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Revision 1070 - (view) (download)

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

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