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Revision 1051 - (view) (download)

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

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