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

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