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

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