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Annotation of /pkg/ChangeLog

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Revision 1018 - (view) (download)

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

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