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trunk/tm/ChangeLog revision 719, Sun Mar 18 09:24:47 2007 UTC pkg/ChangeLog revision 1117, Fri Feb 4 20:44:37 2011 UTC
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1    2011-02-04  Ingo Feinerer  <feinerer@logic.at>
2    
3            * R/source.R: Store strings and connections instead of unevaluated
4            calls.
5    
6    2010-11-26  Ingo Feinerer  <feinerer@logic.at>
7    
8            * R/corpus.R (Corpus): Allow init and exit hooks for readers.
9    
10    2010-10-22  Ingo Feinerer  <feinerer@logic.at>
11    
12            * R/matrix.R (.TermDocumentMatrix): Make Weighting an attribute
13            (instead of a list element).
14    
15    2010-10-16  Ingo Feinerer  <feinerer@logic.at>
16    
17            * R/corpus.R (`[[.VCorpus`, `[[.PCorpus'): Access individual
18            documents by names (fallback to IDs if names are not set).
19    
20    2010-08-25  Ingo Feinerer  <feinerer@logic.at>
21    
22            * R/corpus.R (c.Corpus): When concatenating corpora, the argument
23            \code{recursive} now determines whether existing corpus meta data
24            is used.
25    
26    2010-08-06  Ingo Feinerer  <feinerer@logic.at>
27    
28            * R/transform.R: Removed convert_UTF_8(). Use enc2utf8() instead.
29    
30    2010-06-17  Ingo Feinerer  <feinerer@logic.at>
31    
32            * R/matrix.R (TermDocumentMatrix): If a dictionary is given do not
33            remove terms not occurring in the corpus anymore.
34    
35    2010-06-02  Ingo Feinerer  <feinerer@logic.at>
36    
37            * R/plot.R (Zipf_plot, Heaps_plot): Plotting functions for Zipf's
38            and Heaps' law.
39    
40    2010-05-18  Ingo Feinerer  <feinerer@logic.at>
41    
42            * R/corpus.R (Corpus, PCorpus): Use element names as IDs if
43            provided by a source.
44    
45    2010-04-09  Ingo Feinerer  <feinerer@logic.at>
46    
47            * R/source.R (.Source): Provide document names.
48    
49    2010-04-07  Ingo Feinerer  <feinerer@logic.at>
50    
51            * R/meta.R (`content_or_meta`): Utility function.
52    
53    2010-03-19  Ingo Feinerer  <feinerer@logic.at>
54    
55            * R/reader.R (readReut21578XML, readReut21578XMLasPlain): Extract
56            TOPICS, LEWISSPLIT, CGISPLIT, and OLDID meta tags.
57    
58    2010-03-03  Ingo Feinerer  <feinerer@logic.at>
59    
60            * R/weight.R (weightTfIdf): Added normalization option.
61    
62            * man/tm_tag_score.Rd: Add General Inquirer example for sentiment
63            analysis.
64    
65    2010-02-25  Ingo Feinerer  <feinerer@logic.at>
66    
67            * R/score.R (tm_tag_score): Compute a score from the number of
68            tags matching in a document.
69    
70    2010-02-18  Ingo Feinerer  <feinerer@logic.at>
71    
72            * R/complete.R (stemCompletion): New completion heuristics.
73    
74    2010-02-17  Ingo Feinerer  <feinerer@logic.at>
75    
76            * R/plot.R (plot.TermDocumentMatrix): Memory improvements.
77    
78    2010-02-06  Ingo Feinerer  <feinerer@logic.at>
79    
80            * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
81            setOldClass(c(..., "list")) works.
82    
83    2010-01-22  Ingo Feinerer  <feinerer@logic.at>
84    
85            * R/transform.R (stemDocument.character): In case input is a
86            simple character just delegate to the default Snowball stemmer.
87    
88    2010-01-15  Ingo Feinerer  <feinerer@logic.at>
89    
90            * R/reader.R (readReut21578XML, readRCV1): Extract more meta
91            data.
92    
93    2010-01-12  Ingo Feinerer  <feinerer@logic.at>
94    
95            * R/doc.R (`Content<-`): Be careful with names attribute.
96    
97    2010-01-07  Stefan Theussl  <stefan.theussl@wu.ac.at>
98    
99            * R/source.R (DirSource): Improved implementation especially when
100            handling many (> 1M) files.
101    
102    2009-12-22  Ingo Feinerer  <feinerer@logic.at>
103    
104            * R/source.R (getElem.URISource): Use encoding argument.
105    
106    2009-12-11  Ingo Feinerer  <feinerer@logic.at>
107    
108            * R/doc.R (setOldClass): Register S3 document classes to be
109            recognized by S4 methods.
110    
111    2009-11-25  Ingo Feinerer  <feinerer@logic.at>
112    
113            * R/matrix.R (termFreq): Add option to remove punctuation
114            characters.
115    
116    2009-11-19  Ingo Feinerer  <feinerer@logic.at>
117    
118            * R/matrix.R (c.TermDocumentMatrix): Added combine method for
119            merging multiple term-document matrices.
120    
121    2009-11-17  Ingo Feinerer  <feinerer@logic.at>
122    
123            * R/corpus.R (setOldClass): Register S3 corpus classes to be
124            recognized by S4 methods.
125    
126            * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
127            that CRAN Mac OS X builds do not fail any longer.
128    
129    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
130    
131            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
132            of RWeka:AlphabeticTokenizer() as default.
133    
134    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
135    
136            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
137            caused words at the beginning or the end of a line not to be removed. Do
138            not delete whitespace anymore.
139    
140    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
141    
142            * R/source.R (DirSource): Default to working directory if no path
143            is specified.
144    
145    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
146    
147            * R/source.R (DirSource): Stop on empty directories.
148    
149    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
150    
151            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
152            named documents.
153    
154    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
155    
156            * R/transform.R (removeWords): Improve regular expressions.
157    
158    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
159    
160            * R/meta.R (DublinCore): Allow lower case tags.
161    
162    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
163    
164            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
165            instead of x$children.
166    
167    2009-09-15  Ingo Feinerer  <feinerer@logic.at>
168    
169            * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
170    
171    2009-09-06  Ingo Feinerer  <feinerer@logic.at>
172    
173            * R/: Use S3 instead of S4 class system.
174    
175    2009-08-11  Ingo Feinerer  <feinerer@logic.at>
176    
177            * R/reader.R (readMail): Moved to tm.plugin.mail package.
178    
179    2009-07-04  Ingo Feinerer  <feinerer@logic.at>
180    
181            * R/reader.R (readNewsgroup): Rename to readMail as newsgroup
182            postings are basically e-mails with some extra headers.
183    
184    2009-07-03  Ingo Feinerer  <feinerer@logic.at>
185    
186            * R/transform.R: Move convertMboxEml, removeCitation,
187            removeMultipart, and removeSignature to the tm.plugin.mail package
188            since they are mainly utility functions (for handling e-mails) and
189            not very framework specific.
190    
191    2009-06-28  Ingo Feinerer  <feinerer@logic.at>
192    
193            * man/: Fix documentation.
194    
195    2009-06-26  Ingo Feinerer  <feinerer@logic.at>
196    
197            * R/reader.R (readReut21578XMLasPlain): New reader which returns a
198            plain text document instead of an XML document for texts of the
199            Reuters-21578 dataset.
200    
201            * R/sparse.R: Removed since the slam package is now available on
202            CRAN.
203    
204            * DESCRIPTION (Depends): Add slam package.
205    
206    2009-06-17  Ingo Feinerer  <feinerer@logic.at>
207    
208            * R/transform.R (stemDoc): Fix character(0) handling.
209    
210    2009-06-12  Ingo Feinerer  <feinerer@logic.at>
211    
212            * R/doc.R (show): Pretty print.
213    
214    2009-05-27  Ingo Feinerer  <feinerer@logic.at>
215    
216            * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
217            gracefully.
218    
219    2009-05-13  Ingo Feinerer  <feinerer@logic.at>
220    
221            * R/corpus.R: Make corpus virtual. Implement corpus with standard
222            and permanent storage semantics.
223    
224            * DESCRIPTION: New major release. A *lot* of improvements.
225    
226    2009-05-04   Ingo Feinerer <feinerer@logic.at>
227    
228            * NAMESPACE: Export some simple_triplet_matrix functions.
229    
230    2009-04-28   Ingo Feinerer <feinerer@logic.at>
231    
232            * R/weight.R: Adapt tf-idf to new matrix format.
233    
234    2009-04-27  Ingo Feinerer  <feinerer@logic.at>
235    
236            * R/matrix.R: Create two distinct classes for term-document and
237            document-term matrices.
238    
239    2009-04-26  Ingo Feinerer  <feinerer@logic.at>
240    
241            * R/termdocmatrix.R: No longer use Matrix package. This reduces
242            package start-up time significantly.
243    
244    2009-04-11  Ingo Feinerer  <feinerer@logic.at>
245    
246            * inst/doc/tm.Rnw: Fix code/documentation mismatch.
247    
248    2009-04-04  Ingo Feinerer  <feinerer@logic.at>
249    
250            * R/transform.R (tmReduce): Combine multiple maps into one
251            transformation.
252    
253    2009-04-03  Ingo Feinerer  <feinerer@logic.at>
254    
255            * R/weight.R: Remove weightLogical since it does not return a
256            dgCMatrix.
257    
258            * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
259            or TermDocumentMatrix instead.
260    
261    2009-03-28  Ingo Feinerer  <feinerer@logic.at>
262    
263            * inst/doc/extensions.Rnw: Finished vignette.
264    
265    2009-03-27  Ingo Feinerer  <feinerer@logic.at>
266    
267            * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
268            DocumentTermMatrix representations.
269    
270    2009-03-23  Ingo Feinerer  <feinerer@logic.at>
271    
272            * R/reader.R (readXML): New reader for arbitrary XML files.
273    
274    2009-03-22  Ingo Feinerer  <feinerer@logic.at>
275    
276            * R/source.R (CSVSource): Defunct (use DataframeSource instead).
277            (XMLSource): New XMLSource class for arbitrary XML files.
278            (Source): New slot Vectorized.
279    
280    2009-03-21  Ingo Feinerer  <feinerer@logic.at>
281    
282            * R/reader.R (readTabular): Experimental reader for tabular data
283            structures which can be customized via user-defined mappings.
284    
285            * R/reader.R: Always use UTC time zone.
286    
287            * R/AAA.R (.onLoad): No longer try to start a MPI cluster.
288    
289    2009-03-20  Ingo Feinerer  <feinerer@logic.at>
290    
291            * R/reader.R (readDOC): Options can be passed over to antiword.
292    
293            * R/reader.R (readPDF): Options can be passed over to pdfinfo and
294            pdftotext.
295    
296    2009-03-10  Ingo Feinerer  <feinerer@logic.at>
297    
298            * R/source.R (DirSource): Add pattern and ignore.case arguments
299            which are internally passed over to list.files().
300    
301    2009-03-02  Ingo Feinerer  <feinerer@logic.at>
302    
303            * inst/doc/tm.Rnw: Suppress pointless loading message.
304    
305    2009-01-29  Ingo Feinerer  <feinerer@logic.at>
306    
307            * DESCRIPTION: Speed up package loading (via moving packages not
308            strictly necessary for normal operation to Suggests instead of
309            Depends).
310    
311    2009-01-08  Ingo Feinerer  <feinerer@logic.at>
312    
313            * R/reader.R (readNewsgroup): The date format is now configurable.
314    
315    2008-12-20  Ingo Feinerer  <feinerer@logic.at>
316    
317            * R/preprocess.R (convertMboxEml): Fix off-by-one error.
318    
319    2008-12-16  Ingo Feinerer  <feinerer@logic.at>
320    
321            * R/termdocmatrix.R (TermDocMatrix): Sort row indices.
322    
323    2008-12-06  Ingo Feinerer  <feinerer@logic.at>
324    
325            * R/source.R (DataframeSource): New source class for data frames.
326    
327            * R/source.R: Fixed non-standard call evaluation.
328    
329    2008-11-29  Ingo Feinerer  <feinerer@logic.at>
330    
331            * R/source.R (URISource): New source class for a single document.
332    
333    2008-11-27  Ingo Feinerer  <feinerer@logic.at>
334    
335            * R/source.R: Refactoring.
336    
337    2008-11-25  Ingo Feinerer  <feinerer@logic.at>
338    
339            * R/AAA.R (.onLoad, .Last): Use tryCatch() to handle misconfigured
340            Rmpi installations more gracefully.
341    
342    2008-11-08  Ingo Feinerer  <feinerer@logic.at>
343    
344            * R/source.R (Source): Add Length slot.
345    
346    2008-11-06  Ingo Feinerer  <feinerer@logic.at>
347    
348            * R/AAA.R: Unify duplicated .onLoad function.
349    
350    2008-11-03  Ingo Feinerer  <feinerer@logic.at>
351    
352            * DESCRIPTION (Suggests): Added Rmpi.
353    
354    2008-11-02  Ingo Feinerer  <feinerer@logic.at>
355    
356            * R/source.R (getElem): Fix 'no visible binding' warning.
357    
358            * man/WeightFunction.Rd: Fix signature.
359    
360    2008-08-03  Ingo Feinerer  <feinerer@logic.at>
361    
362            * R/weight.R: Introduce name abbreviations for weighting functions.
363    
364    2008-07-24  Ingo Feinerer  <feinerer@logic.at>
365    
366            * R/AAA.R (.onLoad, .Last): Start and stop MPI cluster.
367    
368            * R/cluster.R: Provide convenience functions for using a MPI
369            cluster.
370    
371            * R/termdocmatrix.R (TermDocMatrix): Use MPI cluster if
372            available.
373    
374            * R/textdoccol.R (tmIndex, tmFilter, tmMap): Use MPI cluster if
375            available.
376    
377    2008-07-17  Ingo Feinerer  <feinerer@logic.at>
378    
379            * R/textdoccol.R (lapply): Removed debug print out.
380    
381    2008-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
382    
383            * R/reader.R (readRCV1): Improved meta data extraction from
384            Reuters Corpus Volume 1 documents.
385    
386    2008-05-25  Ingo Feinerer  <h0125130@wu-wien.ac.at>
387    
388            * R/transform.R: Ensure that all mappings preserve multiline
389            structures.
390    
391    2008-05-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
392    
393            * R/filter.R: Every filter has now an attribute indicating whether
394            it sould be applied to document level (doclevel).
395    
396            * R/textdoccol.R (tmFilter): Set searchFullText as new default
397            filter.
398    
399    2008-04-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
400    
401            * R/transform.R (replacePatterns): Replaced removeWords by
402            replacePatterns. Suggested by Christian Buchta.
403    
404            * R/textdoccol.R (inspect): Improved formatting.
405    
406    2008-04-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
407    
408            * inst/CITATION: Updated JSS article information.
409    
410            * R/textdoccol.R (setAs): Added coerce method from list to
411            corpus.
412    
413            * R/meta.R (meta): Improved meta data handling.
414    
415    2008-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
416    
417            * R/textdoccol.R (materialize, tmMap): Improvements suggested by
418            Christian Buchta.
419    
420            * inst/CITATION: Added template to include JSS article reference.
421    
422    2008-03-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
423    
424            * R/textdoccol.R (tmMap): Introduced lazy mapping.
425    
426            * R/source.R: Added VectorSource.
427    
428    2008-02-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
429    
430            * man/: Language codes should be in ISO 639-1 format.
431    
432            * R/textdoccol.R (asPlain): Preserve local meta data.
433    
434    2008-01-31  Ingo Feinerer  <h0125130@wu-wien.ac.at>
435    
436            * R/textdoccol.R (writeCorpus): Function for writing a corpus
437            containing plain text documents to disk.
438    
439    2008-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
440    
441            * R/termdocmatrix.R (TermDocMatrix): Ensure that dimnames are
442            always set correctly.
443    
444            * R/textdoccol.R: Set load = TRUE as default for load on demand
445            since in most cases this is the wanted behaviour.
446    
447    2008-01-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
448    
449            * R/: Renamed TextDocCol to Corpus, and Corpus to Content.
450    
451            * DESCRIPTION: Updated Version to 0.3 due to core name changes.
452    
453    2008-01-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
454    
455            * R/meta.R (meta): New function for consistent access to meta data
456            of document collections, repositories, and texts.
457    
458    2008-01-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
459    
460            * R/: Better support for encodings.
461    
462    2008-01-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
463    
464            * R/textdoccol.R (TextDocCol): Fixed bug regarding default reader
465            selection when no reader argument is given.
466    
467    2008-01-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
468    
469            * R/source.R (CSVSource): Now uses read.csv instead of scan
470            internally.
471    
472    2008-01-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
473    
474            * R/reader.R (getReaders): Returns available reader functions.
475    
476            * R/termdocmatrix.R (TermDocMatrix): Set new modular constructor
477            as default.
478    
479    2007-12-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
480    
481            * R/stopwords.R (stopwords): Shortened code, removed codetools
482            variable warnings.
483    
484            * man/: Documentation for showMeta, added an example for tmMap.
485    
486            * inst/doc/tm.Rnw: Updated vignette, comments on MS word reader,
487            some minor typos fixed.
488    
489    2007-12-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
490    
491            * R/aobjects.R (showMeta): Added method for pretty printing a
492            text document's meta data.
493    
494    2007-11-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
495    
496            * R/textdoccol.R (TextDocCol): Better handling of empty
497            arguments.
498    
499            * NAMESPACE: Exported readDOC.
500    
501            * man/completeStems.Rd: Added an example.
502    
503    2007-11-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
504    
505            * R/stopwords.R (stopwords): Look up .dat files at every
506            call. Allows users to modify stopword .dat files interactively.
507    
508    2007-11-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
509    
510            * R/termdocmatrix.R (termFreq): Correct processing of empty
511            documents.
512    
513    2007-10-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
514    
515            * man/: Updated documentation.
516    
517    2007-10-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
518    
519            * R/complete.R (completeStems): Completes (heuristically) word
520            stems.
521    
522            * R/termdocmatrix.R (TermDocMatrix2): New modular
523            constructor.
524    
525            * NAMESPACE: Exported termFreq.
526    
527    2007-10-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
528    
529            * R/reader.R (readDOC): Added MS Word reader (using antiword).
530    
531    2007-10-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
532    
533            * R/weight.R: Weighting functions for TermDocMatrix.
534    
535    2007-10-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
536    
537            * R/termdocmatrix.R (dimnames, colnames, rownames): Wrapper
538            functions for accessing dimension, column, and row names.
539    
540            * R/plot.R (plot.TermDocMatrix): Plot correlations between terms.
541    
542    2007-09-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
543    
544            * man/removePunctuation.Rd: Added documentation. Function also exported to NAMESPACE.
545    
546    2007-08-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
547    
548            * R/fungen.R: Use S4 class for function generators instead of S3 attributes.
549    
550    2007-07-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
551    
552            * R/reader.R (readPDF): Removed manual checks for pdftotext and
553            pdfinfo. The system call gives a warning anyway.
554    
555    2007-07-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
556    
557            * R/textdoccol.R (asPlain): Conversion from
558            StructuredTextDocuments to PlainTextDocuments.
559    
560    2007-07-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
561    
562            * R/termdocmatrix.R: Added convenience methods ("[", nrow, ncol)
563            for accessing term-document matrices.
564    
565            * inst/doc/tm.Rnw: readPDF is only called if pdftotext and pdfinfo
566            are installed.
567    
568    2007-07-17  Ingo Feinerer  <h0125130@wu-wien.ac.at>
569    
570            * R/termdocmatrix.R (TermDocMatrix): Improved efficiency. Kudos to
571            Christian Buchta.
572    
573    2007-07-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
574    
575            * inst/doc/tm.Rnw: Update vignette (readPDF, readHTML, preprocessReut21578XML).
576    
577    2007-07-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
578    
579            * R/reader.R (readHTML): Added very simple HTML reader to obtain StructuredTextDocuments.
580    
581            * R/reader.R (readPDF): Added PDF reader.
582    
583    2007-07-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
584    
585            * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
586    
587            * inst/stopwords/english.dat: Added the term "yes" to stopwords.
588    
589            * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
590    
591            * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
592    
593    2007-07-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
594    
595            * R/distmeasure.R (dissimilarity): Replaced dists call from
596            package cba by new dist call from package proxy.
597    
598    2007-07-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
599    
600            * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
601    
602    2007-06-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
603    
604            * R/termdocmatrix.R: require() uses the quietly option to suppress
605            loading messages.
606    
607    2007-06-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
608    
609            * R/dictionary.R: Added dictionary support.
610    
611    2007-06-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
612    
613            * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
614            documents. This simplifies some functions, e.g., asPlain.
615    
616    2007-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
617    
618            * inst/doc/tm.Rnw: Fixed some typos in vignette.
619    
620    2007-06-03  Ingo Feinerer  <h0125130@wu-wien.ac.at>
621    
622            * R/textdoccol.R (replaceWords): Added method to replace a set of
623            words by a single word. Useful for synonyms.
624    
625    2007-05-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
626    
627            * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
628    
629    2007-05-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
630    
631            * R/termdocmatrix.R (textvector): Small fix for dealing with empty
632            vectors. Thanks to Ariel Maguyon for his error report.
633            (removeSparseTerms): New function to remove columns from a
634            term-document matrix exceeding a sparse factor.
635    
636    2007-05-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
637    
638            * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
639    
640    2007-05-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
641    
642            * man/sFilter.Rd: Corrected documentation on statement format (use
643            '==' instead of '=').
644    
645    2007-05-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
646    
647            * R/aobjects.R (StructuredTextDocument): Inherits from
648            TextDocument.
649    
650    2007-05-04  Ingo Feinerer  <h0125130@wu-wien.ac.at>
651    
652            * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
653            on sparse matrices as proposed by Martin Maechler.
654    
655    2007-04-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
656    
657            * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
658            \pkg{filehash} version makes them deprecated.
659    
660    2007-04-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
661    
662            * R/termdocmatrix.R (textvector): Stemming is now performed before
663            erasing stopwords.
664            (weightMatrix): Adapted to handle sparse matrices.
665            (TermDocMatrix): Sparse matrix is now efficiently built by
666            direct stepwise insertion of row values into it.
667    
668    2007-04-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
669    
670            * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
671            due to ongoing problems. For our purposes the latter is as useful
672            as the replaced package.
673    
674    2007-04-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>
675    
676            * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.
677    
678            * man/TermDocMatrix.Rd: Remove deprecated \code{language} argument.
679    
680    2007-04-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
681    
682            * R/resolve.R (resolveISOCode): Added ISO 639-1 codes for
683            languages with available stopwords.
684    
685    2007-04-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
686    
687            * inst/doc/tm.Rnw: Minor corrections in the vignette.
688    
689    2007-04-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
690    
691            * DESCRIPTION: Update to version 0.2, since a lot of new features
692            have been integrated.
693    
694            * inst/stopwords: Updated existing stopwords and added stopwords
695            for various other languages.
696    
697    2007-04-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
698    
699            * man/: Updated documentation.
700    
701            * Work/testDb.R: Script to test database stuff.
702    
703            * R/: Fixed various database related bugs. Seems to be rather
704            useable now, i.e., consider as alpha status for now.
705    
706    2007-04-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
707    
708            * R/: Fixed some bugs related to database support.
709    
710    2007-04-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
711    
712            * man/: Added a lot of examples to the manuals.
713    
714    2007-04-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
715    
716            * man/: Updated parts of the documentation.
717    
718            * R/textdoccol.R (asPlain): Added conversion from newsgroup
719            documents to plain text documents.
720    
721    2007-04-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
722    
723            * R/textdoccol.R: Finished experimental database support. Not yet
724            intensively tested.
725    
726            * R/source.R: Now each source has a default reader.
727    
728            * R/reader.R: \code{FunctionGenerator} is now an attribute, not a
729            class anymore.
730    
731            * R/plaintextdoc.R: Custom show method for plain text documents.
732    
733            * R/aobjects.R: Added a class for structured text documents.
734    
735            * R/reader.R: Replaced remaining \code{parser} occurrences with
736            \code{reader}.
737    
738            * R/textdoccol.R (summary): Indent tags.
739    
740            * R/textdoccol.R (removePunctuation): Transform method to remove
741            punctuation marks.
742    
743    2007-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
744    
745            * R/textdoccol.R (sFilter): Simplified sFilter significantly by
746            using prescindMeta().
747    
748  2007-03-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>  2007-03-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
749    
750          * R/textdoccol.R: Improved database support.          * R/textdoccol.R: Improved database support.

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