: Corrected documentation on statement format (use
653 :     '==' instead of '=').
654 :    
655 : feinerer 749 2007-05-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
656 :    
657 :     * R/aobjects.R (StructuredTextDocument): Inherits from
658 :     TextDocument.
659 :    
660 : feinerer 748 2007-05-04 Ingo Feinerer <h0125130@wu-wien.ac.at>
661 :    
662 :     * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
663 :     on sparse matrices as proposed by Martin Maechler.
664 :    
665 : feinerer 747 2007-04-27 Ingo Feinerer <h0125130@wu-wien.ac.at>
666 :    
667 :     * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
668 :     \pkg{filehash} version makes them deprecated.
669 :    
670 : feinerer 744 2007-04-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
671 :    
672 :     * R/termdocmatrix.R (textvector): Stemming is now performed before
673 :     erasing stopwords.
674 :     (weightMatrix): Adapted to handle sparse matrices.
675 :     (TermDocMatrix): Sparse matrix is now efficiently built by
676 :     direct stepwise insertion of row values into it.
677 :    
678 : feinerer 741 2007-04-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
679 :    
680 :     * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
681 :     due to ongoing problems. For our purposes the latter is as useful
682 :     as the replaced package.
683 :    
684 : feinerer 738 2007-04-20 Ingo Feinerer <h0125130@wu-wien.ac.at>
685 :    
686 :     * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.
687 :    
688 :     * man/TermDocMatrix.Rd: Remove deprecated \code{language} argument.
689 :    
690 : feinerer 737 2007-04-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
691 :    
692 :     * R/resolve.R (resolveISOCode): Added ISO 639-1 codes for
693 :     languages with available stopwords.
694 :    
695 : feinerer 736 2007-04-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
696 :    
697 :     * inst/doc/tm.Rnw: Minor corrections in the vignette.
698 :    
699 : feinerer 731 2007-04-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
700 :    
701 : feinerer 732 * DESCRIPTION: Update to version 0.2, since a lot of new features
702 :     have been integrated.
703 : feinerer 731
704 : feinerer 732 * inst/stopwords: Updated existing stopwords and added stopwords
705 :     for various other languages.
706 :    
707 : feinerer 729 2007-04-10 Ingo Feinerer <h0125130@wu-wien.ac.at>
708 :    
709 : feinerer 730 * man/: Updated documentation.
710 :    
711 : feinerer 729 * Work/testDb.R: Script to test database stuff.
712 :    
713 :     * R/: Fixed various database related bugs. Seems to be rather
714 :     useable now, i.e., consider as alpha status for now.
715 :    
716 : feinerer 727 2007-04-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
717 :    
718 :     * R/: Fixed some bugs related to database support.
719 :    
720 : feinerer 726 2007-04-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
721 :    
722 :     * man/: Added a lot of examples to the manuals.
723 :    
724 : feinerer 725 2007-04-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
725 :    
726 :     * man/: Updated parts of the documentation.
727 :    
728 :     * R/textdoccol.R (asPlain): Added conversion from newsgroup
729 :     documents to plain text documents.
730 :    
731 : feinerer 722 2007-04-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
732 :    
733 : feinerer 724 * R/textdoccol.R: Finished experimental database support. Not yet
734 :     intensively tested.
735 :    
736 : feinerer 723 * R/source.R: Now each source has a default reader.
737 :    
738 : feinerer 722 * R/reader.R: \code{FunctionGenerator} is now an attribute, not a
739 :     class anymore.
740 :    
741 :     * R/plaintextdoc.R: Custom show method for plain text documents.
742 :    
743 :     * R/aobjects.R: Added a class for structured text documents.
744 :    
745 :     * R/reader.R: Replaced remaining \code{parser} occurrences with
746 :     \code{reader}.
747 :    
748 :     * R/textdoccol.R (summary): Indent tags.
749 :    
750 : feinerer 725 * R/textdoccol.R (removePunctuation): Transform method to remove
751 : feinerer 722 punctuation marks.
752 :    
753 : feinerer 721 2007-03-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
754 :    
755 :     * R/textdoccol.R (sFilter): Simplified sFilter significantly by
756 :     using prescindMeta().
757 :    
758 : feinerer 719 2007-03-18 Ingo Feinerer <h0125130@wu-wien.ac.at>
759 :    
760 :     * R/textdoccol.R: Improved database support.
761 :    
762 : feinerer 717 2007-03-16 Ingo Feinerer <h0125130@wu-wien.ac.at>
763 :    
764 : feinerer 718 * R/termdocmatrix.R (TermDocMatrix): Uses sparse matrices.
765 :    
766 : feinerer 717 * R/resolve.R (resolveISOcode): Extracts the language from a ISO
767 :     language code.
768 :    
769 :     * R/textdoccol.R (TextDocCol): Refactored several parser arguments
770 :     into parserControl argument.
771 :    
772 :     * R/aobjects.R (TextDocument): Introduced the "Language" slot.
773 :    
774 : feinerer 713 2007-03-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
775 :    
776 : feinerer 715 * Work/tmDataSetup.R: The datasets acq and crude can now be
777 :     created on the fly.
778 :    
779 : feinerer 713 * R/stopwords.R: Introduced a function returning the stopwords for
780 :     a given language (English, German and French at the moment)
781 :    
782 :     * R/textdoccol.R (stemDoc): Stemming uses Rstem if available,
783 :     otherwise falls back to Snowball package.
784 :    
785 : feinerer 711 2007-01-30 Ingo Feinerer <h0125130@wu-wien.ac.at>
786 :    
787 :     * man/dissimilarity-methods.Rd: Make clear that any method offered
788 :     by "dists" from package "cba" can be used.
789 :    
790 : feinerer 708 2007-01-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
791 :    
792 : feinerer 710 * inst/doc/tm.Rnw: Fixed quotes-appearing-as-boxes-bug according
793 :     to Kurt's latex suggestion. Removed points and underscores in
794 :     variable names for consistent naming.
795 :    
796 : feinerer 708 * DESCRIPTION: Update to version 0.1-2.
797 :    
798 :     * man/TextRepository.Rd: Fixed bug in documentation.
799 :    
800 : feinerer 704 2007-01-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
801 :    
802 :     * DESCRIPTION: Update to version 0.1-1.
803 :    
804 : feinerer 702 2007-01-09 Ingo Feinerer <h0125130@wu-wien.ac.at>
805 :    
806 :     * R/textdoccol.R (stemDoc): Use Rstem::wordStem instead of
807 :     wordStem.
808 :    
809 : feinerer 698 2007-01-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
810 :    
811 :     * R/: Changes due to Kurt's review.
812 :    
813 : feinerer 694 2006-12-31 Ingo Feinerer <h0125130@wu-wien.ac.at>
814 :    
815 :     * R/: Implemented improvements based upon comments by David
816 :     Meyer.
817 :    
818 : feinerer 691 2006-12-17 Ingo Feinerer <h0125130@wu-wien.ac.at>
819 :    
820 :     * inst/doc/: Rewrote vignette.
821 :    
822 :     * man/: Improved documentation.
823 :    
824 : feinerer 690 2006-12-16 Ingo Feinerer <h0125130@wu-wien.ac.at>
825 :    
826 :     * man/: Updated documentation.
827 :    
828 :     * DESCRIPTION: Changed package name to "tm". Updated version to
829 :     0.1 for first CRAN release.
830 :    
831 :     * inst/texts/gmane.comp.lang.r.general.mbox: mbox Gmane R mailing
832 :     list archive example.
833 :    
834 :     * inst/texts/gmane.comp.lang.r.gr.rdf: RSS Gmane R mailing list
835 :     archive example.
836 :    
837 :     * R/preprocess.R (convert_mbox_eml): A simple e-mail converter
838 :     from (several mails per box) mbox format to (single mail per file)
839 :     eml format.
840 :    
841 : feinerer 689 2006-12-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
842 :    
843 :     * data/crude.rda: Rebuilt.
844 :    
845 :     * data/acq.rda: Rebuilt.
846 :    
847 :     * R/reader.R: Factored out reader and parser methods from
848 :     textdoccol.R.
849 :    
850 :     * R/source.R: Factored out Source methods from aobjects.R and
851 :     textdoccol.R.
852 :     (GmaneRSource): Encapsulates Gmane R mailing list archive RSS
853 :     feeds.
854 :    
855 :     * R/textdoccol.R (DirSource): Added support for recursive
856 :     traversal of directories.
857 :    
858 :     2006-12-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
859 :    
860 :     * R/textdoccol.R ([[): Loads the document corpus automatically
861 :     into memory upon access.
862 :     (tm_transform, tm_filter): Removed several checks whether the
863 :     document is already loaded ([[ ensures this now).
864 :     (gmane_r_reader): Reader for RSS feeds as provided by the Gmane R
865 :     mailing list archive.
866 :    
867 :     2006-12-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
868 :    
869 :     * R/aobjects.R (TextDocument): Is now a virtual class.
870 :     (Source): Is now a virtual class.
871 :    
872 :     2006-12-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
873 :    
874 :     * R/textdoccol.R (c): Support for an arbitrary number of document
875 :     collections.
876 :    
877 : feinerer 77 2006-11-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
878 :    
879 :     * R/textrepo.R: Updated TextRepository (constructor), append_elem,
880 :     append_meta and remove_meta.
881 :    
882 :     * R/textdoccol.R: Removed modify_metadata method.
883 :    
884 :     * R/textrepo.R: Removed modify_metadata method.
885 :    
886 :     * R/textdoccol.R (remove_meta): Supports removal of document
887 :     collection metadata and document (= in data frame) metadata.
888 :    
889 : feinerer 76 2006-11-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
890 :    
891 :     * R/textdoccol.R (append_doc): Bug fix for handling empty metadata.
892 :    
893 :     * data/crude.rda: Rebuilt.
894 :    
895 :     * data/acq.rda: Rebuilt.
896 :    
897 :     * inst/doc/textmin.Rnw: Updated vignette to reflect code changes.
898 :    
899 :     * R/textdoccol.R ([): Bug fix for subsetting a document
900 :     collection's data frame.
901 :    
902 : feinerer 75 2006-11-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
903 :    
904 :     * R/textdoccol.R: Bug fixes in s_filter. Added full query support
905 :     to s_filter.
906 :    
907 :     * R/textdoccol.R: Local text documents' metadata can now be copied
908 :     to a document collection's data frame with prescind_meta.
909 :    
910 : feinerer 73 2006-11-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
911 :    
912 : feinerer 74 * R/: Text documents' slot metadata is now accessible in s_filter.
913 :    
914 : feinerer 73 * R/: Rewrote s_filter function (has still some restrictions).
915 :    
916 : feinerer 72 2006-11-20 Ingo Feinerer <h0125130@wu-wien.ac.at>
917 :    
918 :     * R/: Various fixes in handling metadata.
919 :    
920 :     * R/: Added update mechanism for text document collections.
921 :    
922 : feinerer 71 2006-11-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
923 :    
924 :     * R/: Merging of document collections now creates a binary tree
925 :     for reconstructing merged document collections.
926 :    
927 :     * R/: Redesign of metadata for document collections.
928 :    
929 : feinerer 70 2006-11-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
930 :    
931 :     * R/: Messages now use \code{ngettext}.
932 :    
933 : feinerer 69 2006-11-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
934 :    
935 :     * R/: Added functions for modifying and removing metadata.
936 :    
937 : feinerer 67 2006-11-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
938 :    
939 :     * man/: Updated some documentation.
940 :    
941 :     * R/: Corrected some connection issues.
942 :    
943 :     * inst/doc: Worked on the vignette.
944 :    
945 : feinerer 65 2006-10-31 Ingo Feinerer <h0125130@wu-wien.ac.at>
946 :    
947 : feinerer 66 * inst/: Added texts and started vignette.
948 :    
949 : feinerer 65 * R/: Final changes based upon David's comments.
950 :    
951 : feinerer 64 2006-10-29 Ingo Feinerer <h0125130@wu-wien.ac.at>
952 :    
953 :     * NAMESPACE: Corrected exports (generic methods need exportMethods
954 :     directives!).
955 :    
956 : feinerer 63 2006-10-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
957 :    
958 :     * R/: Modified the TextDocCol constructur and various parsers. It
959 :     is now modular and supports various file formats via plugins (see
960 :     the new "Source" class).
961 :    
962 : feinerer 62 2006-10-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
963 :    
964 :     * man/: Revised documentation after previous code changes.
965 :    
966 : feinerer 61 2006-10-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
967 :    
968 :     * R/: Remaining changes as discussed with David.
969 :    
970 : feinerer 60 2006-10-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
971 :    
972 :     * R/: Some changes as suggested by David. The rest will follow
973 :     within the next days.
974 :    
975 : feinerer 59 2006-09-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
976 :    
977 :     * man/: Finished documentation.
978 :    
979 : feinerer 58 2006-09-25 Ingo Feinerer <h0125130@wu-wien.ac.at>
980 :    
981 :     * man/: Wrote some documentation.
982 :    
983 : feinerer 56 2006-09-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
984 :    
985 :     * R/: Further syntactic sugar in form of additional assignment and
986 :     accessor methods.
987 :    
988 : feinerer 54 2006-09-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
989 :    
990 :     * R/: Syntactic sugar in form of "length", "show" and "summary"
991 : feinerer 56 operators.
992 : feinerer 54
993 : feinerer 53 2006-08-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
994 :    
995 :     * R/: Diverse updates. Mainly on default operators ("[" or "c")
996 :     and dissimilarities.
997 :    
998 : feinerer 52 2006-08-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
999 :    
1000 :     * R/: Added similarity functions.
1001 :    
1002 :     * data/: Added english stopwords.
1003 :    
1004 : feinerer 50 2006-08-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
1005 :    
1006 : feinerer 51 * data/: Examples compiled for new features
1007 :    
1008 :     * R/: Changes due to new structure.
1009 :    
1010 : feinerer 50 * NAMESPACE: Corrected namespace to reflect new structure.
1011 :    
1012 :     * R/termdocmatrix.R: Adapted for new naming scheme.
1013 :    
1014 : feinerer 49 2006-08-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
1015 :    
1016 :     * R/textdoccol.R: Adapted code for new class structure. Wrote
1017 :     several transform and filter functions operating on text document
1018 :     collections (alias text document databases).
1019 :    
1020 :     * R/aobjects.R: Adapted class structure with inheritance,
1021 :     repositories and additional meta data. Loading files on demand is
1022 :     now possible.
1023 :    
1024 : feinerer 48 2006-07-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
1025 :    
1026 :     * R/: Some cosmetic cleanups.
1027 :    
1028 :     * inst/: Removed vignette on clustering. That and much more is now
1029 :     described in the JSS paper on text mining. Based upon that
1030 :     article an elaborated vignette will be incorporated in the future.
1031 :    
1032 : feinerer 42 2006-07-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
1033 :    
1034 :     * R/: Updated generic S4 methods to comply with signature changes
1035 :     in newer versions of R (> 2.3)
1036 :    
1037 : feinerer 41 2006-03-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
1038 :    
1039 :     * ext/R/importRIS.R: Automatic RIS import is now possible.
1040 :    
1041 : feinerer 40 2006-02-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
1042 :    
1043 :     * R/textdoccol.R: Added RIS HTML input format.
1044 :    
1045 : feinerer 39 2006-01-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
1046 :    
1047 :     * R/textdoccol.R: Removed bug that caused invalid text document
1048 :     collections when handling many input files.
1049 :    
1050 : feinerer 36 2006-01-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
1051 :    
1052 : feinerer 37 * R/textdoccol.R: Restructured and extended file import
1053 :     mechanism.
1054 :    
1055 : feinerer 36 * inst/doc/clustering.Rnw: Adapted vignette for use with
1056 :     ReutNews.rda
1057 :    
1058 :     * man/ReutNews.Rd: Documentation for ReutNews.rda
1059 :    
1060 :     * data/ReutNews.rda: A tiny Reuters21578 example data set.
1061 :    
1062 : feinerer 34 2005-12-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
1063 :    
1064 :     * inst/doc/clustering.Rnw: Wrote a small vignette to present the
1065 :     clustering facilities of this package.
1066 :    
1067 : feinerer 33 2005-12-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
1068 :    
1069 :     * R/aobjects.R: Changed package document structure to avoid class
1070 :     dependency problems.
1071 :    
1072 : feinerer 28 2005-12-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
1073 :    
1074 : feinerer 799 * Wrote a script for the ModLewis Split for the Reuters-21578 XML
1075 : feinerer 29 data set.
1076 :    
1077 : feinerer 799 * Finished documentation and reordered directory structure. Now "R
1078 : feinerer 28 CMD check textmin" works without errors.
1079 :    
1080 : feinerer 27 2005-12-04 Ingo Feinerer <h0125130@wu-wien.ac.at>
1081 :    
1082 :     * src/: Various splits can now be easily created for the
1083 :     Reuters21578 data set.
1084 :    
1085 : feinerer 26 2005-12-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
1086 :    
1087 : feinerer 799 * Updated documentation
1088 : feinerer 26
1089 : feinerer 25 2005-11-30 Ingo Feinerer <h0125130@wu-wien.ac.at>
1090 :    
1091 : feinerer 799 * Wrote R documentation for some classes and methods.
1092 : feinerer 25
1093 : feinerer 21 2005-11-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
1094 :    
1095 : feinerer 22 * R/textdoccol.R: Constructor of textdoccol allows import of CSV
1096 :     files. See the questionnaire data/Umfrage.csv for such an example.
1097 : feinerer 23 We are now able to import files in Reuters-21578 XML format.
1098 : feinerer 22
1099 : feinerer 799 * Changed class interfaces in various files. Weighting of the text
1100 : feinerer 21 matrix is now possible.
1101 :    
1102 : feinerer 20 2005-11-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
1103 :    
1104 :     * R/textdoccol.R: One can build term-document matrices if
1105 :     nessecary (with buildTDM(...)) and fill the field tdm from a text
1106 :     document collection with it.
1107 :    
1108 :     * R/textmatrix.R: Wrote S4 class for term-document matrices.
1109 :    
1110 : feinerer 19 2005-11-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
1111 :    
1112 :     * R/textdoccol.R: We now can read in a whole XML file with several
1113 :     news items.
1114 :    
1115 : feinerer 17 2005-11-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
1116 :    
1117 :     * R/textdoccol.R: Set up an S4 class for a collection of text
1118 :     documents. A first attempt to read in XML input (like the RCV1
1119 :     set) was made.
1120 :    
1121 :     * R/textdocument.R: Set up an S4 class for text documents. Wrote
1122 :     some accessor functions.
1123 :    
1124 :     * data/newsitem.xml: Added this XML file for testing purposes. It
1125 :     contains a single news item from the Reuters Corpus Volume 1
1126 :     (RCV1) XML set.
1127 :    
1128 : feinerer 16 2005-10-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
1129 :    
1130 :     * R/textmatrix.R (textmatrix): Removed the transpose of the original
1131 :     textmatrix as k-means clustering provided by R (kmeans) now works on
1132 :     this textmatrix. The result is a k-means text clustering with a
1133 :     similarity measure based upon word frequences.
1134 :    
1135 :     2005-10-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
1136 :    
1137 :     * R/textmatrix.R: Adapted the preprocessing code from the R
1138 :     package "lsa" written by Fridolin Wild to build a document text matrix.
1139 :    
1140 :     2005-10-02 Ingo Feinerer <h0125130@wu-wien.ac.at>
1141 :    
1142 : feinerer 799 * Set up the R Text Mining Package infrastructure.

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