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1 : feinerer 1151 2011-11-17 Ingo Feinerer <feinerer@logic.at>
2 :    
3 :     * R/matrix (termFreq): Allow local option \code{bounds$local} to
4 :     restrict how often a term may appear in each document (generalizes
5 :     \code{minDocFreq}). Similarly the local option \code{wordLenghts}
6 :     for word length bounds (generalizes \code{minWordLength}).
7 :    
8 :     * R/matrix.R (TermDocumentMatrix.VCorpus): New global option
9 :     \code{bounds$global} for restricting how often a term is allowed
10 :     to appear in different documents.
11 :    
12 :     * R/matrix.R (TermDocumentMatrix.VCorpus): Distinguish between
13 :     local options delegated internally to termFreq() and global
14 :     options which are processed by the term-document matrix
15 :     constructor itself.
16 :    
17 : feinerer 1150 2011-11-15 Ingo Feinerer <feinerer@logic.at>
18 :    
19 :     * man/getTokenizers.Rd: Document getTokenizers().
20 :    
21 :     * man/tokenizer.Rd: Document MC_tokenizer() and scan_tokenizer().
22 :    
23 : feinerer 1149 2011-11-04 Ingo Feinerer <feinerer@logic.at>
24 :    
25 :     * man/matrix.Rd: Document as.TermDocumentMatrix.term_frequency.
26 :    
27 : feinerer 1150 * man/combine.Rd: Document c.term_frequency().
28 : feinerer 1149
29 : feinerer 1147 2011-10-11 Ingo Feinerer <feinerer@logic.at>
30 :    
31 :     * R/meta.R (`meta<-.Corpus`): Assume that the replacement value
32 :     can be accessed via '[' and not '[['.
33 :    
34 : feinerer 1139 2011-08-24 Ingo Feinerer <feinerer@logic.at>
35 :    
36 :     * R/stopwords.R (stopwords): Raise an error if no stopwords are
37 :     available for requested language. Suggested by Derek M Jones.
38 :    
39 : feinerer 1136 2011-05-27 Ingo Feinerer <feinerer@logic.at>
40 :    
41 :     * R/weight.R (weightSMART): Implement Cosine and pivoted unique
42 :     normalization.
43 :    
44 : feinerer 1121 2011-02-17 Ingo Feinerer <feinerer@logic.at>
45 :    
46 :     * R/transform.R (stemDocument.PlainTextDocument): Use language
47 :     argument.
48 :    
49 : feinerer 1117 2011-02-04 Ingo Feinerer <feinerer@logic.at>
50 :    
51 :     * R/source.R: Store strings and connections instead of unevaluated
52 :     calls.
53 :    
54 : feinerer 1114 2010-11-26 Ingo Feinerer <feinerer@logic.at>
55 :    
56 :     * R/corpus.R (Corpus): Allow init and exit hooks for readers.
57 :    
58 : feinerer 1108 2010-10-22 Ingo Feinerer <feinerer@logic.at>
59 :    
60 :     * R/matrix.R (.TermDocumentMatrix): Make Weighting an attribute
61 :     (instead of a list element).
62 :    
63 : feinerer 1102 2010-10-16 Ingo Feinerer <feinerer@logic.at>
64 :    
65 :     * R/corpus.R (`[[.VCorpus`, `[[.PCorpus'): Access individual
66 : feinerer 1108 documents by names (fallback to IDs if names are not set).
67 : feinerer 1102
68 : feinerer 1095 2010-08-25 Ingo Feinerer <feinerer@logic.at>
69 :    
70 :     * R/corpus.R (c.Corpus): When concatenating corpora, the argument
71 :     \code{recursive} now determines whether existing corpus meta data
72 :     is used.
73 :    
74 : feinerer 1084 2010-08-06 Ingo Feinerer <feinerer@logic.at>
75 :    
76 :     * R/transform.R: Removed convert_UTF_8(). Use enc2utf8() instead.
77 :    
78 : feinerer 1080 2010-06-17 Ingo Feinerer <feinerer@logic.at>
79 :    
80 :     * R/matrix.R (TermDocumentMatrix): If a dictionary is given do not
81 :     remove terms not occurring in the corpus anymore.
82 :    
83 : feinerer 1075 2010-06-02 Ingo Feinerer <feinerer@logic.at>
84 :    
85 :     * R/plot.R (Zipf_plot, Heaps_plot): Plotting functions for Zipf's
86 :     and Heaps' law.
87 :    
88 : feinerer 1070 2010-05-18 Ingo Feinerer <feinerer@logic.at>
89 :    
90 :     * R/corpus.R (Corpus, PCorpus): Use element names as IDs if
91 :     provided by a source.
92 :    
93 : feinerer 1063 2010-04-09 Ingo Feinerer <feinerer@logic.at>
94 :    
95 :     * R/source.R (.Source): Provide document names.
96 :    
97 : feinerer 1062 2010-04-07 Ingo Feinerer <feinerer@logic.at>
98 :    
99 :     * R/meta.R (`content_or_meta`): Utility function.
100 :    
101 : feinerer 1061 2010-03-19 Ingo Feinerer <feinerer@logic.at>
102 :    
103 :     * R/reader.R (readReut21578XML, readReut21578XMLasPlain): Extract
104 :     TOPICS, LEWISSPLIT, CGISPLIT, and OLDID meta tags.
105 :    
106 : feinerer 1048 2010-03-03 Ingo Feinerer <feinerer@logic.at>
107 :    
108 : feinerer 1051 * R/weight.R (weightTfIdf): Added normalization option.
109 :    
110 : feinerer 1048 * man/tm_tag_score.Rd: Add General Inquirer example for sentiment
111 :     analysis.
112 :    
113 : feinerer 1046 2010-02-25 Ingo Feinerer <feinerer@logic.at>
114 :    
115 :     * R/score.R (tm_tag_score): Compute a score from the number of
116 :     tags matching in a document.
117 :    
118 : feinerer 1041 2010-02-18 Ingo Feinerer <feinerer@logic.at>
119 :    
120 :     * R/complete.R (stemCompletion): New completion heuristics.
121 :    
122 :     2010-02-17 Ingo Feinerer <feinerer@logic.at>
123 :    
124 :     * R/plot.R (plot.TermDocumentMatrix): Memory improvements.
125 :    
126 : feinerer 1040 2010-02-06 Ingo Feinerer <feinerer@logic.at>
127 :    
128 :     * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
129 :     setOldClass(c(..., "list")) works.
130 :    
131 : feinerer 1039 2010-01-22 Ingo Feinerer <feinerer@logic.at>
132 :    
133 :     * R/transform.R (stemDocument.character): In case input is a
134 :     simple character just delegate to the default Snowball stemmer.
135 :    
136 : feinerer 1038 2010-01-15 Ingo Feinerer <feinerer@logic.at>
137 :    
138 :     * R/reader.R (readReut21578XML, readRCV1): Extract more meta
139 :     data.
140 :    
141 : feinerer 1034 2010-01-12 Ingo Feinerer <feinerer@logic.at>
142 :    
143 :     * R/doc.R (`Content<-`): Be careful with names attribute.
144 :    
145 : stefan7th 1032 2010-01-07 Stefan Theussl <stefan.theussl@wu.ac.at>
146 :    
147 :     * R/source.R (DirSource): Improved implementation especially when
148 : feinerer 1042 handling many (> 1M) files.
149 : stefan7th 1032
150 : feinerer 1029 2009-12-22 Ingo Feinerer <feinerer@logic.at>
151 :    
152 :     * R/source.R (getElem.URISource): Use encoding argument.
153 :    
154 : feinerer 1025 2009-12-11 Ingo Feinerer <feinerer@logic.at>
155 :    
156 :     * R/doc.R (setOldClass): Register S3 document classes to be
157 :     recognized by S4 methods.
158 :    
159 : feinerer 1023 2009-11-25 Ingo Feinerer <feinerer@logic.at>
160 :    
161 :     * R/matrix.R (termFreq): Add option to remove punctuation
162 :     characters.
163 :    
164 : feinerer 1022 2009-11-19 Ingo Feinerer <feinerer@logic.at>
165 :    
166 :     * R/matrix.R (c.TermDocumentMatrix): Added combine method for
167 :     merging multiple term-document matrices.
168 :    
169 : feinerer 1020 2009-11-17 Ingo Feinerer <feinerer@logic.at>
170 :    
171 : feinerer 1021 * R/corpus.R (setOldClass): Register S3 corpus classes to be
172 :     recognized by S4 methods.
173 :    
174 : feinerer 1020 * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
175 :     that CRAN Mac OS X builds do not fail any longer.
176 :    
177 : feinerer 1019 2009-11-15 Ingo Feinerer <feinerer@logic.at>
178 :    
179 :     * R/matrix.R (tokenize): Use scan(..., what = "character") instead
180 :     of RWeka:AlphabeticTokenizer() as default.
181 :    
182 : feinerer 1018 2009-11-14 Ingo Feinerer <feinerer@logic.at>
183 :    
184 :     * R/transform.R (removeWords.PlainTextDocument): Fix bug which
185 :     caused words at the beginning or the end of a line not to be removed. Do
186 :     not delete whitespace anymore.
187 :    
188 : feinerer 1017 2009-11-12 Ingo Feinerer <feinerer@logic.at>
189 :    
190 :     * R/source.R (DirSource): Default to working directory if no path
191 :     is specified.
192 :    
193 :     2009-11-11 Ingo Feinerer <feinerer@logic.at>
194 :    
195 :     * R/source.R (DirSource): Stop on empty directories.
196 :    
197 : feinerer 1015 2009-11-07 Ingo Feinerer <feinerer@logic.at>
198 :    
199 :     * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
200 :     named documents.
201 :    
202 : feinerer 1013 2009-10-21 Ingo Feinerer <feinerer@logic.at>
203 :    
204 :     * R/transform.R (removeWords): Improve regular expressions.
205 :    
206 : feinerer 1011 2009-10-19 Ingo Feinerer <feinerer@logic.at>
207 :    
208 :     * R/meta.R (DublinCore): Allow lower case tags.
209 :    
210 : feinerer 1010 2009-10-09 Ingo Feinerer <feinerer@logic.at>
211 :    
212 :     * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
213 :     instead of x$children.
214 :    
215 : feinerer 1007 2009-09-15 Ingo Feinerer <feinerer@logic.at>
216 :    
217 :     * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
218 :    
219 : feinerer 993 2009-09-06 Ingo Feinerer <feinerer@logic.at>
220 :    
221 :     * R/: Use S3 instead of S4 class system.
222 :    
223 : feinerer 982 2009-08-11 Ingo Feinerer <feinerer@logic.at>
224 :    
225 :     * R/reader.R (readMail): Moved to tm.plugin.mail package.
226 :    
227 : feinerer 973 2009-07-04 Ingo Feinerer <feinerer@logic.at>
228 :    
229 :     * R/reader.R (readNewsgroup): Rename to readMail as newsgroup
230 :     postings are basically e-mails with some extra headers.
231 :    
232 : feinerer 972 2009-07-03 Ingo Feinerer <feinerer@logic.at>
233 :    
234 : feinerer 981 * R/transform.R: Move convertMboxEml, removeCitation,
235 :     removeMultipart, and removeSignature to the tm.plugin.mail package
236 :     since they are mainly utility functions (for handling e-mails) and
237 :     not very framework specific.
238 : feinerer 972
239 : feinerer 962 2009-06-28 Ingo Feinerer <feinerer@logic.at>
240 :    
241 :     * man/: Fix documentation.
242 :    
243 : feinerer 960 2009-06-26 Ingo Feinerer <feinerer@logic.at>
244 :    
245 :     * R/reader.R (readReut21578XMLasPlain): New reader which returns a
246 :     plain text document instead of an XML document for texts of the
247 :     Reuters-21578 dataset.
248 :    
249 :     * R/sparse.R: Removed since the slam package is now available on
250 :     CRAN.
251 :    
252 :     * DESCRIPTION (Depends): Add slam package.
253 :    
254 : feinerer 959 2009-06-17 Ingo Feinerer <feinerer@logic.at>
255 :    
256 :     * R/transform.R (stemDoc): Fix character(0) handling.
257 :    
258 : feinerer 957 2009-06-12 Ingo Feinerer <feinerer@logic.at>
259 :    
260 :     * R/doc.R (show): Pretty print.
261 :    
262 : feinerer 954 2009-05-27 Ingo Feinerer <feinerer@logic.at>
263 :    
264 :     * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
265 :     gracefully.
266 :    
267 : feinerer 946 2009-05-13 Ingo Feinerer <feinerer@logic.at>
268 :    
269 :     * R/corpus.R: Make corpus virtual. Implement corpus with standard
270 :     and permanent storage semantics.
271 :    
272 :     * DESCRIPTION: New major release. A *lot* of improvements.
273 :    
274 : feinerer 945 2009-05-04 Ingo Feinerer <feinerer@logic.at>
275 :    
276 :     * NAMESPACE: Export some simple_triplet_matrix functions.
277 :    
278 : feinerer 942 2009-04-28 Ingo Feinerer <feinerer@logic.at>
279 :    
280 :     * R/weight.R: Adapt tf-idf to new matrix format.
281 :    
282 : feinerer 941 2009-04-27 Ingo Feinerer <feinerer@logic.at>
283 :    
284 :     * R/matrix.R: Create two distinct classes for term-document and
285 :     document-term matrices.
286 :    
287 : feinerer 938 2009-04-26 Ingo Feinerer <feinerer@logic.at>
288 :    
289 : feinerer 939 * R/termdocmatrix.R: No longer use Matrix package. This reduces
290 :     package start-up time significantly.
291 : feinerer 938
292 : feinerer 930 2009-04-11 Ingo Feinerer <feinerer@logic.at>
293 :    
294 :     * inst/doc/tm.Rnw: Fix code/documentation mismatch.
295 :    
296 : feinerer 926 2009-04-04 Ingo Feinerer <feinerer@logic.at>
297 :    
298 :     * R/transform.R (tmReduce): Combine multiple maps into one
299 :     transformation.
300 :    
301 : feinerer 923 2009-04-03 Ingo Feinerer <feinerer@logic.at>
302 :    
303 : feinerer 924 * R/weight.R: Remove weightLogical since it does not return a
304 :     dgCMatrix.
305 :    
306 : feinerer 925 * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
307 :     or TermDocumentMatrix instead.
308 : feinerer 923
309 : feinerer 919 2009-03-28 Ingo Feinerer <feinerer@logic.at>
310 :    
311 :     * inst/doc/extensions.Rnw: Finished vignette.
312 :    
313 : feinerer 918 2009-03-27 Ingo Feinerer <feinerer@logic.at>
314 :    
315 :     * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
316 :     DocumentTermMatrix representations.
317 :    
318 : feinerer 912 2009-03-23 Ingo Feinerer <feinerer@logic.at>
319 :    
320 :     * R/reader.R (readXML): New reader for arbitrary XML files.
321 :    
322 : feinerer 909 2009-03-22 Ingo Feinerer <feinerer@logic.at>
323 :    
324 : feinerer 910 * R/source.R (CSVSource): Defunct (use DataframeSource instead).
325 : feinerer 911 (XMLSource): New XMLSource class for arbitrary XML files.
326 :     (Source): New slot Vectorized.
327 : feinerer 910
328 : feinerer 904 2009-03-21 Ingo Feinerer <feinerer@logic.at>
329 :    
330 : feinerer 939 * R/reader.R (readTabular): Experimental reader for tabular data
331 :     structures which can be customized via user-defined mappings.
332 : feinerer 908
333 : feinerer 905 * R/reader.R: Always use UTC time zone.
334 :    
335 : feinerer 904 * R/AAA.R (.onLoad): No longer try to start a MPI cluster.
336 :    
337 : feinerer 903 2009-03-20 Ingo Feinerer <feinerer@logic.at>
338 :    
339 :     * R/reader.R (readDOC): Options can be passed over to antiword.
340 :    
341 :     * R/reader.R (readPDF): Options can be passed over to pdfinfo and
342 :     pdftotext.
343 :    
344 : feinerer 895 2009-03-10 Ingo Feinerer <feinerer@logic.at>
345 :    
346 :     * R/source.R (DirSource): Add pattern and ignore.case arguments
347 :     which are internally passed over to list.files().
348 :    
349 : feinerer 893 2009-03-02 Ingo Feinerer <feinerer@logic.at>
350 :    
351 :     * inst/doc/tm.Rnw: Suppress pointless loading message.
352 :    
353 : feinerer 886 2009-01-29 Ingo Feinerer <feinerer@logic.at>
354 :    
355 :     * DESCRIPTION: Speed up package loading (via moving packages not
356 :     strictly necessary for normal operation to Suggests instead of
357 :     Depends).
358 :    
359 : feinerer 882 2009-01-08 Ingo Feinerer <feinerer@logic.at>
360 :    
361 :     * R/reader.R (readNewsgroup): The date format is now configurable.
362 :    
363 : feinerer 881 2008-12-20 Ingo Feinerer <feinerer@logic.at>
364 :    
365 :     * R/preprocess.R (convertMboxEml): Fix off-by-one error.
366 :    
367 : feinerer 877 2008-12-16 Ingo Feinerer <feinerer@logic.at>
368 :    
369 :     * R/termdocmatrix.R (TermDocMatrix): Sort row indices.
370 :    
371 : feinerer 875 2008-12-06 Ingo Feinerer <feinerer@logic.at>
372 :    
373 : feinerer 876 * R/source.R (DataframeSource): New source class for data frames.
374 :    
375 : feinerer 875 * R/source.R: Fixed non-standard call evaluation.
376 :    
377 : feinerer 874 2008-11-29 Ingo Feinerer <feinerer@logic.at>
378 :    
379 :     * R/source.R (URISource): New source class for a single document.
380 :    
381 : feinerer 873 2008-11-27 Ingo Feinerer <feinerer@logic.at>
382 :    
383 :     * R/source.R: Refactoring.
384 :    
385 : feinerer 872 2008-11-25 Ingo Feinerer <feinerer@logic.at>
386 :    
387 :     * R/AAA.R (.onLoad, .Last): Use tryCatch() to handle misconfigured
388 :     Rmpi installations more gracefully.
389 :    
390 : feinerer 869 2008-11-08 Ingo Feinerer <feinerer@logic.at>
391 :    
392 :     * R/source.R (Source): Add Length slot.
393 :    
394 :     2008-11-06 Ingo Feinerer <feinerer@logic.at>
395 :    
396 :     * R/AAA.R: Unify duplicated .onLoad function.
397 :    
398 : feinerer 868 2008-11-03 Ingo Feinerer <feinerer@logic.at>
399 :    
400 :     * DESCRIPTION (Suggests): Added Rmpi.
401 :    
402 : feinerer 866 2008-11-02 Ingo Feinerer <feinerer@logic.at>
403 :    
404 :     * R/source.R (getElem): Fix 'no visible binding' warning.
405 :    
406 :     * man/WeightFunction.Rd: Fix signature.
407 :    
408 : feinerer 865 2008-08-03 Ingo Feinerer <feinerer@logic.at>
409 :    
410 :     * R/weight.R: Introduce name abbreviations for weighting functions.
411 :    
412 : feinerer 861 2008-07-24 Ingo Feinerer <feinerer@logic.at>
413 :    
414 :     * R/AAA.R (.onLoad, .Last): Start and stop MPI cluster.
415 :    
416 :     * R/cluster.R: Provide convenience functions for using a MPI
417 :     cluster.
418 :    
419 :     * R/termdocmatrix.R (TermDocMatrix): Use MPI cluster if
420 :     available.
421 :    
422 :     * R/textdoccol.R (tmIndex, tmFilter, tmMap): Use MPI cluster if
423 :     available.
424 :    
425 : feinerer 860 2008-07-17 Ingo Feinerer <feinerer@logic.at>
426 :    
427 :     * R/textdoccol.R (lapply): Removed debug print out.
428 :    
429 : feinerer 856 2008-06-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
430 :    
431 :     * R/reader.R (readRCV1): Improved meta data extraction from
432 :     Reuters Corpus Volume 1 documents.
433 :    
434 : feinerer 855 2008-05-25 Ingo Feinerer <h0125130@wu-wien.ac.at>
435 :    
436 :     * R/transform.R: Ensure that all mappings preserve multiline
437 :     structures.
438 :    
439 : feinerer 854 2008-05-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
440 :    
441 :     * R/filter.R: Every filter has now an attribute indicating whether
442 :     it sould be applied to document level (doclevel).
443 :    
444 :     * R/textdoccol.R (tmFilter): Set searchFullText as new default
445 :     filter.
446 :    
447 : feinerer 838 2008-04-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
448 :    
449 :     * R/transform.R (replacePatterns): Replaced removeWords by
450 :     replacePatterns. Suggested by Christian Buchta.
451 :    
452 :     * R/textdoccol.R (inspect): Improved formatting.
453 :    
454 : feinerer 836 2008-04-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
455 :    
456 :     * inst/CITATION: Updated JSS article information.
457 :    
458 :     * R/textdoccol.R (setAs): Added coerce method from list to
459 :     corpus.
460 :    
461 :     * R/meta.R (meta): Improved meta data handling.
462 :    
463 : feinerer 833 2008-03-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
464 :    
465 :     * R/textdoccol.R (materialize, tmMap): Improvements suggested by
466 :     Christian Buchta.
467 :    
468 :     * inst/CITATION: Added template to include JSS article reference.
469 :    
470 : feinerer 831 2008-03-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
471 :    
472 :     * R/textdoccol.R (tmMap): Introduced lazy mapping.
473 :    
474 : feinerer 832 * R/source.R: Added VectorSource.
475 :    
476 : feinerer 825 2008-02-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
477 :    
478 :     * man/: Language codes should be in ISO 639-1 format.
479 :    
480 : feinerer 826 * R/textdoccol.R (asPlain): Preserve local meta data.
481 :    
482 : feinerer 819 2008-01-31 Ingo Feinerer <h0125130@wu-wien.ac.at>
483 :    
484 :     * R/textdoccol.R (writeCorpus): Function for writing a corpus
485 :     containing plain text documents to disk.
486 :    
487 : feinerer 817 2008-01-30 Ingo Feinerer <h0125130@wu-wien.ac.at>
488 :    
489 :     * R/termdocmatrix.R (TermDocMatrix): Ensure that dimnames are
490 :     always set correctly.
491 :    
492 :     * R/textdoccol.R: Set load = TRUE as default for load on demand
493 :     since in most cases this is the wanted behaviour.
494 :    
495 : feinerer 816 2008-01-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
496 :    
497 :     * R/: Renamed TextDocCol to Corpus, and Corpus to Content.
498 :    
499 :     * DESCRIPTION: Updated Version to 0.3 due to core name changes.
500 :    
501 : feinerer 813 2008-01-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
502 :    
503 :     * R/meta.R (meta): New function for consistent access to meta data
504 :     of document collections, repositories, and texts.
505 :    
506 : feinerer 810 2008-01-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
507 :    
508 :     * R/: Better support for encodings.
509 :    
510 : feinerer 808 2008-01-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
511 :    
512 :     * R/textdoccol.R (TextDocCol): Fixed bug regarding default reader
513 :     selection when no reader argument is given.
514 :    
515 : feinerer 807 2008-01-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
516 :    
517 :     * R/source.R (CSVSource): Now uses read.csv instead of scan
518 :     internally.
519 :    
520 : feinerer 806 2008-01-02 Ingo Feinerer <h0125130@wu-wien.ac.at>
521 :    
522 :     * R/reader.R (getReaders): Returns available reader functions.
523 :    
524 :     * R/termdocmatrix.R (TermDocMatrix): Set new modular constructor
525 :     as default.
526 :    
527 : feinerer 802 2007-12-02 Ingo Feinerer <h0125130@wu-wien.ac.at>
528 :    
529 :     * R/stopwords.R (stopwords): Shortened code, removed codetools
530 :     variable warnings.
531 :    
532 :     * man/: Documentation for showMeta, added an example for tmMap.
533 :    
534 :     * inst/doc/tm.Rnw: Updated vignette, comments on MS word reader,
535 :     some minor typos fixed.
536 :    
537 : feinerer 801 2007-12-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
538 :    
539 :     * R/aobjects.R (showMeta): Added method for pretty printing a
540 :     text document's meta data.
541 :    
542 : feinerer 799 2007-11-29 Ingo Feinerer <h0125130@wu-wien.ac.at>
543 :    
544 :     * R/textdoccol.R (TextDocCol): Better handling of empty
545 :     arguments.
546 :    
547 :     * NAMESPACE: Exported readDOC.
548 :    
549 : feinerer 800 * man/completeStems.Rd: Added an example.
550 :    
551 : feinerer 797 2007-11-18 Ingo Feinerer <h0125130@wu-wien.ac.at>
552 : feinerer 796
553 : feinerer 797 * R/stopwords.R (stopwords): Look up .dat files at every
554 :     call. Allows users to modify stopword .dat files interactively.
555 :    
556 :     2007-11-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
557 :    
558 : feinerer 796 * R/termdocmatrix.R (termFreq): Correct processing of empty
559 :     documents.
560 :    
561 : feinerer 795 2007-10-27 Ingo Feinerer <h0125130@wu-wien.ac.at>
562 :    
563 :     * man/: Updated documentation.
564 :    
565 : feinerer 790 2007-10-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
566 :    
567 : feinerer 793 * R/complete.R (completeStems): Completes (heuristically) word
568 :     stems.
569 :    
570 : feinerer 790 * R/termdocmatrix.R (TermDocMatrix2): New modular
571 :     constructor.
572 :    
573 :     * NAMESPACE: Exported termFreq.
574 :    
575 : feinerer 789 2007-10-16 Ingo Feinerer <h0125130@wu-wien.ac.at>
576 :    
577 :     * R/reader.R (readDOC): Added MS Word reader (using antiword).
578 :    
579 : feinerer 788 2007-10-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
580 :    
581 :     * R/weight.R: Weighting functions for TermDocMatrix.
582 :    
583 : feinerer 785 2007-10-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
584 :    
585 :     * R/termdocmatrix.R (dimnames, colnames, rownames): Wrapper
586 :     functions for accessing dimension, column, and row names.
587 :    
588 :     * R/plot.R (plot.TermDocMatrix): Plot correlations between terms.
589 :    
590 : feinerer 779 2007-09-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
591 :    
592 :     * man/removePunctuation.Rd: Added documentation. Function also exported to NAMESPACE.
593 :    
594 : feinerer 777 2007-08-28 Ingo Feinerer <h0125130@wu-wien.ac.at>
595 :    
596 :     * R/fungen.R: Use S4 class for function generators instead of S3 attributes.
597 :    
598 : feinerer 776 2007-07-29 Ingo Feinerer <h0125130@wu-wien.ac.at>
599 :    
600 :     * R/reader.R (readPDF): Removed manual checks for pdftotext and
601 :     pdfinfo. The system call gives a warning anyway.
602 :    
603 : feinerer 775 2007-07-28 Ingo Feinerer <h0125130@wu-wien.ac.at>
604 :    
605 :     * R/textdoccol.R (asPlain): Conversion from
606 :     StructuredTextDocuments to PlainTextDocuments.
607 :    
608 : feinerer 773 2007-07-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
609 :    
610 : feinerer 774 * R/termdocmatrix.R: Added convenience methods ("[", nrow, ncol)
611 :     for accessing term-document matrices.
612 :    
613 : feinerer 773 * inst/doc/tm.Rnw: readPDF is only called if pdftotext and pdfinfo
614 :     are installed.
615 :    
616 : feinerer 770 2007-07-17 Ingo Feinerer <h0125130@wu-wien.ac.at>
617 :    
618 :     * R/termdocmatrix.R (TermDocMatrix): Improved efficiency. Kudos to
619 :     Christian Buchta.
620 :    
621 : feinerer 768 2007-07-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
622 :    
623 :     * inst/doc/tm.Rnw: Update vignette (readPDF, readHTML, preprocessReut21578XML).
624 :    
625 : feinerer 766 2007-07-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
626 :    
627 : feinerer 767 * R/reader.R (readHTML): Added very simple HTML reader to obtain StructuredTextDocuments.
628 :    
629 : feinerer 766 * R/reader.R (readPDF): Added PDF reader.
630 :    
631 : feinerer 765 2007-07-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
632 :    
633 :     * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
634 :    
635 :     * inst/stopwords/english.dat: Added the term "yes" to stopwords.
636 :    
637 :     * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
638 :    
639 :     * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
640 :    
641 : feinerer 763 2007-07-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
642 :    
643 :     * R/distmeasure.R (dissimilarity): Replaced dists call from
644 :     package cba by new dist call from package proxy.
645 :    
646 : feinerer 761 2007-07-10 Ingo Feinerer <h0125130@wu-wien.ac.at>
647 :    
648 :     * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
649 :    
650 : feinerer 760 2007-06-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
651 :    
652 :     * R/termdocmatrix.R: require() uses the quietly option to suppress
653 :     loading messages.
654 :    
655 : feinerer 758 2007-06-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
656 :    
657 :     * R/dictionary.R: Added dictionary support.
658 :    
659 : feinerer 757 2007-06-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
660 :    
661 :     * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
662 :     documents. This simplifies some functions, e.g., asPlain.
663 :    
664 : feinerer 756 2007-06-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
665 :    
666 :     * inst/doc/tm.Rnw: Fixed some typos in vignette.
667 :    
668 : feinerer 755 2007-06-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
669 :    
670 :     * R/textdoccol.R (replaceWords): Added method to replace a set of
671 :     words by a single word. Useful for synonyms.
672 :    
673 : feinerer 754 2007-05-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
674 :    
675 :     * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
676 :    
677 : feinerer 752 2007-05-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
678 :    
679 :     * R/termdocmatrix.R (textvector): Small fix for dealing with empty
680 :     vectors. Thanks to Ariel Maguyon for his error report.
681 :     (removeSparseTerms): New function to remove columns from a
682 :     term-document matrix exceeding a sparse factor.
683 :    
684 : feinerer 751 2007-05-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
685 :    
686 :     * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
687 :    
688 : feinerer 750 2007-05-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
689 :    
690 :     * man/sFilter.Rd: Corrected documentation on statement format (use
691 :     '==' instead of '=').
692 :    
693 : feinerer 749 2007-05-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
694 :    
695 :     * R/aobjects.R (StructuredTextDocument): Inherits from
696 :     TextDocument.
697 :    
698 : feinerer 748 2007-05-04 Ingo Feinerer <h0125130@wu-wien.ac.at>
699 :    
700 :     * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
701 :     on sparse matrices as proposed by Martin Maechler.
702 :    
703 : feinerer 747 2007-04-27 Ingo Feinerer <h0125130@wu-wien.ac.at>
704 :    
705 :     * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
706 :     \pkg{filehash} version makes them deprecated.
707 :    
708 : feinerer 744 2007-04-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
709 :    
710 :     * R/termdocmatrix.R (textvector): Stemming is now performed before
711 :     erasing stopwords.
712 :     (weightMatrix): Adapted to handle sparse matrices.
713 :     (TermDocMatrix): Sparse matrix is now efficiently built by
714 :     direct stepwise insertion of row values into it.
715 :    
716 : feinerer 741 2007-04-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
717 :    
718 :     * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
719 :     due to ongoing problems. For our purposes the latter is as useful
720 :     as the replaced package.
721 :    
722 : feinerer 738 2007-04-20 Ingo Feinerer <h0125130@wu-wien.ac.at>
723 :    
724 :     * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.
725 :    
726 :     * man/TermDocMatrix.Rd: Remove deprecated \code{language} argument.
727 :    
728 : feinerer 737 2007-04-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
729 :    
730 :     * R/resolve.R (resolveISOCode): Added ISO 639-1 codes for
731 :     languages with available stopwords.
732 :    
733 : feinerer 736 2007-04-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
734 :    
735 :     * inst/doc/tm.Rnw: Minor corrections in the vignette.
736 :    
737 : feinerer 731 2007-04-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
738 :    
739 : feinerer 732 * DESCRIPTION: Update to version 0.2, since a lot of new features
740 :     have been integrated.
741 : feinerer 731
742 : feinerer 732 * inst/stopwords: Updated existing stopwords and added stopwords
743 :     for various other languages.
744 :    
745 : feinerer 729 2007-04-10 Ingo Feinerer <h0125130@wu-wien.ac.at>
746 :    
747 : feinerer 730 * man/: Updated documentation.
748 :    
749 : feinerer 729 * Work/testDb.R: Script to test database stuff.
750 :    
751 :     * R/: Fixed various database related bugs. Seems to be rather
752 :     useable now, i.e., consider as alpha status for now.
753 :    
754 : feinerer 727 2007-04-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
755 :    
756 :     * R/: Fixed some bugs related to database support.
757 :    
758 : feinerer 726 2007-04-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
759 :    
760 :     * man/: Added a lot of examples to the manuals.
761 :    
762 : feinerer 725 2007-04-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
763 :    
764 :     * man/: Updated parts of the documentation.
765 :    
766 :     * R/textdoccol.R (asPlain): Added conversion from newsgroup
767 :     documents to plain text documents.
768 :    
769 : feinerer 722 2007-04-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
770 :    
771 : feinerer 724 * R/textdoccol.R: Finished experimental database support. Not yet
772 :     intensively tested.
773 :    
774 : feinerer 723 * R/source.R: Now each source has a default reader.
775 :    
776 : feinerer 722 * R/reader.R: \code{FunctionGenerator} is now an attribute, not a
777 :     class anymore.
778 :    
779 :     * R/plaintextdoc.R: Custom show method for plain text documents.
780 :    
781 :     * R/aobjects.R: Added a class for structured text documents.
782 :    
783 :     * R/reader.R: Replaced remaining \code{parser} occurrences with
784 :     \code{reader}.
785 :    
786 :     * R/textdoccol.R (summary): Indent tags.
787 :    
788 : feinerer 725 * R/textdoccol.R (removePunctuation): Transform method to remove
789 : feinerer 722 punctuation marks.
790 :    
791 : feinerer 721 2007-03-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
792 :    
793 :     * R/textdoccol.R (sFilter): Simplified sFilter significantly by
794 :     using prescindMeta().
795 :    
796 : feinerer 719 2007-03-18 Ingo Feinerer <h0125130@wu-wien.ac.at>
797 :    
798 :     * R/textdoccol.R: Improved database support.
799 :    
800 : feinerer 717 2007-03-16 Ingo Feinerer <h0125130@wu-wien.ac.at>
801 :    
802 : feinerer 718 * R/termdocmatrix.R (TermDocMatrix): Uses sparse matrices.
803 :    
804 : feinerer 717 * R/resolve.R (resolveISOcode): Extracts the language from a ISO
805 :     language code.
806 :    
807 :     * R/textdoccol.R (TextDocCol): Refactored several parser arguments
808 :     into parserControl argument.
809 :    
810 :     * R/aobjects.R (TextDocument): Introduced the "Language" slot.
811 :    
812 : feinerer 713 2007-03-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
813 :    
814 : feinerer 715 * Work/tmDataSetup.R: The datasets acq and crude can now be
815 :     created on the fly.
816 :    
817 : feinerer 713 * R/stopwords.R: Introduced a function returning the stopwords for
818 :     a given language (English, German and French at the moment)
819 :    
820 :     * R/textdoccol.R (stemDoc): Stemming uses Rstem if available,
821 :     otherwise falls back to Snowball package.
822 :    
823 : feinerer 711 2007-01-30 Ingo Feinerer <h0125130@wu-wien.ac.at>
824 :    
825 :     * man/dissimilarity-methods.Rd: Make clear that any method offered
826 :     by "dists" from package "cba" can be used.
827 :    
828 : feinerer 708 2007-01-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
829 :    
830 : feinerer 710 * inst/doc/tm.Rnw: Fixed quotes-appearing-as-boxes-bug according
831 :     to Kurt's latex suggestion. Removed points and underscores in
832 :     variable names for consistent naming.
833 :    
834 : feinerer 708 * DESCRIPTION: Update to version 0.1-2.
835 :    
836 :     * man/TextRepository.Rd: Fixed bug in documentation.
837 :    
838 : feinerer 704 2007-01-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
839 :    
840 :     * DESCRIPTION: Update to version 0.1-1.
841 :    
842 : feinerer 702 2007-01-09 Ingo Feinerer <h0125130@wu-wien.ac.at>
843 :    
844 :     * R/textdoccol.R (stemDoc): Use Rstem::wordStem instead of
845 :     wordStem.
846 :    
847 : feinerer 698 2007-01-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
848 :    
849 :     * R/: Changes due to Kurt's review.
850 :    
851 : feinerer 694 2006-12-31 Ingo Feinerer <h0125130@wu-wien.ac.at>
852 :    
853 :     * R/: Implemented improvements based upon comments by David
854 :     Meyer.
855 :    
856 : feinerer 691 2006-12-17 Ingo Feinerer <h0125130@wu-wien.ac.at>
857 :    
858 :     * inst/doc/: Rewrote vignette.
859 :    
860 :     * man/: Improved documentation.
861 :    
862 : feinerer 690 2006-12-16 Ingo Feinerer <h0125130@wu-wien.ac.at>
863 :    
864 :     * man/: Updated documentation.
865 :    
866 :     * DESCRIPTION: Changed package name to "tm". Updated version to
867 :     0.1 for first CRAN release.
868 :    
869 :     * inst/texts/gmane.comp.lang.r.general.mbox: mbox Gmane R mailing
870 :     list archive example.
871 :    
872 :     * inst/texts/gmane.comp.lang.r.gr.rdf: RSS Gmane R mailing list
873 :     archive example.
874 :    
875 :     * R/preprocess.R (convert_mbox_eml): A simple e-mail converter
876 :     from (several mails per box) mbox format to (single mail per file)
877 :     eml format.
878 :    
879 : feinerer 689 2006-12-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
880 :    
881 :     * data/crude.rda: Rebuilt.
882 :    
883 :     * data/acq.rda: Rebuilt.
884 :    
885 :     * R/reader.R: Factored out reader and parser methods from
886 :     textdoccol.R.
887 :    
888 :     * R/source.R: Factored out Source methods from aobjects.R and
889 :     textdoccol.R.
890 :     (GmaneRSource): Encapsulates Gmane R mailing list archive RSS
891 :     feeds.
892 :    
893 :     * R/textdoccol.R (DirSource): Added support for recursive
894 :     traversal of directories.
895 :    
896 :     2006-12-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
897 :    
898 :     * R/textdoccol.R ([[): Loads the document corpus automatically
899 :     into memory upon access.
900 :     (tm_transform, tm_filter): Removed several checks whether the
901 :     document is already loaded ([[ ensures this now).
902 :     (gmane_r_reader): Reader for RSS feeds as provided by the Gmane R
903 :     mailing list archive.
904 :    
905 :     2006-12-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
906 :    
907 :     * R/aobjects.R (TextDocument): Is now a virtual class.
908 :     (Source): Is now a virtual class.
909 :    
910 :     2006-12-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
911 :    
912 :     * R/textdoccol.R (c): Support for an arbitrary number of document
913 :     collections.
914 :    
915 : feinerer 77 2006-11-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
916 :    
917 :     * R/textrepo.R: Updated TextRepository (constructor), append_elem,
918 :     append_meta and remove_meta.
919 :    
920 :     * R/textdoccol.R: Removed modify_metadata method.
921 :    
922 :     * R/textrepo.R: Removed modify_metadata method.
923 :    
924 :     * R/textdoccol.R (remove_meta): Supports removal of document
925 :     collection metadata and document (= in data frame) metadata.
926 :    
927 : feinerer 76 2006-11-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
928 :    
929 :     * R/textdoccol.R (append_doc): Bug fix for handling empty metadata.
930 :    
931 :     * data/crude.rda: Rebuilt.
932 :    
933 :     * data/acq.rda: Rebuilt.
934 :    
935 :     * inst/doc/textmin.Rnw: Updated vignette to reflect code changes.
936 :    
937 :     * R/textdoccol.R ([): Bug fix for subsetting a document
938 :     collection's data frame.
939 :    
940 : feinerer 75 2006-11-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
941 :    
942 :     * R/textdoccol.R: Bug fixes in s_filter. Added full query support
943 :     to s_filter.
944 :    
945 :     * R/textdoccol.R: Local text documents' metadata can now be copied
946 :     to a document collection's data frame with prescind_meta.
947 :    
948 : feinerer 73 2006-11-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
949 :    
950 : feinerer 74 * R/: Text documents' slot metadata is now accessible in s_filter.
951 :    
952 : feinerer 73 * R/: Rewrote s_filter function (has still some restrictions).
953 :    
954 : feinerer 72 2006-11-20 Ingo Feinerer <h0125130@wu-wien.ac.at>
955 :    
956 :     * R/: Various fixes in handling metadata.
957 :    
958 :     * R/: Added update mechanism for text document collections.
959 :    
960 : feinerer 71 2006-11-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
961 :    
962 :     * R/: Merging of document collections now creates a binary tree
963 :     for reconstructing merged document collections.
964 :    
965 :     * R/: Redesign of metadata for document collections.
966 :    
967 : feinerer 70 2006-11-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
968 :    
969 :     * R/: Messages now use \code{ngettext}.
970 :    
971 : feinerer 69 2006-11-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
972 :    
973 :     * R/: Added functions for modifying and removing metadata.
974 :    
975 : feinerer 67 2006-11-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
976 :    
977 :     * man/: Updated some documentation.
978 :    
979 :     * R/: Corrected some connection issues.
980 :    
981 :     * inst/doc: Worked on the vignette.
982 :    
983 : feinerer 65 2006-10-31 Ingo Feinerer <h0125130@wu-wien.ac.at>
984 :    
985 : feinerer 66 * inst/: Added texts and started vignette.
986 :    
987 : feinerer 65 * R/: Final changes based upon David's comments.
988 :    
989 : feinerer 64 2006-10-29 Ingo Feinerer <h0125130@wu-wien.ac.at>
990 :    
991 :     * NAMESPACE: Corrected exports (generic methods need exportMethods
992 :     directives!).
993 :    
994 : feinerer 63 2006-10-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
995 :    
996 :     * R/: Modified the TextDocCol constructur and various parsers. It
997 :     is now modular and supports various file formats via plugins (see
998 :     the new "Source" class).
999 :    
1000 : feinerer 62 2006-10-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
1001 :    
1002 :     * man/: Revised documentation after previous code changes.
1003 :    
1004 : feinerer 61 2006-10-23 Ingo Feinerer <h0125130@wu-wien.ac.at>
1005 :    
1006 :     * R/: Remaining changes as discussed with David.
1007 :    
1008 : feinerer 60 2006-10-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
1009 :    
1010 :     * R/: Some changes as suggested by David. The rest will follow
1011 :     within the next days.
1012 :    
1013 : feinerer 59 2006-09-26 Ingo Feinerer <h0125130@wu-wien.ac.at>
1014 :    
1015 :     * man/: Finished documentation.
1016 :    
1017 : feinerer 58 2006-09-25 Ingo Feinerer <h0125130@wu-wien.ac.at>
1018 :    
1019 :     * man/: Wrote some documentation.
1020 :    
1021 : feinerer 56 2006-09-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
1022 :    
1023 :     * R/: Further syntactic sugar in form of additional assignment and
1024 :     accessor methods.
1025 :    
1026 : feinerer 54 2006-09-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
1027 :    
1028 :     * R/: Syntactic sugar in form of "length", "show" and "summary"
1029 : feinerer 56 operators.
1030 : feinerer 54
1031 : feinerer 53 2006-08-24 Ingo Feinerer <h0125130@wu-wien.ac.at>
1032 :    
1033 :     * R/: Diverse updates. Mainly on default operators ("[" or "c")
1034 :     and dissimilarities.
1035 :    
1036 : feinerer 52 2006-08-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
1037 :    
1038 :     * R/: Added similarity functions.
1039 :    
1040 :     * data/: Added english stopwords.
1041 :    
1042 : feinerer 50 2006-08-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
1043 :    
1044 : feinerer 51 * data/: Examples compiled for new features
1045 :    
1046 :     * R/: Changes due to new structure.
1047 :    
1048 : feinerer 50 * NAMESPACE: Corrected namespace to reflect new structure.
1049 :    
1050 :     * R/termdocmatrix.R: Adapted for new naming scheme.
1051 :    
1052 : feinerer 49 2006-08-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
1053 :    
1054 :     * R/textdoccol.R: Adapted code for new class structure. Wrote
1055 :     several transform and filter functions operating on text document
1056 :     collections (alias text document databases).
1057 :    
1058 :     * R/aobjects.R: Adapted class structure with inheritance,
1059 :     repositories and additional meta data. Loading files on demand is
1060 :     now possible.
1061 :    
1062 : feinerer 48 2006-07-13 Ingo Feinerer <h0125130@wu-wien.ac.at>
1063 :    
1064 :     * R/: Some cosmetic cleanups.
1065 :    
1066 :     * inst/: Removed vignette on clustering. That and much more is now
1067 :     described in the JSS paper on text mining. Based upon that
1068 :     article an elaborated vignette will be incorporated in the future.
1069 :    
1070 : feinerer 42 2006-07-01 Ingo Feinerer <h0125130@wu-wien.ac.at>
1071 :    
1072 :     * R/: Updated generic S4 methods to comply with signature changes
1073 :     in newer versions of R (> 2.3)
1074 :    
1075 : feinerer 41 2006-03-12 Ingo Feinerer <h0125130@wu-wien.ac.at>
1076 :    
1077 :     * ext/R/importRIS.R: Automatic RIS import is now possible.
1078 :    
1079 : feinerer 40 2006-02-14 Ingo Feinerer <h0125130@wu-wien.ac.at>
1080 :    
1081 :     * R/textdoccol.R: Added RIS HTML input format.
1082 :    
1083 : feinerer 39 2006-01-21 Ingo Feinerer <h0125130@wu-wien.ac.at>
1084 :    
1085 :     * R/textdoccol.R: Removed bug that caused invalid text document
1086 :     collections when handling many input files.
1087 :    
1088 : feinerer 36 2006-01-11 Ingo Feinerer <h0125130@wu-wien.ac.at>
1089 :    
1090 : feinerer 37 * R/textdoccol.R: Restructured and extended file import
1091 :     mechanism.
1092 :    
1093 : feinerer 36 * inst/doc/clustering.Rnw: Adapted vignette for use with
1094 :     ReutNews.rda
1095 :    
1096 :     * man/ReutNews.Rd: Documentation for ReutNews.rda
1097 :    
1098 :     * data/ReutNews.rda: A tiny Reuters21578 example data set.
1099 :    
1100 : feinerer 34 2005-12-22 Ingo Feinerer <h0125130@wu-wien.ac.at>
1101 :    
1102 :     * inst/doc/clustering.Rnw: Wrote a small vignette to present the
1103 :     clustering facilities of this package.
1104 :    
1105 : feinerer 33 2005-12-15 Ingo Feinerer <h0125130@wu-wien.ac.at>
1106 :    
1107 :     * R/aobjects.R: Changed package document structure to avoid class
1108 :     dependency problems.
1109 :    
1110 : feinerer 28 2005-12-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
1111 :    
1112 : feinerer 799 * Wrote a script for the ModLewis Split for the Reuters-21578 XML
1113 : feinerer 29 data set.
1114 :    
1115 : feinerer 799 * Finished documentation and reordered directory structure. Now "R
1116 : feinerer 28 CMD check textmin" works without errors.
1117 :    
1118 : feinerer 27 2005-12-04 Ingo Feinerer <h0125130@wu-wien.ac.at>
1119 :    
1120 :     * src/: Various splits can now be easily created for the
1121 :     Reuters21578 data set.
1122 :    
1123 : feinerer 26 2005-12-03 Ingo Feinerer <h0125130@wu-wien.ac.at>
1124 :    
1125 : feinerer 799 * Updated documentation
1126 : feinerer 26
1127 : feinerer 25 2005-11-30 Ingo Feinerer <h0125130@wu-wien.ac.at>
1128 :    
1129 : feinerer 799 * Wrote R documentation for some classes and methods.
1130 : feinerer 25
1131 : feinerer 21 2005-11-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
1132 :    
1133 : feinerer 22 * R/textdoccol.R: Constructor of textdoccol allows import of CSV
1134 :     files. See the questionnaire data/Umfrage.csv for such an example.
1135 : feinerer 23 We are now able to import files in Reuters-21578 XML format.
1136 : feinerer 22
1137 : feinerer 799 * Changed class interfaces in various files. Weighting of the text
1138 : feinerer 21 matrix is now possible.
1139 :    
1140 : feinerer 20 2005-11-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
1141 :    
1142 :     * R/textdoccol.R: One can build term-document matrices if
1143 :     nessecary (with buildTDM(...)) and fill the field tdm from a text
1144 :     document collection with it.
1145 :    
1146 :     * R/textmatrix.R: Wrote S4 class for term-document matrices.
1147 :    
1148 : feinerer 19 2005-11-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
1149 :    
1150 :     * R/textdoccol.R: We now can read in a whole XML file with several
1151 :     news items.
1152 :    
1153 : feinerer 17 2005-11-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
1154 :    
1155 :     * R/textdoccol.R: Set up an S4 class for a collection of text
1156 :     documents. A first attempt to read in XML input (like the RCV1
1157 :     set) was made.
1158 :    
1159 :     * R/textdocument.R: Set up an S4 class for text documents. Wrote
1160 :     some accessor functions.
1161 :    
1162 :     * data/newsitem.xml: Added this XML file for testing purposes. It
1163 :     contains a single news item from the Reuters Corpus Volume 1
1164 :     (RCV1) XML set.
1165 :    
1166 : feinerer 16 2005-10-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
1167 :    
1168 :     * R/textmatrix.R (textmatrix): Removed the transpose of the original
1169 :     textmatrix as k-means clustering provided by R (kmeans) now works on
1170 :     this textmatrix. The result is a k-means text clustering with a
1171 :     similarity measure based upon word frequences.
1172 :    
1173 :     2005-10-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
1174 :    
1175 :     * R/textmatrix.R: Adapted the preprocessing code from the R
1176 :     package "lsa" written by Fridolin Wild to build a document text matrix.
1177 :    
1178 :     2005-10-02 Ingo Feinerer <h0125130@wu-wien.ac.at>
1179 :    
1180 : feinerer 799 * Set up the R Text Mining Package infrastructure.

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