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Revision 1015 - (view) (download)

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

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