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trunk/tm/ChangeLog revision 711, Tue Jan 30 13:03:55 2007 UTC pkg/ChangeLog revision 1192, Thu Oct 4 07:31:01 2012 UTC
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1    2012-10-03 Ingo Feinerer  <feinerer@logic.at>
2            * R/weight.R (weightTfIdf, weightSMART): Gracefully handle empty
3            columns and rows (avoids blow-up due to NaN values). Suggested by Jaap
4            Frölich.
5    
6    2012-07-27 Ingo Feinerer  <feinerer@logic.at>
7    
8            * R/transform.R (removeWords): Allow longer stopword lists.
9    
10    2012-01-31  Ingo Feinerer  <feinerer@logic.at>
11    
12            * R/reader.R (readXML): Readers can now set the document language
13            themselves.
14    
15    2012-01-14  Ingo Feinerer  <feinerer@logic.at>
16    
17            * R/source.R (XMLSource, getElem.XMLSource): Simplifications as
18            proposed by Milan Bouchet-Valat.
19    
20    2012-01-11  Ingo Feinerer  <feinerer@logic.at>
21    
22            * R/matrix.R (termFreq): Fix processing of user provided
23            stopwords. Reported by Bettina Grün.
24    
25    2011-12-23  Ingo Feinerer  <feinerer@logic.at>
26    
27            * R/matrix.R (termFreq): Fix invalid handling of
28            control$wordLengths[1]. Reported by Steven C. Bagley.
29    
30    2011-12-17  Ingo Feinerer  <feinerer@logic.at>
31    
32            * DESCRIPTION (Version): Prepare for CRAN Christmas release.
33    
34    2011-12-12  Ingo Feinerer  <feinerer@logic.at>
35    
36            * R/utils.R (map_IETF_Snowball): Map empty input to "porter".
37    
38    2011-12-07  Ingo Feinerer  <feinerer@logic.at>
39    
40            * R/transform.R (removePunctuation): Add option to preserve
41            intra-word dashes.
42    
43    2011-12-06  Ingo Feinerer  <feinerer@logic.at>
44    
45            * R/matrix.R (termFreq): Allow reordering of control option
46            processing.
47    
48    2011-11-17  Ingo Feinerer  <feinerer@logic.at>
49    
50            * R/reader.R (readPDF): Use tools:::pdf_info() instead of external
51            pdfinfo tool.
52    
53            * inst/stopwords/SMART.dat: Add SMART information retrieval system
54            stopwords (which are also used by the MC toolkit).
55    
56            * R/matrix (termFreq): Allow local option \code{bounds$local} to
57            restrict how often a term may appear in each document (generalizes
58            \code{minDocFreq}). Similarly the local option \code{wordLenghts}
59            for word length bounds (generalizes \code{minWordLength}).
60    
61            * R/matrix.R (TermDocumentMatrix.VCorpus): New global option
62            \code{bounds$global} for restricting how often a term is allowed
63            to appear in different documents.
64    
65            * R/matrix.R (TermDocumentMatrix.VCorpus): Distinguish between
66            local options delegated internally to termFreq() and global
67            options which are processed by the term-document matrix
68            constructor itself.
69    
70    2011-11-15  Ingo Feinerer  <feinerer@logic.at>
71    
72            * man/getTokenizers.Rd: Document getTokenizers().
73    
74            * man/tokenizer.Rd: Document MC_tokenizer() and scan_tokenizer().
75    
76    2011-11-04  Ingo Feinerer  <feinerer@logic.at>
77    
78            * man/matrix.Rd: Document as.TermDocumentMatrix.term_frequency.
79    
80            * man/combine.Rd: Document c.term_frequency().
81    
82    2011-10-11  Ingo Feinerer  <feinerer@logic.at>
83    
84            * R/meta.R (`meta<-.Corpus`): Assume that the replacement value
85            can be accessed via '[' and not '[['.
86    
87    2011-08-24  Ingo Feinerer  <feinerer@logic.at>
88    
89            * R/stopwords.R (stopwords): Raise an error if no stopwords are
90            available for requested language. Suggested by Derek M Jones.
91    
92    2011-05-27  Ingo Feinerer  <feinerer@logic.at>
93    
94            * R/weight.R (weightSMART): Implement Cosine and pivoted unique
95            normalization.
96    
97    2011-02-17  Ingo Feinerer  <feinerer@logic.at>
98    
99            * R/transform.R (stemDocument.PlainTextDocument): Use language
100            argument.
101    
102    2011-02-04  Ingo Feinerer  <feinerer@logic.at>
103    
104            * R/source.R: Store strings and connections instead of unevaluated
105            calls.
106    
107    2010-11-26  Ingo Feinerer  <feinerer@logic.at>
108    
109            * R/corpus.R (Corpus): Allow init and exit hooks for readers.
110    
111    2010-10-22  Ingo Feinerer  <feinerer@logic.at>
112    
113            * R/matrix.R (.TermDocumentMatrix): Make Weighting an attribute
114            (instead of a list element).
115    
116    2010-10-16  Ingo Feinerer  <feinerer@logic.at>
117    
118            * R/corpus.R (`[[.VCorpus`, `[[.PCorpus'): Access individual
119            documents by names (fallback to IDs if names are not set).
120    
121    2010-08-25  Ingo Feinerer  <feinerer@logic.at>
122    
123            * R/corpus.R (c.Corpus): When concatenating corpora, the argument
124            \code{recursive} now determines whether existing corpus meta data
125            is used.
126    
127    2010-08-06  Ingo Feinerer  <feinerer@logic.at>
128    
129            * R/transform.R: Removed convert_UTF_8(). Use enc2utf8() instead.
130    
131    2010-06-17  Ingo Feinerer  <feinerer@logic.at>
132    
133            * R/matrix.R (TermDocumentMatrix): If a dictionary is given do not
134            remove terms not occurring in the corpus anymore.
135    
136    2010-06-02  Ingo Feinerer  <feinerer@logic.at>
137    
138            * R/plot.R (Zipf_plot, Heaps_plot): Plotting functions for Zipf's
139            and Heaps' law.
140    
141    2010-05-18  Ingo Feinerer  <feinerer@logic.at>
142    
143            * R/corpus.R (Corpus, PCorpus): Use element names as IDs if
144            provided by a source.
145    
146    2010-04-09  Ingo Feinerer  <feinerer@logic.at>
147    
148            * R/source.R (.Source): Provide document names.
149    
150    2010-04-07  Ingo Feinerer  <feinerer@logic.at>
151    
152            * R/meta.R (`content_or_meta`): Utility function.
153    
154    2010-03-19  Ingo Feinerer  <feinerer@logic.at>
155    
156            * R/reader.R (readReut21578XML, readReut21578XMLasPlain): Extract
157            TOPICS, LEWISSPLIT, CGISPLIT, and OLDID meta tags.
158    
159    2010-03-03  Ingo Feinerer  <feinerer@logic.at>
160    
161            * R/weight.R (weightTfIdf): Added normalization option.
162    
163            * man/tm_tag_score.Rd: Add General Inquirer example for sentiment
164            analysis.
165    
166    2010-02-25  Ingo Feinerer  <feinerer@logic.at>
167    
168            * R/score.R (tm_tag_score): Compute a score from the number of
169            tags matching in a document.
170    
171    2010-02-18  Ingo Feinerer  <feinerer@logic.at>
172    
173            * R/complete.R (stemCompletion): New completion heuristics.
174    
175    2010-02-17  Ingo Feinerer  <feinerer@logic.at>
176    
177            * R/plot.R (plot.TermDocumentMatrix): Memory improvements.
178    
179    2010-02-06  Ingo Feinerer  <feinerer@logic.at>
180    
181            * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
182            setOldClass(c(..., "list")) works.
183    
184    2010-01-22  Ingo Feinerer  <feinerer@logic.at>
185    
186            * R/transform.R (stemDocument.character): In case input is a
187            simple character just delegate to the default Snowball stemmer.
188    
189    2010-01-15  Ingo Feinerer  <feinerer@logic.at>
190    
191            * R/reader.R (readReut21578XML, readRCV1): Extract more meta
192            data.
193    
194    2010-01-12  Ingo Feinerer  <feinerer@logic.at>
195    
196            * R/doc.R (`Content<-`): Be careful with names attribute.
197    
198    2010-01-07  Stefan Theussl  <stefan.theussl@wu.ac.at>
199    
200            * R/source.R (DirSource): Improved implementation especially when
201            handling many (> 1M) files.
202    
203    2009-12-22  Ingo Feinerer  <feinerer@logic.at>
204    
205            * R/source.R (getElem.URISource): Use encoding argument.
206    
207    2009-12-11  Ingo Feinerer  <feinerer@logic.at>
208    
209            * R/doc.R (setOldClass): Register S3 document classes to be
210            recognized by S4 methods.
211    
212    2009-11-25  Ingo Feinerer  <feinerer@logic.at>
213    
214            * R/matrix.R (termFreq): Add option to remove punctuation
215            characters.
216    
217    2009-11-19  Ingo Feinerer  <feinerer@logic.at>
218    
219            * R/matrix.R (c.TermDocumentMatrix): Added combine method for
220            merging multiple term-document matrices.
221    
222    2009-11-17  Ingo Feinerer  <feinerer@logic.at>
223    
224            * R/corpus.R (setOldClass): Register S3 corpus classes to be
225            recognized by S4 methods.
226    
227            * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
228            that CRAN Mac OS X builds do not fail any longer.
229    
230    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
231    
232            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
233            of RWeka:AlphabeticTokenizer() as default.
234    
235    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
236    
237            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
238            caused words at the beginning or the end of a line not to be removed. Do
239            not delete whitespace anymore.
240    
241    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
242    
243            * R/source.R (DirSource): Default to working directory if no path
244            is specified.
245    
246    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
247    
248            * R/source.R (DirSource): Stop on empty directories.
249    
250    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
251    
252            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
253            named documents.
254    
255    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
256    
257            * R/transform.R (removeWords): Improve regular expressions.
258    
259    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
260    
261            * R/meta.R (DublinCore): Allow lower case tags.
262    
263    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
264    
265            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
266            instead of x$children.
267    
268    2009-09-15  Ingo Feinerer  <feinerer@logic.at>
269    
270            * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
271    
272    2009-09-06  Ingo Feinerer  <feinerer@logic.at>
273    
274            * R/: Use S3 instead of S4 class system.
275    
276    2009-08-11  Ingo Feinerer  <feinerer@logic.at>
277    
278            * R/reader.R (readMail): Moved to tm.plugin.mail package.
279    
280    2009-07-04  Ingo Feinerer  <feinerer@logic.at>
281    
282            * R/reader.R (readNewsgroup): Rename to readMail as newsgroup
283            postings are basically e-mails with some extra headers.
284    
285    2009-07-03  Ingo Feinerer  <feinerer@logic.at>
286    
287            * R/transform.R: Move convertMboxEml, removeCitation,
288            removeMultipart, and removeSignature to the tm.plugin.mail package
289            since they are mainly utility functions (for handling e-mails) and
290            not very framework specific.
291    
292    2009-06-28  Ingo Feinerer  <feinerer@logic.at>
293    
294            * man/: Fix documentation.
295    
296    2009-06-26  Ingo Feinerer  <feinerer@logic.at>
297    
298            * R/reader.R (readReut21578XMLasPlain): New reader which returns a
299            plain text document instead of an XML document for texts of the
300            Reuters-21578 dataset.
301    
302            * R/sparse.R: Removed since the slam package is now available on
303            CRAN.
304    
305            * DESCRIPTION (Depends): Add slam package.
306    
307    2009-06-17  Ingo Feinerer  <feinerer@logic.at>
308    
309            * R/transform.R (stemDoc): Fix character(0) handling.
310    
311    2009-06-12  Ingo Feinerer  <feinerer@logic.at>
312    
313            * R/doc.R (show): Pretty print.
314    
315    2009-05-27  Ingo Feinerer  <feinerer@logic.at>
316    
317            * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
318            gracefully.
319    
320    2009-05-13  Ingo Feinerer  <feinerer@logic.at>
321    
322            * R/corpus.R: Make corpus virtual. Implement corpus with standard
323            and permanent storage semantics.
324    
325            * DESCRIPTION: New major release. A *lot* of improvements.
326    
327    2009-05-04   Ingo Feinerer <feinerer@logic.at>
328    
329            * NAMESPACE: Export some simple_triplet_matrix functions.
330    
331    2009-04-28   Ingo Feinerer <feinerer@logic.at>
332    
333            * R/weight.R: Adapt tf-idf to new matrix format.
334    
335    2009-04-27  Ingo Feinerer  <feinerer@logic.at>
336    
337            * R/matrix.R: Create two distinct classes for term-document and
338            document-term matrices.
339    
340    2009-04-26  Ingo Feinerer  <feinerer@logic.at>
341    
342            * R/termdocmatrix.R: No longer use Matrix package. This reduces
343            package start-up time significantly.
344    
345    2009-04-11  Ingo Feinerer  <feinerer@logic.at>
346    
347            * inst/doc/tm.Rnw: Fix code/documentation mismatch.
348    
349    2009-04-04  Ingo Feinerer  <feinerer@logic.at>
350    
351            * R/transform.R (tmReduce): Combine multiple maps into one
352            transformation.
353    
354    2009-04-03  Ingo Feinerer  <feinerer@logic.at>
355    
356            * R/weight.R: Remove weightLogical since it does not return a
357            dgCMatrix.
358    
359            * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
360            or TermDocumentMatrix instead.
361    
362    2009-03-28  Ingo Feinerer  <feinerer@logic.at>
363    
364            * inst/doc/extensions.Rnw: Finished vignette.
365    
366    2009-03-27  Ingo Feinerer  <feinerer@logic.at>
367    
368            * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
369            DocumentTermMatrix representations.
370    
371    2009-03-23  Ingo Feinerer  <feinerer@logic.at>
372    
373            * R/reader.R (readXML): New reader for arbitrary XML files.
374    
375    2009-03-22  Ingo Feinerer  <feinerer@logic.at>
376    
377            * R/source.R (CSVSource): Defunct (use DataframeSource instead).
378            (XMLSource): New XMLSource class for arbitrary XML files.
379            (Source): New slot Vectorized.
380    
381    2009-03-21  Ingo Feinerer  <feinerer@logic.at>
382    
383            * R/reader.R (readTabular): Experimental reader for tabular data
384            structures which can be customized via user-defined mappings.
385    
386            * R/reader.R: Always use UTC time zone.
387    
388            * R/AAA.R (.onLoad): No longer try to start a MPI cluster.
389    
390    2009-03-20  Ingo Feinerer  <feinerer@logic.at>
391    
392            * R/reader.R (readDOC): Options can be passed over to antiword.
393    
394            * R/reader.R (readPDF): Options can be passed over to pdfinfo and
395            pdftotext.
396    
397    2009-03-10  Ingo Feinerer  <feinerer@logic.at>
398    
399            * R/source.R (DirSource): Add pattern and ignore.case arguments
400            which are internally passed over to list.files().
401    
402    2009-03-02  Ingo Feinerer  <feinerer@logic.at>
403    
404            * inst/doc/tm.Rnw: Suppress pointless loading message.
405    
406    2009-01-29  Ingo Feinerer  <feinerer@logic.at>
407    
408            * DESCRIPTION: Speed up package loading (via moving packages not
409            strictly necessary for normal operation to Suggests instead of
410            Depends).
411    
412    2009-01-08  Ingo Feinerer  <feinerer@logic.at>
413    
414            * R/reader.R (readNewsgroup): The date format is now configurable.
415    
416    2008-12-20  Ingo Feinerer  <feinerer@logic.at>
417    
418            * R/preprocess.R (convertMboxEml): Fix off-by-one error.
419    
420    2008-12-16  Ingo Feinerer  <feinerer@logic.at>
421    
422            * R/termdocmatrix.R (TermDocMatrix): Sort row indices.
423    
424    2008-12-06  Ingo Feinerer  <feinerer@logic.at>
425    
426            * R/source.R (DataframeSource): New source class for data frames.
427    
428            * R/source.R: Fixed non-standard call evaluation.
429    
430    2008-11-29  Ingo Feinerer  <feinerer@logic.at>
431    
432            * R/source.R (URISource): New source class for a single document.
433    
434    2008-11-27  Ingo Feinerer  <feinerer@logic.at>
435    
436            * R/source.R: Refactoring.
437    
438    2008-11-25  Ingo Feinerer  <feinerer@logic.at>
439    
440            * R/AAA.R (.onLoad, .Last): Use tryCatch() to handle misconfigured
441            Rmpi installations more gracefully.
442    
443    2008-11-08  Ingo Feinerer  <feinerer@logic.at>
444    
445            * R/source.R (Source): Add Length slot.
446    
447    2008-11-06  Ingo Feinerer  <feinerer@logic.at>
448    
449            * R/AAA.R: Unify duplicated .onLoad function.
450    
451    2008-11-03  Ingo Feinerer  <feinerer@logic.at>
452    
453            * DESCRIPTION (Suggests): Added Rmpi.
454    
455    2008-11-02  Ingo Feinerer  <feinerer@logic.at>
456    
457            * R/source.R (getElem): Fix 'no visible binding' warning.
458    
459            * man/WeightFunction.Rd: Fix signature.
460    
461    2008-08-03  Ingo Feinerer  <feinerer@logic.at>
462    
463            * R/weight.R: Introduce name abbreviations for weighting functions.
464    
465    2008-07-24  Ingo Feinerer  <feinerer@logic.at>
466    
467            * R/AAA.R (.onLoad, .Last): Start and stop MPI cluster.
468    
469            * R/cluster.R: Provide convenience functions for using a MPI
470            cluster.
471    
472            * R/termdocmatrix.R (TermDocMatrix): Use MPI cluster if
473            available.
474    
475            * R/textdoccol.R (tmIndex, tmFilter, tmMap): Use MPI cluster if
476            available.
477    
478    2008-07-17  Ingo Feinerer  <feinerer@logic.at>
479    
480            * R/textdoccol.R (lapply): Removed debug print out.
481    
482    2008-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
483    
484            * R/reader.R (readRCV1): Improved meta data extraction from
485            Reuters Corpus Volume 1 documents.
486    
487    2008-05-25  Ingo Feinerer  <h0125130@wu-wien.ac.at>
488    
489            * R/transform.R: Ensure that all mappings preserve multiline
490            structures.
491    
492    2008-05-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
493    
494            * R/filter.R: Every filter has now an attribute indicating whether
495            it sould be applied to document level (doclevel).
496    
497            * R/textdoccol.R (tmFilter): Set searchFullText as new default
498            filter.
499    
500    2008-04-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
501    
502            * R/transform.R (replacePatterns): Replaced removeWords by
503            replacePatterns. Suggested by Christian Buchta.
504    
505            * R/textdoccol.R (inspect): Improved formatting.
506    
507    2008-04-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
508    
509            * inst/CITATION: Updated JSS article information.
510    
511            * R/textdoccol.R (setAs): Added coerce method from list to
512            corpus.
513    
514            * R/meta.R (meta): Improved meta data handling.
515    
516    2008-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
517    
518            * R/textdoccol.R (materialize, tmMap): Improvements suggested by
519            Christian Buchta.
520    
521            * inst/CITATION: Added template to include JSS article reference.
522    
523    2008-03-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
524    
525            * R/textdoccol.R (tmMap): Introduced lazy mapping.
526    
527            * R/source.R: Added VectorSource.
528    
529    2008-02-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
530    
531            * man/: Language codes should be in ISO 639-1 format.
532    
533            * R/textdoccol.R (asPlain): Preserve local meta data.
534    
535    2008-01-31  Ingo Feinerer  <h0125130@wu-wien.ac.at>
536    
537            * R/textdoccol.R (writeCorpus): Function for writing a corpus
538            containing plain text documents to disk.
539    
540    2008-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
541    
542            * R/termdocmatrix.R (TermDocMatrix): Ensure that dimnames are
543            always set correctly.
544    
545            * R/textdoccol.R: Set load = TRUE as default for load on demand
546            since in most cases this is the wanted behaviour.
547    
548    2008-01-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
549    
550            * R/: Renamed TextDocCol to Corpus, and Corpus to Content.
551    
552            * DESCRIPTION: Updated Version to 0.3 due to core name changes.
553    
554    2008-01-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
555    
556            * R/meta.R (meta): New function for consistent access to meta data
557            of document collections, repositories, and texts.
558    
559    2008-01-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
560    
561            * R/: Better support for encodings.
562    
563    2008-01-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
564    
565            * R/textdoccol.R (TextDocCol): Fixed bug regarding default reader
566            selection when no reader argument is given.
567    
568    2008-01-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
569    
570            * R/source.R (CSVSource): Now uses read.csv instead of scan
571            internally.
572    
573    2008-01-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
574    
575            * R/reader.R (getReaders): Returns available reader functions.
576    
577            * R/termdocmatrix.R (TermDocMatrix): Set new modular constructor
578            as default.
579    
580    2007-12-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
581    
582            * R/stopwords.R (stopwords): Shortened code, removed codetools
583            variable warnings.
584    
585            * man/: Documentation for showMeta, added an example for tmMap.
586    
587            * inst/doc/tm.Rnw: Updated vignette, comments on MS word reader,
588            some minor typos fixed.
589    
590    2007-12-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
591    
592            * R/aobjects.R (showMeta): Added method for pretty printing a
593            text document's meta data.
594    
595    2007-11-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
596    
597            * R/textdoccol.R (TextDocCol): Better handling of empty
598            arguments.
599    
600            * NAMESPACE: Exported readDOC.
601    
602            * man/completeStems.Rd: Added an example.
603    
604    2007-11-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
605    
606            * R/stopwords.R (stopwords): Look up .dat files at every
607            call. Allows users to modify stopword .dat files interactively.
608    
609    2007-11-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
610    
611            * R/termdocmatrix.R (termFreq): Correct processing of empty
612            documents.
613    
614    2007-10-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
615    
616            * man/: Updated documentation.
617    
618    2007-10-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
619    
620            * R/complete.R (completeStems): Completes (heuristically) word
621            stems.
622    
623            * R/termdocmatrix.R (TermDocMatrix2): New modular
624            constructor.
625    
626            * NAMESPACE: Exported termFreq.
627    
628    2007-10-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
629    
630            * R/reader.R (readDOC): Added MS Word reader (using antiword).
631    
632    2007-10-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
633    
634            * R/weight.R: Weighting functions for TermDocMatrix.
635    
636    2007-10-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
637    
638            * R/termdocmatrix.R (dimnames, colnames, rownames): Wrapper
639            functions for accessing dimension, column, and row names.
640    
641            * R/plot.R (plot.TermDocMatrix): Plot correlations between terms.
642    
643    2007-09-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
644    
645            * man/removePunctuation.Rd: Added documentation. Function also exported to NAMESPACE.
646    
647    2007-08-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
648    
649            * R/fungen.R: Use S4 class for function generators instead of S3 attributes.
650    
651    2007-07-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
652    
653            * R/reader.R (readPDF): Removed manual checks for pdftotext and
654            pdfinfo. The system call gives a warning anyway.
655    
656    2007-07-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
657    
658            * R/textdoccol.R (asPlain): Conversion from
659            StructuredTextDocuments to PlainTextDocuments.
660    
661    2007-07-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
662    
663            * R/termdocmatrix.R: Added convenience methods ("[", nrow, ncol)
664            for accessing term-document matrices.
665    
666            * inst/doc/tm.Rnw: readPDF is only called if pdftotext and pdfinfo
667            are installed.
668    
669    2007-07-17  Ingo Feinerer  <h0125130@wu-wien.ac.at>
670    
671            * R/termdocmatrix.R (TermDocMatrix): Improved efficiency. Kudos to
672            Christian Buchta.
673    
674    2007-07-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
675    
676            * inst/doc/tm.Rnw: Update vignette (readPDF, readHTML, preprocessReut21578XML).
677    
678    2007-07-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
679    
680            * R/reader.R (readHTML): Added very simple HTML reader to obtain StructuredTextDocuments.
681    
682            * R/reader.R (readPDF): Added PDF reader.
683    
684    2007-07-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
685    
686            * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
687    
688            * inst/stopwords/english.dat: Added the term "yes" to stopwords.
689    
690            * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
691    
692            * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
693    
694    2007-07-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
695    
696            * R/distmeasure.R (dissimilarity): Replaced dists call from
697            package cba by new dist call from package proxy.
698    
699    2007-07-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
700    
701            * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
702    
703    2007-06-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
704    
705            * R/termdocmatrix.R: require() uses the quietly option to suppress
706            loading messages.
707    
708    2007-06-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
709    
710            * R/dictionary.R: Added dictionary support.
711    
712    2007-06-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
713    
714            * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
715            documents. This simplifies some functions, e.g., asPlain.
716    
717    2007-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
718    
719            * inst/doc/tm.Rnw: Fixed some typos in vignette.
720    
721    2007-06-03  Ingo Feinerer  <h0125130@wu-wien.ac.at>
722    
723            * R/textdoccol.R (replaceWords): Added method to replace a set of
724            words by a single word. Useful for synonyms.
725    
726    2007-05-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
727    
728            * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
729    
730    2007-05-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
731    
732            * R/termdocmatrix.R (textvector): Small fix for dealing with empty
733            vectors. Thanks to Ariel Maguyon for his error report.
734            (removeSparseTerms): New function to remove columns from a
735            term-document matrix exceeding a sparse factor.
736    
737    2007-05-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
738    
739            * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
740    
741    2007-05-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
742    
743            * man/sFilter.Rd: Corrected documentation on statement format (use
744            '==' instead of '=').
745    
746    2007-05-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
747    
748            * R/aobjects.R (StructuredTextDocument): Inherits from
749            TextDocument.
750    
751    2007-05-04  Ingo Feinerer  <h0125130@wu-wien.ac.at>
752    
753            * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
754            on sparse matrices as proposed by Martin Maechler.
755    
756    2007-04-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
757    
758            * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
759            \pkg{filehash} version makes them deprecated.
760    
761    2007-04-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
762    
763            * R/termdocmatrix.R (textvector): Stemming is now performed before
764            erasing stopwords.
765            (weightMatrix): Adapted to handle sparse matrices.
766            (TermDocMatrix): Sparse matrix is now efficiently built by
767            direct stepwise insertion of row values into it.
768    
769    2007-04-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
770    
771            * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
772            due to ongoing problems. For our purposes the latter is as useful
773            as the replaced package.
774    
775    2007-04-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>
776    
777            * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.
778    
779            * man/TermDocMatrix.Rd: Remove deprecated \code{language} argument.
780    
781    2007-04-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
782    
783            * R/resolve.R (resolveISOCode): Added ISO 639-1 codes for
784            languages with available stopwords.
785    
786    2007-04-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
787    
788            * inst/doc/tm.Rnw: Minor corrections in the vignette.
789    
790    2007-04-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
791    
792            * DESCRIPTION: Update to version 0.2, since a lot of new features
793            have been integrated.
794    
795            * inst/stopwords: Updated existing stopwords and added stopwords
796            for various other languages.
797    
798    2007-04-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
799    
800            * man/: Updated documentation.
801    
802            * Work/testDb.R: Script to test database stuff.
803    
804            * R/: Fixed various database related bugs. Seems to be rather
805            useable now, i.e., consider as alpha status for now.
806    
807    2007-04-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
808    
809            * R/: Fixed some bugs related to database support.
810    
811    2007-04-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
812    
813            * man/: Added a lot of examples to the manuals.
814    
815    2007-04-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
816    
817            * man/: Updated parts of the documentation.
818    
819            * R/textdoccol.R (asPlain): Added conversion from newsgroup
820            documents to plain text documents.
821    
822    2007-04-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
823    
824            * R/textdoccol.R: Finished experimental database support. Not yet
825            intensively tested.
826    
827            * R/source.R: Now each source has a default reader.
828    
829            * R/reader.R: \code{FunctionGenerator} is now an attribute, not a
830            class anymore.
831    
832            * R/plaintextdoc.R: Custom show method for plain text documents.
833    
834            * R/aobjects.R: Added a class for structured text documents.
835    
836            * R/reader.R: Replaced remaining \code{parser} occurrences with
837            \code{reader}.
838    
839            * R/textdoccol.R (summary): Indent tags.
840    
841            * R/textdoccol.R (removePunctuation): Transform method to remove
842            punctuation marks.
843    
844    2007-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
845    
846            * R/textdoccol.R (sFilter): Simplified sFilter significantly by
847            using prescindMeta().
848    
849    2007-03-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
850    
851            * R/textdoccol.R: Improved database support.
852    
853    2007-03-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
854    
855            * R/termdocmatrix.R (TermDocMatrix): Uses sparse matrices.
856    
857            * R/resolve.R (resolveISOcode): Extracts the language from a ISO
858            language code.
859    
860            * R/textdoccol.R (TextDocCol): Refactored several parser arguments
861            into parserControl argument.
862    
863            * R/aobjects.R (TextDocument): Introduced the "Language" slot.
864    
865    2007-03-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
866    
867            * Work/tmDataSetup.R: The datasets acq and crude can now be
868            created on the fly.
869    
870            * R/stopwords.R: Introduced a function returning the stopwords for
871            a given language (English, German and French at the moment)
872    
873            * R/textdoccol.R (stemDoc): Stemming uses Rstem if available,
874            otherwise falls back to Snowball package.
875    
876  2007-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>  2007-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
877    
878          * man/dissimilarity-methods.Rd: Make clear that any method offered          * man/dissimilarity-methods.Rd: Make clear that any method offered

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