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trunk/tm/ChangeLog revision 711, Tue Jan 30 13:03:55 2007 UTC pkg/ChangeLog revision 1019, Mon Nov 16 08:20:55 2009 UTC
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1    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
2    
3            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
4            of RWeka:AlphabeticTokenizer() as default.
5    
6    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
7    
8            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
9            caused words at the beginning or the end of a line not to be removed. Do
10            not delete whitespace anymore.
11    
12    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
13    
14            * R/source.R (DirSource): Default to working directory if no path
15            is specified.
16    
17    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
18    
19            * R/source.R (DirSource): Stop on empty directories.
20    
21    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
22    
23            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
24            named documents.
25    
26    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
27    
28            * R/transform.R (removeWords): Improve regular expressions.
29    
30    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
31    
32            * R/meta.R (DublinCore): Allow lower case tags.
33    
34    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
35    
36            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
37            instead of x$children.
38    
39    2009-09-15  Ingo Feinerer  <feinerer@logic.at>
40    
41            * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
42    
43    2009-09-06  Ingo Feinerer  <feinerer@logic.at>
44    
45            * R/: Use S3 instead of S4 class system.
46    
47    2009-08-11  Ingo Feinerer  <feinerer@logic.at>
48    
49            * R/reader.R (readMail): Moved to tm.plugin.mail package.
50    
51    2009-07-04  Ingo Feinerer  <feinerer@logic.at>
52    
53            * R/reader.R (readNewsgroup): Rename to readMail as newsgroup
54            postings are basically e-mails with some extra headers.
55    
56    2009-07-03  Ingo Feinerer  <feinerer@logic.at>
57    
58            * R/transform.R: Move convertMboxEml, removeCitation,
59            removeMultipart, and removeSignature to the tm.plugin.mail package
60            since they are mainly utility functions (for handling e-mails) and
61            not very framework specific.
62    
63    2009-06-28  Ingo Feinerer  <feinerer@logic.at>
64    
65            * man/: Fix documentation.
66    
67    2009-06-26  Ingo Feinerer  <feinerer@logic.at>
68    
69            * R/reader.R (readReut21578XMLasPlain): New reader which returns a
70            plain text document instead of an XML document for texts of the
71            Reuters-21578 dataset.
72    
73            * R/sparse.R: Removed since the slam package is now available on
74            CRAN.
75    
76            * DESCRIPTION (Depends): Add slam package.
77    
78    2009-06-17  Ingo Feinerer  <feinerer@logic.at>
79    
80            * R/transform.R (stemDoc): Fix character(0) handling.
81    
82    2009-06-12  Ingo Feinerer  <feinerer@logic.at>
83    
84            * R/doc.R (show): Pretty print.
85    
86    2009-05-27  Ingo Feinerer  <feinerer@logic.at>
87    
88            * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
89            gracefully.
90    
91    2009-05-13  Ingo Feinerer  <feinerer@logic.at>
92    
93            * R/corpus.R: Make corpus virtual. Implement corpus with standard
94            and permanent storage semantics.
95    
96            * DESCRIPTION: New major release. A *lot* of improvements.
97    
98    2009-05-04   Ingo Feinerer <feinerer@logic.at>
99    
100            * NAMESPACE: Export some simple_triplet_matrix functions.
101    
102    2009-04-28   Ingo Feinerer <feinerer@logic.at>
103    
104            * R/weight.R: Adapt tf-idf to new matrix format.
105    
106    2009-04-27  Ingo Feinerer  <feinerer@logic.at>
107    
108            * R/matrix.R: Create two distinct classes for term-document and
109            document-term matrices.
110    
111    2009-04-26  Ingo Feinerer  <feinerer@logic.at>
112    
113            * R/termdocmatrix.R: No longer use Matrix package. This reduces
114            package start-up time significantly.
115    
116    2009-04-11  Ingo Feinerer  <feinerer@logic.at>
117    
118            * inst/doc/tm.Rnw: Fix code/documentation mismatch.
119    
120    2009-04-04  Ingo Feinerer  <feinerer@logic.at>
121    
122            * R/transform.R (tmReduce): Combine multiple maps into one
123            transformation.
124    
125    2009-04-03  Ingo Feinerer  <feinerer@logic.at>
126    
127            * R/weight.R: Remove weightLogical since it does not return a
128            dgCMatrix.
129    
130            * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
131            or TermDocumentMatrix instead.
132    
133    2009-03-28  Ingo Feinerer  <feinerer@logic.at>
134    
135            * inst/doc/extensions.Rnw: Finished vignette.
136    
137    2009-03-27  Ingo Feinerer  <feinerer@logic.at>
138    
139            * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
140            DocumentTermMatrix representations.
141    
142    2009-03-23  Ingo Feinerer  <feinerer@logic.at>
143    
144            * R/reader.R (readXML): New reader for arbitrary XML files.
145    
146    2009-03-22  Ingo Feinerer  <feinerer@logic.at>
147    
148            * R/source.R (CSVSource): Defunct (use DataframeSource instead).
149            (XMLSource): New XMLSource class for arbitrary XML files.
150            (Source): New slot Vectorized.
151    
152    2009-03-21  Ingo Feinerer  <feinerer@logic.at>
153    
154            * R/reader.R (readTabular): Experimental reader for tabular data
155            structures which can be customized via user-defined mappings.
156    
157            * R/reader.R: Always use UTC time zone.
158    
159            * R/AAA.R (.onLoad): No longer try to start a MPI cluster.
160    
161    2009-03-20  Ingo Feinerer  <feinerer@logic.at>
162    
163            * R/reader.R (readDOC): Options can be passed over to antiword.
164    
165            * R/reader.R (readPDF): Options can be passed over to pdfinfo and
166            pdftotext.
167    
168    2009-03-10  Ingo Feinerer  <feinerer@logic.at>
169    
170            * R/source.R (DirSource): Add pattern and ignore.case arguments
171            which are internally passed over to list.files().
172    
173    2009-03-02  Ingo Feinerer  <feinerer@logic.at>
174    
175            * inst/doc/tm.Rnw: Suppress pointless loading message.
176    
177    2009-01-29  Ingo Feinerer  <feinerer@logic.at>
178    
179            * DESCRIPTION: Speed up package loading (via moving packages not
180            strictly necessary for normal operation to Suggests instead of
181            Depends).
182    
183    2009-01-08  Ingo Feinerer  <feinerer@logic.at>
184    
185            * R/reader.R (readNewsgroup): The date format is now configurable.
186    
187    2008-12-20  Ingo Feinerer  <feinerer@logic.at>
188    
189            * R/preprocess.R (convertMboxEml): Fix off-by-one error.
190    
191    2008-12-16  Ingo Feinerer  <feinerer@logic.at>
192    
193            * R/termdocmatrix.R (TermDocMatrix): Sort row indices.
194    
195    2008-12-06  Ingo Feinerer  <feinerer@logic.at>
196    
197            * R/source.R (DataframeSource): New source class for data frames.
198    
199            * R/source.R: Fixed non-standard call evaluation.
200    
201    2008-11-29  Ingo Feinerer  <feinerer@logic.at>
202    
203            * R/source.R (URISource): New source class for a single document.
204    
205    2008-11-27  Ingo Feinerer  <feinerer@logic.at>
206    
207            * R/source.R: Refactoring.
208    
209    2008-11-25  Ingo Feinerer  <feinerer@logic.at>
210    
211            * R/AAA.R (.onLoad, .Last): Use tryCatch() to handle misconfigured
212            Rmpi installations more gracefully.
213    
214    2008-11-08  Ingo Feinerer  <feinerer@logic.at>
215    
216            * R/source.R (Source): Add Length slot.
217    
218    2008-11-06  Ingo Feinerer  <feinerer@logic.at>
219    
220            * R/AAA.R: Unify duplicated .onLoad function.
221    
222    2008-11-03  Ingo Feinerer  <feinerer@logic.at>
223    
224            * DESCRIPTION (Suggests): Added Rmpi.
225    
226    2008-11-02  Ingo Feinerer  <feinerer@logic.at>
227    
228            * R/source.R (getElem): Fix 'no visible binding' warning.
229    
230            * man/WeightFunction.Rd: Fix signature.
231    
232    2008-08-03  Ingo Feinerer  <feinerer@logic.at>
233    
234            * R/weight.R: Introduce name abbreviations for weighting functions.
235    
236    2008-07-24  Ingo Feinerer  <feinerer@logic.at>
237    
238            * R/AAA.R (.onLoad, .Last): Start and stop MPI cluster.
239    
240            * R/cluster.R: Provide convenience functions for using a MPI
241            cluster.
242    
243            * R/termdocmatrix.R (TermDocMatrix): Use MPI cluster if
244            available.
245    
246            * R/textdoccol.R (tmIndex, tmFilter, tmMap): Use MPI cluster if
247            available.
248    
249    2008-07-17  Ingo Feinerer  <feinerer@logic.at>
250    
251            * R/textdoccol.R (lapply): Removed debug print out.
252    
253    2008-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
254    
255            * R/reader.R (readRCV1): Improved meta data extraction from
256            Reuters Corpus Volume 1 documents.
257    
258    2008-05-25  Ingo Feinerer  <h0125130@wu-wien.ac.at>
259    
260            * R/transform.R: Ensure that all mappings preserve multiline
261            structures.
262    
263    2008-05-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
264    
265            * R/filter.R: Every filter has now an attribute indicating whether
266            it sould be applied to document level (doclevel).
267    
268            * R/textdoccol.R (tmFilter): Set searchFullText as new default
269            filter.
270    
271    2008-04-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
272    
273            * R/transform.R (replacePatterns): Replaced removeWords by
274            replacePatterns. Suggested by Christian Buchta.
275    
276            * R/textdoccol.R (inspect): Improved formatting.
277    
278    2008-04-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
279    
280            * inst/CITATION: Updated JSS article information.
281    
282            * R/textdoccol.R (setAs): Added coerce method from list to
283            corpus.
284    
285            * R/meta.R (meta): Improved meta data handling.
286    
287    2008-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
288    
289            * R/textdoccol.R (materialize, tmMap): Improvements suggested by
290            Christian Buchta.
291    
292            * inst/CITATION: Added template to include JSS article reference.
293    
294    2008-03-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
295    
296            * R/textdoccol.R (tmMap): Introduced lazy mapping.
297    
298            * R/source.R: Added VectorSource.
299    
300    2008-02-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
301    
302            * man/: Language codes should be in ISO 639-1 format.
303    
304            * R/textdoccol.R (asPlain): Preserve local meta data.
305    
306    2008-01-31  Ingo Feinerer  <h0125130@wu-wien.ac.at>
307    
308            * R/textdoccol.R (writeCorpus): Function for writing a corpus
309            containing plain text documents to disk.
310    
311    2008-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
312    
313            * R/termdocmatrix.R (TermDocMatrix): Ensure that dimnames are
314            always set correctly.
315    
316            * R/textdoccol.R: Set load = TRUE as default for load on demand
317            since in most cases this is the wanted behaviour.
318    
319    2008-01-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
320    
321            * R/: Renamed TextDocCol to Corpus, and Corpus to Content.
322    
323            * DESCRIPTION: Updated Version to 0.3 due to core name changes.
324    
325    2008-01-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
326    
327            * R/meta.R (meta): New function for consistent access to meta data
328            of document collections, repositories, and texts.
329    
330    2008-01-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
331    
332            * R/: Better support for encodings.
333    
334    2008-01-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
335    
336            * R/textdoccol.R (TextDocCol): Fixed bug regarding default reader
337            selection when no reader argument is given.
338    
339    2008-01-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
340    
341            * R/source.R (CSVSource): Now uses read.csv instead of scan
342            internally.
343    
344    2008-01-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
345    
346            * R/reader.R (getReaders): Returns available reader functions.
347    
348            * R/termdocmatrix.R (TermDocMatrix): Set new modular constructor
349            as default.
350    
351    2007-12-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
352    
353            * R/stopwords.R (stopwords): Shortened code, removed codetools
354            variable warnings.
355    
356            * man/: Documentation for showMeta, added an example for tmMap.
357    
358            * inst/doc/tm.Rnw: Updated vignette, comments on MS word reader,
359            some minor typos fixed.
360    
361    2007-12-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
362    
363            * R/aobjects.R (showMeta): Added method for pretty printing a
364            text document's meta data.
365    
366    2007-11-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
367    
368            * R/textdoccol.R (TextDocCol): Better handling of empty
369            arguments.
370    
371            * NAMESPACE: Exported readDOC.
372    
373            * man/completeStems.Rd: Added an example.
374    
375    2007-11-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
376    
377            * R/stopwords.R (stopwords): Look up .dat files at every
378            call. Allows users to modify stopword .dat files interactively.
379    
380    2007-11-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
381    
382            * R/termdocmatrix.R (termFreq): Correct processing of empty
383            documents.
384    
385    2007-10-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
386    
387            * man/: Updated documentation.
388    
389    2007-10-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
390    
391            * R/complete.R (completeStems): Completes (heuristically) word
392            stems.
393    
394            * R/termdocmatrix.R (TermDocMatrix2): New modular
395            constructor.
396    
397            * NAMESPACE: Exported termFreq.
398    
399    2007-10-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
400    
401            * R/reader.R (readDOC): Added MS Word reader (using antiword).
402    
403    2007-10-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
404    
405            * R/weight.R: Weighting functions for TermDocMatrix.
406    
407    2007-10-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
408    
409            * R/termdocmatrix.R (dimnames, colnames, rownames): Wrapper
410            functions for accessing dimension, column, and row names.
411    
412            * R/plot.R (plot.TermDocMatrix): Plot correlations between terms.
413    
414    2007-09-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
415    
416            * man/removePunctuation.Rd: Added documentation. Function also exported to NAMESPACE.
417    
418    2007-08-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
419    
420            * R/fungen.R: Use S4 class for function generators instead of S3 attributes.
421    
422    2007-07-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
423    
424            * R/reader.R (readPDF): Removed manual checks for pdftotext and
425            pdfinfo. The system call gives a warning anyway.
426    
427    2007-07-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
428    
429            * R/textdoccol.R (asPlain): Conversion from
430            StructuredTextDocuments to PlainTextDocuments.
431    
432    2007-07-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
433    
434            * R/termdocmatrix.R: Added convenience methods ("[", nrow, ncol)
435            for accessing term-document matrices.
436    
437            * inst/doc/tm.Rnw: readPDF is only called if pdftotext and pdfinfo
438            are installed.
439    
440    2007-07-17  Ingo Feinerer  <h0125130@wu-wien.ac.at>
441    
442            * R/termdocmatrix.R (TermDocMatrix): Improved efficiency. Kudos to
443            Christian Buchta.
444    
445    2007-07-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
446    
447            * inst/doc/tm.Rnw: Update vignette (readPDF, readHTML, preprocessReut21578XML).
448    
449    2007-07-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
450    
451            * R/reader.R (readHTML): Added very simple HTML reader to obtain StructuredTextDocuments.
452    
453            * R/reader.R (readPDF): Added PDF reader.
454    
455    2007-07-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
456    
457            * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
458    
459            * inst/stopwords/english.dat: Added the term "yes" to stopwords.
460    
461            * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
462    
463            * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
464    
465    2007-07-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
466    
467            * R/distmeasure.R (dissimilarity): Replaced dists call from
468            package cba by new dist call from package proxy.
469    
470    2007-07-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
471    
472            * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
473    
474    2007-06-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
475    
476            * R/termdocmatrix.R: require() uses the quietly option to suppress
477            loading messages.
478    
479    2007-06-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
480    
481            * R/dictionary.R: Added dictionary support.
482    
483    2007-06-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
484    
485            * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
486            documents. This simplifies some functions, e.g., asPlain.
487    
488    2007-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
489    
490            * inst/doc/tm.Rnw: Fixed some typos in vignette.
491    
492    2007-06-03  Ingo Feinerer  <h0125130@wu-wien.ac.at>
493    
494            * R/textdoccol.R (replaceWords): Added method to replace a set of
495            words by a single word. Useful for synonyms.
496    
497    2007-05-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
498    
499            * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
500    
501    2007-05-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
502    
503            * R/termdocmatrix.R (textvector): Small fix for dealing with empty
504            vectors. Thanks to Ariel Maguyon for his error report.
505            (removeSparseTerms): New function to remove columns from a
506            term-document matrix exceeding a sparse factor.
507    
508    2007-05-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
509    
510            * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
511    
512    2007-05-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
513    
514            * man/sFilter.Rd: Corrected documentation on statement format (use
515            '==' instead of '=').
516    
517    2007-05-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
518    
519            * R/aobjects.R (StructuredTextDocument): Inherits from
520            TextDocument.
521    
522    2007-05-04  Ingo Feinerer  <h0125130@wu-wien.ac.at>
523    
524            * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
525            on sparse matrices as proposed by Martin Maechler.
526    
527    2007-04-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
528    
529            * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
530            \pkg{filehash} version makes them deprecated.
531    
532    2007-04-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
533    
534            * R/termdocmatrix.R (textvector): Stemming is now performed before
535            erasing stopwords.
536            (weightMatrix): Adapted to handle sparse matrices.
537            (TermDocMatrix): Sparse matrix is now efficiently built by
538            direct stepwise insertion of row values into it.
539    
540    2007-04-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
541    
542            * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
543            due to ongoing problems. For our purposes the latter is as useful
544            as the replaced package.
545    
546    2007-04-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>
547    
548            * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.
549    
550            * man/TermDocMatrix.Rd: Remove deprecated \code{language} argument.
551    
552    2007-04-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
553    
554            * R/resolve.R (resolveISOCode): Added ISO 639-1 codes for
555            languages with available stopwords.
556    
557    2007-04-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
558    
559            * inst/doc/tm.Rnw: Minor corrections in the vignette.
560    
561    2007-04-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
562    
563            * DESCRIPTION: Update to version 0.2, since a lot of new features
564            have been integrated.
565    
566            * inst/stopwords: Updated existing stopwords and added stopwords
567            for various other languages.
568    
569    2007-04-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
570    
571            * man/: Updated documentation.
572    
573            * Work/testDb.R: Script to test database stuff.
574    
575            * R/: Fixed various database related bugs. Seems to be rather
576            useable now, i.e., consider as alpha status for now.
577    
578    2007-04-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
579    
580            * R/: Fixed some bugs related to database support.
581    
582    2007-04-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
583    
584            * man/: Added a lot of examples to the manuals.
585    
586    2007-04-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
587    
588            * man/: Updated parts of the documentation.
589    
590            * R/textdoccol.R (asPlain): Added conversion from newsgroup
591            documents to plain text documents.
592    
593    2007-04-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
594    
595            * R/textdoccol.R: Finished experimental database support. Not yet
596            intensively tested.
597    
598            * R/source.R: Now each source has a default reader.
599    
600            * R/reader.R: \code{FunctionGenerator} is now an attribute, not a
601            class anymore.
602    
603            * R/plaintextdoc.R: Custom show method for plain text documents.
604    
605            * R/aobjects.R: Added a class for structured text documents.
606    
607            * R/reader.R: Replaced remaining \code{parser} occurrences with
608            \code{reader}.
609    
610            * R/textdoccol.R (summary): Indent tags.
611    
612            * R/textdoccol.R (removePunctuation): Transform method to remove
613            punctuation marks.
614    
615    2007-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
616    
617            * R/textdoccol.R (sFilter): Simplified sFilter significantly by
618            using prescindMeta().
619    
620    2007-03-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
621    
622            * R/textdoccol.R: Improved database support.
623    
624    2007-03-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
625    
626            * R/termdocmatrix.R (TermDocMatrix): Uses sparse matrices.
627    
628            * R/resolve.R (resolveISOcode): Extracts the language from a ISO
629            language code.
630    
631            * R/textdoccol.R (TextDocCol): Refactored several parser arguments
632            into parserControl argument.
633    
634            * R/aobjects.R (TextDocument): Introduced the "Language" slot.
635    
636    2007-03-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
637    
638            * Work/tmDataSetup.R: The datasets acq and crude can now be
639            created on the fly.
640    
641            * R/stopwords.R: Introduced a function returning the stopwords for
642            a given language (English, German and French at the moment)
643    
644            * R/textdoccol.R (stemDoc): Stemming uses Rstem if available,
645            otherwise falls back to Snowball package.
646    
647  2007-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>  2007-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
648    
649          * man/dissimilarity-methods.Rd: Make clear that any method offered          * man/dissimilarity-methods.Rd: Make clear that any method offered

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