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trunk/tm/ChangeLog revision 711, Tue Jan 30 13:03:55 2007 UTC pkg/ChangeLog revision 1032, Thu Jan 7 12:09:51 2010 UTC
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1    2010-01-07  Stefan Theussl  <stefan.theussl@wu.ac.at>
2    
3            * R/source.R (DirSource): Improved implementation especially when
4            handling many (>1M) files.
5    
6    2009-12-22  Ingo Feinerer  <feinerer@logic.at>
7    
8            * R/source.R (getElem.URISource): Use encoding argument.
9    
10    2009-12-11  Ingo Feinerer  <feinerer@logic.at>
11    
12            * R/doc.R (setOldClass): Register S3 document classes to be
13            recognized by S4 methods.
14    
15    2009-11-25  Ingo Feinerer  <feinerer@logic.at>
16    
17            * R/matrix.R (termFreq): Add option to remove punctuation
18            characters.
19    
20    2009-11-19  Ingo Feinerer  <feinerer@logic.at>
21    
22            * R/matrix.R (c.TermDocumentMatrix): Added combine method for
23            merging multiple term-document matrices.
24    
25    2009-11-17  Ingo Feinerer  <feinerer@logic.at>
26    
27            * R/corpus.R (setOldClass): Register S3 corpus classes to be
28            recognized by S4 methods.
29    
30            * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
31            that CRAN Mac OS X builds do not fail any longer.
32    
33    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
34    
35            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
36            of RWeka:AlphabeticTokenizer() as default.
37    
38    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
39    
40            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
41            caused words at the beginning or the end of a line not to be removed. Do
42            not delete whitespace anymore.
43    
44    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
45    
46            * R/source.R (DirSource): Default to working directory if no path
47            is specified.
48    
49    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
50    
51            * R/source.R (DirSource): Stop on empty directories.
52    
53    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
54    
55            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
56            named documents.
57    
58    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
59    
60            * R/transform.R (removeWords): Improve regular expressions.
61    
62    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
63    
64            * R/meta.R (DublinCore): Allow lower case tags.
65    
66    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
67    
68            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
69            instead of x$children.
70    
71    2009-09-15  Ingo Feinerer  <feinerer@logic.at>
72    
73            * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
74    
75    2009-09-06  Ingo Feinerer  <feinerer@logic.at>
76    
77            * R/: Use S3 instead of S4 class system.
78    
79    2009-08-11  Ingo Feinerer  <feinerer@logic.at>
80    
81            * R/reader.R (readMail): Moved to tm.plugin.mail package.
82    
83    2009-07-04  Ingo Feinerer  <feinerer@logic.at>
84    
85            * R/reader.R (readNewsgroup): Rename to readMail as newsgroup
86            postings are basically e-mails with some extra headers.
87    
88    2009-07-03  Ingo Feinerer  <feinerer@logic.at>
89    
90            * R/transform.R: Move convertMboxEml, removeCitation,
91            removeMultipart, and removeSignature to the tm.plugin.mail package
92            since they are mainly utility functions (for handling e-mails) and
93            not very framework specific.
94    
95    2009-06-28  Ingo Feinerer  <feinerer@logic.at>
96    
97            * man/: Fix documentation.
98    
99    2009-06-26  Ingo Feinerer  <feinerer@logic.at>
100    
101            * R/reader.R (readReut21578XMLasPlain): New reader which returns a
102            plain text document instead of an XML document for texts of the
103            Reuters-21578 dataset.
104    
105            * R/sparse.R: Removed since the slam package is now available on
106            CRAN.
107    
108            * DESCRIPTION (Depends): Add slam package.
109    
110    2009-06-17  Ingo Feinerer  <feinerer@logic.at>
111    
112            * R/transform.R (stemDoc): Fix character(0) handling.
113    
114    2009-06-12  Ingo Feinerer  <feinerer@logic.at>
115    
116            * R/doc.R (show): Pretty print.
117    
118    2009-05-27  Ingo Feinerer  <feinerer@logic.at>
119    
120            * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
121            gracefully.
122    
123    2009-05-13  Ingo Feinerer  <feinerer@logic.at>
124    
125            * R/corpus.R: Make corpus virtual. Implement corpus with standard
126            and permanent storage semantics.
127    
128            * DESCRIPTION: New major release. A *lot* of improvements.
129    
130    2009-05-04   Ingo Feinerer <feinerer@logic.at>
131    
132            * NAMESPACE: Export some simple_triplet_matrix functions.
133    
134    2009-04-28   Ingo Feinerer <feinerer@logic.at>
135    
136            * R/weight.R: Adapt tf-idf to new matrix format.
137    
138    2009-04-27  Ingo Feinerer  <feinerer@logic.at>
139    
140            * R/matrix.R: Create two distinct classes for term-document and
141            document-term matrices.
142    
143    2009-04-26  Ingo Feinerer  <feinerer@logic.at>
144    
145            * R/termdocmatrix.R: No longer use Matrix package. This reduces
146            package start-up time significantly.
147    
148    2009-04-11  Ingo Feinerer  <feinerer@logic.at>
149    
150            * inst/doc/tm.Rnw: Fix code/documentation mismatch.
151    
152    2009-04-04  Ingo Feinerer  <feinerer@logic.at>
153    
154            * R/transform.R (tmReduce): Combine multiple maps into one
155            transformation.
156    
157    2009-04-03  Ingo Feinerer  <feinerer@logic.at>
158    
159            * R/weight.R: Remove weightLogical since it does not return a
160            dgCMatrix.
161    
162            * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
163            or TermDocumentMatrix instead.
164    
165    2009-03-28  Ingo Feinerer  <feinerer@logic.at>
166    
167            * inst/doc/extensions.Rnw: Finished vignette.
168    
169    2009-03-27  Ingo Feinerer  <feinerer@logic.at>
170    
171            * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
172            DocumentTermMatrix representations.
173    
174    2009-03-23  Ingo Feinerer  <feinerer@logic.at>
175    
176            * R/reader.R (readXML): New reader for arbitrary XML files.
177    
178    2009-03-22  Ingo Feinerer  <feinerer@logic.at>
179    
180            * R/source.R (CSVSource): Defunct (use DataframeSource instead).
181            (XMLSource): New XMLSource class for arbitrary XML files.
182            (Source): New slot Vectorized.
183    
184    2009-03-21  Ingo Feinerer  <feinerer@logic.at>
185    
186            * R/reader.R (readTabular): Experimental reader for tabular data
187            structures which can be customized via user-defined mappings.
188    
189            * R/reader.R: Always use UTC time zone.
190    
191            * R/AAA.R (.onLoad): No longer try to start a MPI cluster.
192    
193    2009-03-20  Ingo Feinerer  <feinerer@logic.at>
194    
195            * R/reader.R (readDOC): Options can be passed over to antiword.
196    
197            * R/reader.R (readPDF): Options can be passed over to pdfinfo and
198            pdftotext.
199    
200    2009-03-10  Ingo Feinerer  <feinerer@logic.at>
201    
202            * R/source.R (DirSource): Add pattern and ignore.case arguments
203            which are internally passed over to list.files().
204    
205    2009-03-02  Ingo Feinerer  <feinerer@logic.at>
206    
207            * inst/doc/tm.Rnw: Suppress pointless loading message.
208    
209    2009-01-29  Ingo Feinerer  <feinerer@logic.at>
210    
211            * DESCRIPTION: Speed up package loading (via moving packages not
212            strictly necessary for normal operation to Suggests instead of
213            Depends).
214    
215    2009-01-08  Ingo Feinerer  <feinerer@logic.at>
216    
217            * R/reader.R (readNewsgroup): The date format is now configurable.
218    
219    2008-12-20  Ingo Feinerer  <feinerer@logic.at>
220    
221            * R/preprocess.R (convertMboxEml): Fix off-by-one error.
222    
223    2008-12-16  Ingo Feinerer  <feinerer@logic.at>
224    
225            * R/termdocmatrix.R (TermDocMatrix): Sort row indices.
226    
227    2008-12-06  Ingo Feinerer  <feinerer@logic.at>
228    
229            * R/source.R (DataframeSource): New source class for data frames.
230    
231            * R/source.R: Fixed non-standard call evaluation.
232    
233    2008-11-29  Ingo Feinerer  <feinerer@logic.at>
234    
235            * R/source.R (URISource): New source class for a single document.
236    
237    2008-11-27  Ingo Feinerer  <feinerer@logic.at>
238    
239            * R/source.R: Refactoring.
240    
241    2008-11-25  Ingo Feinerer  <feinerer@logic.at>
242    
243            * R/AAA.R (.onLoad, .Last): Use tryCatch() to handle misconfigured
244            Rmpi installations more gracefully.
245    
246    2008-11-08  Ingo Feinerer  <feinerer@logic.at>
247    
248            * R/source.R (Source): Add Length slot.
249    
250    2008-11-06  Ingo Feinerer  <feinerer@logic.at>
251    
252            * R/AAA.R: Unify duplicated .onLoad function.
253    
254    2008-11-03  Ingo Feinerer  <feinerer@logic.at>
255    
256            * DESCRIPTION (Suggests): Added Rmpi.
257    
258    2008-11-02  Ingo Feinerer  <feinerer@logic.at>
259    
260            * R/source.R (getElem): Fix 'no visible binding' warning.
261    
262            * man/WeightFunction.Rd: Fix signature.
263    
264    2008-08-03  Ingo Feinerer  <feinerer@logic.at>
265    
266            * R/weight.R: Introduce name abbreviations for weighting functions.
267    
268    2008-07-24  Ingo Feinerer  <feinerer@logic.at>
269    
270            * R/AAA.R (.onLoad, .Last): Start and stop MPI cluster.
271    
272            * R/cluster.R: Provide convenience functions for using a MPI
273            cluster.
274    
275            * R/termdocmatrix.R (TermDocMatrix): Use MPI cluster if
276            available.
277    
278            * R/textdoccol.R (tmIndex, tmFilter, tmMap): Use MPI cluster if
279            available.
280    
281    2008-07-17  Ingo Feinerer  <feinerer@logic.at>
282    
283            * R/textdoccol.R (lapply): Removed debug print out.
284    
285    2008-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
286    
287            * R/reader.R (readRCV1): Improved meta data extraction from
288            Reuters Corpus Volume 1 documents.
289    
290    2008-05-25  Ingo Feinerer  <h0125130@wu-wien.ac.at>
291    
292            * R/transform.R: Ensure that all mappings preserve multiline
293            structures.
294    
295    2008-05-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
296    
297            * R/filter.R: Every filter has now an attribute indicating whether
298            it sould be applied to document level (doclevel).
299    
300            * R/textdoccol.R (tmFilter): Set searchFullText as new default
301            filter.
302    
303    2008-04-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
304    
305            * R/transform.R (replacePatterns): Replaced removeWords by
306            replacePatterns. Suggested by Christian Buchta.
307    
308            * R/textdoccol.R (inspect): Improved formatting.
309    
310    2008-04-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
311    
312            * inst/CITATION: Updated JSS article information.
313    
314            * R/textdoccol.R (setAs): Added coerce method from list to
315            corpus.
316    
317            * R/meta.R (meta): Improved meta data handling.
318    
319    2008-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
320    
321            * R/textdoccol.R (materialize, tmMap): Improvements suggested by
322            Christian Buchta.
323    
324            * inst/CITATION: Added template to include JSS article reference.
325    
326    2008-03-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
327    
328            * R/textdoccol.R (tmMap): Introduced lazy mapping.
329    
330            * R/source.R: Added VectorSource.
331    
332    2008-02-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
333    
334            * man/: Language codes should be in ISO 639-1 format.
335    
336            * R/textdoccol.R (asPlain): Preserve local meta data.
337    
338    2008-01-31  Ingo Feinerer  <h0125130@wu-wien.ac.at>
339    
340            * R/textdoccol.R (writeCorpus): Function for writing a corpus
341            containing plain text documents to disk.
342    
343    2008-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
344    
345            * R/termdocmatrix.R (TermDocMatrix): Ensure that dimnames are
346            always set correctly.
347    
348            * R/textdoccol.R: Set load = TRUE as default for load on demand
349            since in most cases this is the wanted behaviour.
350    
351    2008-01-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
352    
353            * R/: Renamed TextDocCol to Corpus, and Corpus to Content.
354    
355            * DESCRIPTION: Updated Version to 0.3 due to core name changes.
356    
357    2008-01-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
358    
359            * R/meta.R (meta): New function for consistent access to meta data
360            of document collections, repositories, and texts.
361    
362    2008-01-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
363    
364            * R/: Better support for encodings.
365    
366    2008-01-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
367    
368            * R/textdoccol.R (TextDocCol): Fixed bug regarding default reader
369            selection when no reader argument is given.
370    
371    2008-01-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
372    
373            * R/source.R (CSVSource): Now uses read.csv instead of scan
374            internally.
375    
376    2008-01-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
377    
378            * R/reader.R (getReaders): Returns available reader functions.
379    
380            * R/termdocmatrix.R (TermDocMatrix): Set new modular constructor
381            as default.
382    
383    2007-12-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
384    
385            * R/stopwords.R (stopwords): Shortened code, removed codetools
386            variable warnings.
387    
388            * man/: Documentation for showMeta, added an example for tmMap.
389    
390            * inst/doc/tm.Rnw: Updated vignette, comments on MS word reader,
391            some minor typos fixed.
392    
393    2007-12-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
394    
395            * R/aobjects.R (showMeta): Added method for pretty printing a
396            text document's meta data.
397    
398    2007-11-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
399    
400            * R/textdoccol.R (TextDocCol): Better handling of empty
401            arguments.
402    
403            * NAMESPACE: Exported readDOC.
404    
405            * man/completeStems.Rd: Added an example.
406    
407    2007-11-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
408    
409            * R/stopwords.R (stopwords): Look up .dat files at every
410            call. Allows users to modify stopword .dat files interactively.
411    
412    2007-11-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
413    
414            * R/termdocmatrix.R (termFreq): Correct processing of empty
415            documents.
416    
417    2007-10-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
418    
419            * man/: Updated documentation.
420    
421    2007-10-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
422    
423            * R/complete.R (completeStems): Completes (heuristically) word
424            stems.
425    
426            * R/termdocmatrix.R (TermDocMatrix2): New modular
427            constructor.
428    
429            * NAMESPACE: Exported termFreq.
430    
431    2007-10-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
432    
433            * R/reader.R (readDOC): Added MS Word reader (using antiword).
434    
435    2007-10-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
436    
437            * R/weight.R: Weighting functions for TermDocMatrix.
438    
439    2007-10-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
440    
441            * R/termdocmatrix.R (dimnames, colnames, rownames): Wrapper
442            functions for accessing dimension, column, and row names.
443    
444            * R/plot.R (plot.TermDocMatrix): Plot correlations between terms.
445    
446    2007-09-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
447    
448            * man/removePunctuation.Rd: Added documentation. Function also exported to NAMESPACE.
449    
450    2007-08-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
451    
452            * R/fungen.R: Use S4 class for function generators instead of S3 attributes.
453    
454    2007-07-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
455    
456            * R/reader.R (readPDF): Removed manual checks for pdftotext and
457            pdfinfo. The system call gives a warning anyway.
458    
459    2007-07-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
460    
461            * R/textdoccol.R (asPlain): Conversion from
462            StructuredTextDocuments to PlainTextDocuments.
463    
464    2007-07-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
465    
466            * R/termdocmatrix.R: Added convenience methods ("[", nrow, ncol)
467            for accessing term-document matrices.
468    
469            * inst/doc/tm.Rnw: readPDF is only called if pdftotext and pdfinfo
470            are installed.
471    
472    2007-07-17  Ingo Feinerer  <h0125130@wu-wien.ac.at>
473    
474            * R/termdocmatrix.R (TermDocMatrix): Improved efficiency. Kudos to
475            Christian Buchta.
476    
477    2007-07-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
478    
479            * inst/doc/tm.Rnw: Update vignette (readPDF, readHTML, preprocessReut21578XML).
480    
481    2007-07-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
482    
483            * R/reader.R (readHTML): Added very simple HTML reader to obtain StructuredTextDocuments.
484    
485            * R/reader.R (readPDF): Added PDF reader.
486    
487    2007-07-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
488    
489            * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
490    
491            * inst/stopwords/english.dat: Added the term "yes" to stopwords.
492    
493            * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
494    
495            * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
496    
497    2007-07-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
498    
499            * R/distmeasure.R (dissimilarity): Replaced dists call from
500            package cba by new dist call from package proxy.
501    
502    2007-07-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
503    
504            * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
505    
506    2007-06-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
507    
508            * R/termdocmatrix.R: require() uses the quietly option to suppress
509            loading messages.
510    
511    2007-06-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
512    
513            * R/dictionary.R: Added dictionary support.
514    
515    2007-06-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
516    
517            * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
518            documents. This simplifies some functions, e.g., asPlain.
519    
520    2007-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
521    
522            * inst/doc/tm.Rnw: Fixed some typos in vignette.
523    
524    2007-06-03  Ingo Feinerer  <h0125130@wu-wien.ac.at>
525    
526            * R/textdoccol.R (replaceWords): Added method to replace a set of
527            words by a single word. Useful for synonyms.
528    
529    2007-05-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
530    
531            * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
532    
533    2007-05-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
534    
535            * R/termdocmatrix.R (textvector): Small fix for dealing with empty
536            vectors. Thanks to Ariel Maguyon for his error report.
537            (removeSparseTerms): New function to remove columns from a
538            term-document matrix exceeding a sparse factor.
539    
540    2007-05-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
541    
542            * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
543    
544    2007-05-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
545    
546            * man/sFilter.Rd: Corrected documentation on statement format (use
547            '==' instead of '=').
548    
549    2007-05-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
550    
551            * R/aobjects.R (StructuredTextDocument): Inherits from
552            TextDocument.
553    
554    2007-05-04  Ingo Feinerer  <h0125130@wu-wien.ac.at>
555    
556            * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
557            on sparse matrices as proposed by Martin Maechler.
558    
559    2007-04-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
560    
561            * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
562            \pkg{filehash} version makes them deprecated.
563    
564    2007-04-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
565    
566            * R/termdocmatrix.R (textvector): Stemming is now performed before
567            erasing stopwords.
568            (weightMatrix): Adapted to handle sparse matrices.
569            (TermDocMatrix): Sparse matrix is now efficiently built by
570            direct stepwise insertion of row values into it.
571    
572    2007-04-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
573    
574            * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
575            due to ongoing problems. For our purposes the latter is as useful
576            as the replaced package.
577    
578    2007-04-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>
579    
580            * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.
581    
582            * man/TermDocMatrix.Rd: Remove deprecated \code{language} argument.
583    
584    2007-04-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
585    
586            * R/resolve.R (resolveISOCode): Added ISO 639-1 codes for
587            languages with available stopwords.
588    
589    2007-04-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
590    
591            * inst/doc/tm.Rnw: Minor corrections in the vignette.
592    
593    2007-04-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
594    
595            * DESCRIPTION: Update to version 0.2, since a lot of new features
596            have been integrated.
597    
598            * inst/stopwords: Updated existing stopwords and added stopwords
599            for various other languages.
600    
601    2007-04-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
602    
603            * man/: Updated documentation.
604    
605            * Work/testDb.R: Script to test database stuff.
606    
607            * R/: Fixed various database related bugs. Seems to be rather
608            useable now, i.e., consider as alpha status for now.
609    
610    2007-04-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
611    
612            * R/: Fixed some bugs related to database support.
613    
614    2007-04-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
615    
616            * man/: Added a lot of examples to the manuals.
617    
618    2007-04-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
619    
620            * man/: Updated parts of the documentation.
621    
622            * R/textdoccol.R (asPlain): Added conversion from newsgroup
623            documents to plain text documents.
624    
625    2007-04-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
626    
627            * R/textdoccol.R: Finished experimental database support. Not yet
628            intensively tested.
629    
630            * R/source.R: Now each source has a default reader.
631    
632            * R/reader.R: \code{FunctionGenerator} is now an attribute, not a
633            class anymore.
634    
635            * R/plaintextdoc.R: Custom show method for plain text documents.
636    
637            * R/aobjects.R: Added a class for structured text documents.
638    
639            * R/reader.R: Replaced remaining \code{parser} occurrences with
640            \code{reader}.
641    
642            * R/textdoccol.R (summary): Indent tags.
643    
644            * R/textdoccol.R (removePunctuation): Transform method to remove
645            punctuation marks.
646    
647    2007-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
648    
649            * R/textdoccol.R (sFilter): Simplified sFilter significantly by
650            using prescindMeta().
651    
652    2007-03-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
653    
654            * R/textdoccol.R: Improved database support.
655    
656    2007-03-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
657    
658            * R/termdocmatrix.R (TermDocMatrix): Uses sparse matrices.
659    
660            * R/resolve.R (resolveISOcode): Extracts the language from a ISO
661            language code.
662    
663            * R/textdoccol.R (TextDocCol): Refactored several parser arguments
664            into parserControl argument.
665    
666            * R/aobjects.R (TextDocument): Introduced the "Language" slot.
667    
668    2007-03-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
669    
670            * Work/tmDataSetup.R: The datasets acq and crude can now be
671            created on the fly.
672    
673            * R/stopwords.R: Introduced a function returning the stopwords for
674            a given language (English, German and French at the moment)
675    
676            * R/textdoccol.R (stemDoc): Stemming uses Rstem if available,
677            otherwise falls back to Snowball package.
678    
679  2007-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>  2007-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
680    
681          * man/dissimilarity-methods.Rd: Make clear that any method offered          * man/dissimilarity-methods.Rd: Make clear that any method offered

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