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trunk/tm/ChangeLog revision 731, Wed Apr 11 14:01:40 2007 UTC pkg/ChangeLog revision 1114, Fri Nov 26 14:05:54 2010 UTC
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1    2010-11-26  Ingo Feinerer  <feinerer@logic.at>
2    
3            * R/corpus.R (Corpus): Allow init and exit hooks for readers.
4    
5    2010-10-22  Ingo Feinerer  <feinerer@logic.at>
6    
7            * R/matrix.R (.TermDocumentMatrix): Make Weighting an attribute
8            (instead of a list element).
9    
10    2010-10-16  Ingo Feinerer  <feinerer@logic.at>
11    
12            * R/corpus.R (`[[.VCorpus`, `[[.PCorpus'): Access individual
13            documents by names (fallback to IDs if names are not set).
14    
15    2010-08-25  Ingo Feinerer  <feinerer@logic.at>
16    
17            * R/corpus.R (c.Corpus): When concatenating corpora, the argument
18            \code{recursive} now determines whether existing corpus meta data
19            is used.
20    
21    2010-08-06  Ingo Feinerer  <feinerer@logic.at>
22    
23            * R/transform.R: Removed convert_UTF_8(). Use enc2utf8() instead.
24    
25    2010-06-17  Ingo Feinerer  <feinerer@logic.at>
26    
27            * R/matrix.R (TermDocumentMatrix): If a dictionary is given do not
28            remove terms not occurring in the corpus anymore.
29    
30    2010-06-02  Ingo Feinerer  <feinerer@logic.at>
31    
32            * R/plot.R (Zipf_plot, Heaps_plot): Plotting functions for Zipf's
33            and Heaps' law.
34    
35    2010-05-18  Ingo Feinerer  <feinerer@logic.at>
36    
37            * R/corpus.R (Corpus, PCorpus): Use element names as IDs if
38            provided by a source.
39    
40    2010-04-09  Ingo Feinerer  <feinerer@logic.at>
41    
42            * R/source.R (.Source): Provide document names.
43    
44    2010-04-07  Ingo Feinerer  <feinerer@logic.at>
45    
46            * R/meta.R (`content_or_meta`): Utility function.
47    
48    2010-03-19  Ingo Feinerer  <feinerer@logic.at>
49    
50            * R/reader.R (readReut21578XML, readReut21578XMLasPlain): Extract
51            TOPICS, LEWISSPLIT, CGISPLIT, and OLDID meta tags.
52    
53    2010-03-03  Ingo Feinerer  <feinerer@logic.at>
54    
55            * R/weight.R (weightTfIdf): Added normalization option.
56    
57            * man/tm_tag_score.Rd: Add General Inquirer example for sentiment
58            analysis.
59    
60    2010-02-25  Ingo Feinerer  <feinerer@logic.at>
61    
62            * R/score.R (tm_tag_score): Compute a score from the number of
63            tags matching in a document.
64    
65    2010-02-18  Ingo Feinerer  <feinerer@logic.at>
66    
67            * R/complete.R (stemCompletion): New completion heuristics.
68    
69    2010-02-17  Ingo Feinerer  <feinerer@logic.at>
70    
71            * R/plot.R (plot.TermDocumentMatrix): Memory improvements.
72    
73    2010-02-06  Ingo Feinerer  <feinerer@logic.at>
74    
75            * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
76            setOldClass(c(..., "list")) works.
77    
78    2010-01-22  Ingo Feinerer  <feinerer@logic.at>
79    
80            * R/transform.R (stemDocument.character): In case input is a
81            simple character just delegate to the default Snowball stemmer.
82    
83    2010-01-15  Ingo Feinerer  <feinerer@logic.at>
84    
85            * R/reader.R (readReut21578XML, readRCV1): Extract more meta
86            data.
87    
88    2010-01-12  Ingo Feinerer  <feinerer@logic.at>
89    
90            * R/doc.R (`Content<-`): Be careful with names attribute.
91    
92    2010-01-07  Stefan Theussl  <stefan.theussl@wu.ac.at>
93    
94            * R/source.R (DirSource): Improved implementation especially when
95            handling many (> 1M) files.
96    
97    2009-12-22  Ingo Feinerer  <feinerer@logic.at>
98    
99            * R/source.R (getElem.URISource): Use encoding argument.
100    
101    2009-12-11  Ingo Feinerer  <feinerer@logic.at>
102    
103            * R/doc.R (setOldClass): Register S3 document classes to be
104            recognized by S4 methods.
105    
106    2009-11-25  Ingo Feinerer  <feinerer@logic.at>
107    
108            * R/matrix.R (termFreq): Add option to remove punctuation
109            characters.
110    
111    2009-11-19  Ingo Feinerer  <feinerer@logic.at>
112    
113            * R/matrix.R (c.TermDocumentMatrix): Added combine method for
114            merging multiple term-document matrices.
115    
116    2009-11-17  Ingo Feinerer  <feinerer@logic.at>
117    
118            * R/corpus.R (setOldClass): Register S3 corpus classes to be
119            recognized by S4 methods.
120    
121            * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
122            that CRAN Mac OS X builds do not fail any longer.
123    
124    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
125    
126            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
127            of RWeka:AlphabeticTokenizer() as default.
128    
129    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
130    
131            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
132            caused words at the beginning or the end of a line not to be removed. Do
133            not delete whitespace anymore.
134    
135    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
136    
137            * R/source.R (DirSource): Default to working directory if no path
138            is specified.
139    
140    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
141    
142            * R/source.R (DirSource): Stop on empty directories.
143    
144    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
145    
146            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
147            named documents.
148    
149    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
150    
151            * R/transform.R (removeWords): Improve regular expressions.
152    
153    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
154    
155            * R/meta.R (DublinCore): Allow lower case tags.
156    
157    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
158    
159            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
160            instead of x$children.
161    
162    2009-09-15  Ingo Feinerer  <feinerer@logic.at>
163    
164            * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
165    
166    2009-09-06  Ingo Feinerer  <feinerer@logic.at>
167    
168            * R/: Use S3 instead of S4 class system.
169    
170    2009-08-11  Ingo Feinerer  <feinerer@logic.at>
171    
172            * R/reader.R (readMail): Moved to tm.plugin.mail package.
173    
174    2009-07-04  Ingo Feinerer  <feinerer@logic.at>
175    
176            * R/reader.R (readNewsgroup): Rename to readMail as newsgroup
177            postings are basically e-mails with some extra headers.
178    
179    2009-07-03  Ingo Feinerer  <feinerer@logic.at>
180    
181            * R/transform.R: Move convertMboxEml, removeCitation,
182            removeMultipart, and removeSignature to the tm.plugin.mail package
183            since they are mainly utility functions (for handling e-mails) and
184            not very framework specific.
185    
186    2009-06-28  Ingo Feinerer  <feinerer@logic.at>
187    
188            * man/: Fix documentation.
189    
190    2009-06-26  Ingo Feinerer  <feinerer@logic.at>
191    
192            * R/reader.R (readReut21578XMLasPlain): New reader which returns a
193            plain text document instead of an XML document for texts of the
194            Reuters-21578 dataset.
195    
196            * R/sparse.R: Removed since the slam package is now available on
197            CRAN.
198    
199            * DESCRIPTION (Depends): Add slam package.
200    
201    2009-06-17  Ingo Feinerer  <feinerer@logic.at>
202    
203            * R/transform.R (stemDoc): Fix character(0) handling.
204    
205    2009-06-12  Ingo Feinerer  <feinerer@logic.at>
206    
207            * R/doc.R (show): Pretty print.
208    
209    2009-05-27  Ingo Feinerer  <feinerer@logic.at>
210    
211            * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
212            gracefully.
213    
214    2009-05-13  Ingo Feinerer  <feinerer@logic.at>
215    
216            * R/corpus.R: Make corpus virtual. Implement corpus with standard
217            and permanent storage semantics.
218    
219            * DESCRIPTION: New major release. A *lot* of improvements.
220    
221    2009-05-04   Ingo Feinerer <feinerer@logic.at>
222    
223            * NAMESPACE: Export some simple_triplet_matrix functions.
224    
225    2009-04-28   Ingo Feinerer <feinerer@logic.at>
226    
227            * R/weight.R: Adapt tf-idf to new matrix format.
228    
229    2009-04-27  Ingo Feinerer  <feinerer@logic.at>
230    
231            * R/matrix.R: Create two distinct classes for term-document and
232            document-term matrices.
233    
234    2009-04-26  Ingo Feinerer  <feinerer@logic.at>
235    
236            * R/termdocmatrix.R: No longer use Matrix package. This reduces
237            package start-up time significantly.
238    
239    2009-04-11  Ingo Feinerer  <feinerer@logic.at>
240    
241            * inst/doc/tm.Rnw: Fix code/documentation mismatch.
242    
243    2009-04-04  Ingo Feinerer  <feinerer@logic.at>
244    
245            * R/transform.R (tmReduce): Combine multiple maps into one
246            transformation.
247    
248    2009-04-03  Ingo Feinerer  <feinerer@logic.at>
249    
250            * R/weight.R: Remove weightLogical since it does not return a
251            dgCMatrix.
252    
253            * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
254            or TermDocumentMatrix instead.
255    
256    2009-03-28  Ingo Feinerer  <feinerer@logic.at>
257    
258            * inst/doc/extensions.Rnw: Finished vignette.
259    
260    2009-03-27  Ingo Feinerer  <feinerer@logic.at>
261    
262            * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
263            DocumentTermMatrix representations.
264    
265    2009-03-23  Ingo Feinerer  <feinerer@logic.at>
266    
267            * R/reader.R (readXML): New reader for arbitrary XML files.
268    
269    2009-03-22  Ingo Feinerer  <feinerer@logic.at>
270    
271            * R/source.R (CSVSource): Defunct (use DataframeSource instead).
272            (XMLSource): New XMLSource class for arbitrary XML files.
273            (Source): New slot Vectorized.
274    
275    2009-03-21  Ingo Feinerer  <feinerer@logic.at>
276    
277            * R/reader.R (readTabular): Experimental reader for tabular data
278            structures which can be customized via user-defined mappings.
279    
280            * R/reader.R: Always use UTC time zone.
281    
282            * R/AAA.R (.onLoad): No longer try to start a MPI cluster.
283    
284    2009-03-20  Ingo Feinerer  <feinerer@logic.at>
285    
286            * R/reader.R (readDOC): Options can be passed over to antiword.
287    
288            * R/reader.R (readPDF): Options can be passed over to pdfinfo and
289            pdftotext.
290    
291    2009-03-10  Ingo Feinerer  <feinerer@logic.at>
292    
293            * R/source.R (DirSource): Add pattern and ignore.case arguments
294            which are internally passed over to list.files().
295    
296    2009-03-02  Ingo Feinerer  <feinerer@logic.at>
297    
298            * inst/doc/tm.Rnw: Suppress pointless loading message.
299    
300    2009-01-29  Ingo Feinerer  <feinerer@logic.at>
301    
302            * DESCRIPTION: Speed up package loading (via moving packages not
303            strictly necessary for normal operation to Suggests instead of
304            Depends).
305    
306    2009-01-08  Ingo Feinerer  <feinerer@logic.at>
307    
308            * R/reader.R (readNewsgroup): The date format is now configurable.
309    
310    2008-12-20  Ingo Feinerer  <feinerer@logic.at>
311    
312            * R/preprocess.R (convertMboxEml): Fix off-by-one error.
313    
314    2008-12-16  Ingo Feinerer  <feinerer@logic.at>
315    
316            * R/termdocmatrix.R (TermDocMatrix): Sort row indices.
317    
318    2008-12-06  Ingo Feinerer  <feinerer@logic.at>
319    
320            * R/source.R (DataframeSource): New source class for data frames.
321    
322            * R/source.R: Fixed non-standard call evaluation.
323    
324    2008-11-29  Ingo Feinerer  <feinerer@logic.at>
325    
326            * R/source.R (URISource): New source class for a single document.
327    
328    2008-11-27  Ingo Feinerer  <feinerer@logic.at>
329    
330            * R/source.R: Refactoring.
331    
332    2008-11-25  Ingo Feinerer  <feinerer@logic.at>
333    
334            * R/AAA.R (.onLoad, .Last): Use tryCatch() to handle misconfigured
335            Rmpi installations more gracefully.
336    
337    2008-11-08  Ingo Feinerer  <feinerer@logic.at>
338    
339            * R/source.R (Source): Add Length slot.
340    
341    2008-11-06  Ingo Feinerer  <feinerer@logic.at>
342    
343            * R/AAA.R: Unify duplicated .onLoad function.
344    
345    2008-11-03  Ingo Feinerer  <feinerer@logic.at>
346    
347            * DESCRIPTION (Suggests): Added Rmpi.
348    
349    2008-11-02  Ingo Feinerer  <feinerer@logic.at>
350    
351            * R/source.R (getElem): Fix 'no visible binding' warning.
352    
353            * man/WeightFunction.Rd: Fix signature.
354    
355    2008-08-03  Ingo Feinerer  <feinerer@logic.at>
356    
357            * R/weight.R: Introduce name abbreviations for weighting functions.
358    
359    2008-07-24  Ingo Feinerer  <feinerer@logic.at>
360    
361            * R/AAA.R (.onLoad, .Last): Start and stop MPI cluster.
362    
363            * R/cluster.R: Provide convenience functions for using a MPI
364            cluster.
365    
366            * R/termdocmatrix.R (TermDocMatrix): Use MPI cluster if
367            available.
368    
369            * R/textdoccol.R (tmIndex, tmFilter, tmMap): Use MPI cluster if
370            available.
371    
372    2008-07-17  Ingo Feinerer  <feinerer@logic.at>
373    
374            * R/textdoccol.R (lapply): Removed debug print out.
375    
376    2008-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
377    
378            * R/reader.R (readRCV1): Improved meta data extraction from
379            Reuters Corpus Volume 1 documents.
380    
381    2008-05-25  Ingo Feinerer  <h0125130@wu-wien.ac.at>
382    
383            * R/transform.R: Ensure that all mappings preserve multiline
384            structures.
385    
386    2008-05-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
387    
388            * R/filter.R: Every filter has now an attribute indicating whether
389            it sould be applied to document level (doclevel).
390    
391            * R/textdoccol.R (tmFilter): Set searchFullText as new default
392            filter.
393    
394    2008-04-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
395    
396            * R/transform.R (replacePatterns): Replaced removeWords by
397            replacePatterns. Suggested by Christian Buchta.
398    
399            * R/textdoccol.R (inspect): Improved formatting.
400    
401    2008-04-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
402    
403            * inst/CITATION: Updated JSS article information.
404    
405            * R/textdoccol.R (setAs): Added coerce method from list to
406            corpus.
407    
408            * R/meta.R (meta): Improved meta data handling.
409    
410    2008-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
411    
412            * R/textdoccol.R (materialize, tmMap): Improvements suggested by
413            Christian Buchta.
414    
415            * inst/CITATION: Added template to include JSS article reference.
416    
417    2008-03-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
418    
419            * R/textdoccol.R (tmMap): Introduced lazy mapping.
420    
421            * R/source.R: Added VectorSource.
422    
423    2008-02-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
424    
425            * man/: Language codes should be in ISO 639-1 format.
426    
427            * R/textdoccol.R (asPlain): Preserve local meta data.
428    
429    2008-01-31  Ingo Feinerer  <h0125130@wu-wien.ac.at>
430    
431            * R/textdoccol.R (writeCorpus): Function for writing a corpus
432            containing plain text documents to disk.
433    
434    2008-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
435    
436            * R/termdocmatrix.R (TermDocMatrix): Ensure that dimnames are
437            always set correctly.
438    
439            * R/textdoccol.R: Set load = TRUE as default for load on demand
440            since in most cases this is the wanted behaviour.
441    
442    2008-01-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
443    
444            * R/: Renamed TextDocCol to Corpus, and Corpus to Content.
445    
446            * DESCRIPTION: Updated Version to 0.3 due to core name changes.
447    
448    2008-01-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
449    
450            * R/meta.R (meta): New function for consistent access to meta data
451            of document collections, repositories, and texts.
452    
453    2008-01-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
454    
455            * R/: Better support for encodings.
456    
457    2008-01-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
458    
459            * R/textdoccol.R (TextDocCol): Fixed bug regarding default reader
460            selection when no reader argument is given.
461    
462    2008-01-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
463    
464            * R/source.R (CSVSource): Now uses read.csv instead of scan
465            internally.
466    
467    2008-01-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
468    
469            * R/reader.R (getReaders): Returns available reader functions.
470    
471            * R/termdocmatrix.R (TermDocMatrix): Set new modular constructor
472            as default.
473    
474    2007-12-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
475    
476            * R/stopwords.R (stopwords): Shortened code, removed codetools
477            variable warnings.
478    
479            * man/: Documentation for showMeta, added an example for tmMap.
480    
481            * inst/doc/tm.Rnw: Updated vignette, comments on MS word reader,
482            some minor typos fixed.
483    
484    2007-12-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
485    
486            * R/aobjects.R (showMeta): Added method for pretty printing a
487            text document's meta data.
488    
489    2007-11-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
490    
491            * R/textdoccol.R (TextDocCol): Better handling of empty
492            arguments.
493    
494            * NAMESPACE: Exported readDOC.
495    
496            * man/completeStems.Rd: Added an example.
497    
498    2007-11-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
499    
500            * R/stopwords.R (stopwords): Look up .dat files at every
501            call. Allows users to modify stopword .dat files interactively.
502    
503    2007-11-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
504    
505            * R/termdocmatrix.R (termFreq): Correct processing of empty
506            documents.
507    
508    2007-10-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
509    
510            * man/: Updated documentation.
511    
512    2007-10-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
513    
514            * R/complete.R (completeStems): Completes (heuristically) word
515            stems.
516    
517            * R/termdocmatrix.R (TermDocMatrix2): New modular
518            constructor.
519    
520            * NAMESPACE: Exported termFreq.
521    
522    2007-10-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
523    
524            * R/reader.R (readDOC): Added MS Word reader (using antiword).
525    
526    2007-10-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
527    
528            * R/weight.R: Weighting functions for TermDocMatrix.
529    
530    2007-10-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
531    
532            * R/termdocmatrix.R (dimnames, colnames, rownames): Wrapper
533            functions for accessing dimension, column, and row names.
534    
535            * R/plot.R (plot.TermDocMatrix): Plot correlations between terms.
536    
537    2007-09-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
538    
539            * man/removePunctuation.Rd: Added documentation. Function also exported to NAMESPACE.
540    
541    2007-08-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
542    
543            * R/fungen.R: Use S4 class for function generators instead of S3 attributes.
544    
545    2007-07-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
546    
547            * R/reader.R (readPDF): Removed manual checks for pdftotext and
548            pdfinfo. The system call gives a warning anyway.
549    
550    2007-07-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
551    
552            * R/textdoccol.R (asPlain): Conversion from
553            StructuredTextDocuments to PlainTextDocuments.
554    
555    2007-07-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
556    
557            * R/termdocmatrix.R: Added convenience methods ("[", nrow, ncol)
558            for accessing term-document matrices.
559    
560            * inst/doc/tm.Rnw: readPDF is only called if pdftotext and pdfinfo
561            are installed.
562    
563    2007-07-17  Ingo Feinerer  <h0125130@wu-wien.ac.at>
564    
565            * R/termdocmatrix.R (TermDocMatrix): Improved efficiency. Kudos to
566            Christian Buchta.
567    
568    2007-07-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
569    
570            * inst/doc/tm.Rnw: Update vignette (readPDF, readHTML, preprocessReut21578XML).
571    
572    2007-07-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
573    
574            * R/reader.R (readHTML): Added very simple HTML reader to obtain StructuredTextDocuments.
575    
576            * R/reader.R (readPDF): Added PDF reader.
577    
578    2007-07-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
579    
580            * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
581    
582            * inst/stopwords/english.dat: Added the term "yes" to stopwords.
583    
584            * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
585    
586            * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
587    
588    2007-07-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
589    
590            * R/distmeasure.R (dissimilarity): Replaced dists call from
591            package cba by new dist call from package proxy.
592    
593    2007-07-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
594    
595            * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
596    
597    2007-06-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
598    
599            * R/termdocmatrix.R: require() uses the quietly option to suppress
600            loading messages.
601    
602    2007-06-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
603    
604            * R/dictionary.R: Added dictionary support.
605    
606    2007-06-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
607    
608            * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
609            documents. This simplifies some functions, e.g., asPlain.
610    
611    2007-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
612    
613            * inst/doc/tm.Rnw: Fixed some typos in vignette.
614    
615    2007-06-03  Ingo Feinerer  <h0125130@wu-wien.ac.at>
616    
617            * R/textdoccol.R (replaceWords): Added method to replace a set of
618            words by a single word. Useful for synonyms.
619    
620    2007-05-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
621    
622            * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
623    
624    2007-05-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
625    
626            * R/termdocmatrix.R (textvector): Small fix for dealing with empty
627            vectors. Thanks to Ariel Maguyon for his error report.
628            (removeSparseTerms): New function to remove columns from a
629            term-document matrix exceeding a sparse factor.
630    
631    2007-05-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
632    
633            * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
634    
635    2007-05-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
636    
637            * man/sFilter.Rd: Corrected documentation on statement format (use
638            '==' instead of '=').
639    
640    2007-05-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
641    
642            * R/aobjects.R (StructuredTextDocument): Inherits from
643            TextDocument.
644    
645    2007-05-04  Ingo Feinerer  <h0125130@wu-wien.ac.at>
646    
647            * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
648            on sparse matrices as proposed by Martin Maechler.
649    
650    2007-04-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
651    
652            * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
653            \pkg{filehash} version makes them deprecated.
654    
655    2007-04-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
656    
657            * R/termdocmatrix.R (textvector): Stemming is now performed before
658            erasing stopwords.
659            (weightMatrix): Adapted to handle sparse matrices.
660            (TermDocMatrix): Sparse matrix is now efficiently built by
661            direct stepwise insertion of row values into it.
662    
663    2007-04-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
664    
665            * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
666            due to ongoing problems. For our purposes the latter is as useful
667            as the replaced package.
668    
669    2007-04-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>
670    
671            * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.
672    
673            * man/TermDocMatrix.Rd: Remove deprecated \code{language} argument.
674    
675    2007-04-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
676    
677            * R/resolve.R (resolveISOCode): Added ISO 639-1 codes for
678            languages with available stopwords.
679    
680    2007-04-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
681    
682            * inst/doc/tm.Rnw: Minor corrections in the vignette.
683    
684  2007-04-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>  2007-04-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
685    
686          * inst/stopwords: Updated stopwords.          * DESCRIPTION: Update to version 0.2, since a lot of new features
687            have been integrated.
688    
689            * inst/stopwords: Updated existing stopwords and added stopwords
690            for various other languages.
691    
692  2007-04-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>  2007-04-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
693    

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