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Revision 1084 - (view) (download)

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

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