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trunk/tm/ChangeLog revision 711, Tue Jan 30 13:03:55 2007 UTC pkg/ChangeLog revision 1193, Thu Oct 4 07:44:21 2012 UTC
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1    2012-10-03 Ingo Feinerer  <feinerer@logic.at>
2    
3            * R/weight.R (weightTfIdf, weightSMART): Gracefully handle empty
4            columns and rows (avoids blow-up due to NaN values). Suggested by Jaap
5            Frölich.
6    
7    2012-07-27 Ingo Feinerer  <feinerer@logic.at>
8    
9            * R/transform.R (removeWords): Allow longer stopword lists.
10    
11    2012-01-31  Ingo Feinerer  <feinerer@logic.at>
12    
13            * R/reader.R (readXML): Readers can now set the document language
14            themselves.
15    
16    2012-01-14  Ingo Feinerer  <feinerer@logic.at>
17    
18            * R/source.R (XMLSource, getElem.XMLSource): Simplifications as
19            proposed by Milan Bouchet-Valat.
20    
21    2012-01-11  Ingo Feinerer  <feinerer@logic.at>
22    
23            * R/matrix.R (termFreq): Fix processing of user provided
24            stopwords. Reported by Bettina Grün.
25    
26    2011-12-23  Ingo Feinerer  <feinerer@logic.at>
27    
28            * R/matrix.R (termFreq): Fix invalid handling of
29            control$wordLengths[1]. Reported by Steven C. Bagley.
30    
31    2011-12-17  Ingo Feinerer  <feinerer@logic.at>
32    
33            * DESCRIPTION (Version): Prepare for CRAN Christmas release.
34    
35    2011-12-12  Ingo Feinerer  <feinerer@logic.at>
36    
37            * R/utils.R (map_IETF_Snowball): Map empty input to "porter".
38    
39    2011-12-07  Ingo Feinerer  <feinerer@logic.at>
40    
41            * R/transform.R (removePunctuation): Add option to preserve
42            intra-word dashes.
43    
44    2011-12-06  Ingo Feinerer  <feinerer@logic.at>
45    
46            * R/matrix.R (termFreq): Allow reordering of control option
47            processing.
48    
49    2011-11-17  Ingo Feinerer  <feinerer@logic.at>
50    
51            * R/reader.R (readPDF): Use tools:::pdf_info() instead of external
52            pdfinfo tool.
53    
54            * inst/stopwords/SMART.dat: Add SMART information retrieval system
55            stopwords (which are also used by the MC toolkit).
56    
57            * R/matrix (termFreq): Allow local option \code{bounds$local} to
58            restrict how often a term may appear in each document (generalizes
59            \code{minDocFreq}). Similarly the local option \code{wordLenghts}
60            for word length bounds (generalizes \code{minWordLength}).
61    
62            * R/matrix.R (TermDocumentMatrix.VCorpus): New global option
63            \code{bounds$global} for restricting how often a term is allowed
64            to appear in different documents.
65    
66            * R/matrix.R (TermDocumentMatrix.VCorpus): Distinguish between
67            local options delegated internally to termFreq() and global
68            options which are processed by the term-document matrix
69            constructor itself.
70    
71    2011-11-15  Ingo Feinerer  <feinerer@logic.at>
72    
73            * man/getTokenizers.Rd: Document getTokenizers().
74    
75            * man/tokenizer.Rd: Document MC_tokenizer() and scan_tokenizer().
76    
77    2011-11-04  Ingo Feinerer  <feinerer@logic.at>
78    
79            * man/matrix.Rd: Document as.TermDocumentMatrix.term_frequency.
80    
81            * man/combine.Rd: Document c.term_frequency().
82    
83    2011-10-11  Ingo Feinerer  <feinerer@logic.at>
84    
85            * R/meta.R (`meta<-.Corpus`): Assume that the replacement value
86            can be accessed via '[' and not '[['.
87    
88    2011-08-24  Ingo Feinerer  <feinerer@logic.at>
89    
90            * R/stopwords.R (stopwords): Raise an error if no stopwords are
91            available for requested language. Suggested by Derek M Jones.
92    
93    2011-05-27  Ingo Feinerer  <feinerer@logic.at>
94    
95            * R/weight.R (weightSMART): Implement Cosine and pivoted unique
96            normalization.
97    
98    2011-02-17  Ingo Feinerer  <feinerer@logic.at>
99    
100            * R/transform.R (stemDocument.PlainTextDocument): Use language
101            argument.
102    
103    2011-02-04  Ingo Feinerer  <feinerer@logic.at>
104    
105            * R/source.R: Store strings and connections instead of unevaluated
106            calls.
107    
108    2010-11-26  Ingo Feinerer  <feinerer@logic.at>
109    
110            * R/corpus.R (Corpus): Allow init and exit hooks for readers.
111    
112    2010-10-22  Ingo Feinerer  <feinerer@logic.at>
113    
114            * R/matrix.R (.TermDocumentMatrix): Make Weighting an attribute
115            (instead of a list element).
116    
117    2010-10-16  Ingo Feinerer  <feinerer@logic.at>
118    
119            * R/corpus.R (`[[.VCorpus`, `[[.PCorpus'): Access individual
120            documents by names (fallback to IDs if names are not set).
121    
122    2010-08-25  Ingo Feinerer  <feinerer@logic.at>
123    
124            * R/corpus.R (c.Corpus): When concatenating corpora, the argument
125            \code{recursive} now determines whether existing corpus meta data
126            is used.
127    
128    2010-08-06  Ingo Feinerer  <feinerer@logic.at>
129    
130            * R/transform.R: Removed convert_UTF_8(). Use enc2utf8() instead.
131    
132    2010-06-17  Ingo Feinerer  <feinerer@logic.at>
133    
134            * R/matrix.R (TermDocumentMatrix): If a dictionary is given do not
135            remove terms not occurring in the corpus anymore.
136    
137    2010-06-02  Ingo Feinerer  <feinerer@logic.at>
138    
139            * R/plot.R (Zipf_plot, Heaps_plot): Plotting functions for Zipf's
140            and Heaps' law.
141    
142    2010-05-18  Ingo Feinerer  <feinerer@logic.at>
143    
144            * R/corpus.R (Corpus, PCorpus): Use element names as IDs if
145            provided by a source.
146    
147    2010-04-09  Ingo Feinerer  <feinerer@logic.at>
148    
149            * R/source.R (.Source): Provide document names.
150    
151    2010-04-07  Ingo Feinerer  <feinerer@logic.at>
152    
153            * R/meta.R (`content_or_meta`): Utility function.
154    
155    2010-03-19  Ingo Feinerer  <feinerer@logic.at>
156    
157            * R/reader.R (readReut21578XML, readReut21578XMLasPlain): Extract
158            TOPICS, LEWISSPLIT, CGISPLIT, and OLDID meta tags.
159    
160    2010-03-03  Ingo Feinerer  <feinerer@logic.at>
161    
162            * R/weight.R (weightTfIdf): Added normalization option.
163    
164            * man/tm_tag_score.Rd: Add General Inquirer example for sentiment
165            analysis.
166    
167    2010-02-25  Ingo Feinerer  <feinerer@logic.at>
168    
169            * R/score.R (tm_tag_score): Compute a score from the number of
170            tags matching in a document.
171    
172    2010-02-18  Ingo Feinerer  <feinerer@logic.at>
173    
174            * R/complete.R (stemCompletion): New completion heuristics.
175    
176    2010-02-17  Ingo Feinerer  <feinerer@logic.at>
177    
178            * R/plot.R (plot.TermDocumentMatrix): Memory improvements.
179    
180    2010-02-06  Ingo Feinerer  <feinerer@logic.at>
181    
182            * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
183            setOldClass(c(..., "list")) works.
184    
185    2010-01-22  Ingo Feinerer  <feinerer@logic.at>
186    
187            * R/transform.R (stemDocument.character): In case input is a
188            simple character just delegate to the default Snowball stemmer.
189    
190    2010-01-15  Ingo Feinerer  <feinerer@logic.at>
191    
192            * R/reader.R (readReut21578XML, readRCV1): Extract more meta
193            data.
194    
195    2010-01-12  Ingo Feinerer  <feinerer@logic.at>
196    
197            * R/doc.R (`Content<-`): Be careful with names attribute.
198    
199    2010-01-07  Stefan Theussl  <stefan.theussl@wu.ac.at>
200    
201            * R/source.R (DirSource): Improved implementation especially when
202            handling many (> 1M) files.
203    
204    2009-12-22  Ingo Feinerer  <feinerer@logic.at>
205    
206            * R/source.R (getElem.URISource): Use encoding argument.
207    
208    2009-12-11  Ingo Feinerer  <feinerer@logic.at>
209    
210            * R/doc.R (setOldClass): Register S3 document classes to be
211            recognized by S4 methods.
212    
213    2009-11-25  Ingo Feinerer  <feinerer@logic.at>
214    
215            * R/matrix.R (termFreq): Add option to remove punctuation
216            characters.
217    
218    2009-11-19  Ingo Feinerer  <feinerer@logic.at>
219    
220            * R/matrix.R (c.TermDocumentMatrix): Added combine method for
221            merging multiple term-document matrices.
222    
223    2009-11-17  Ingo Feinerer  <feinerer@logic.at>
224    
225            * R/corpus.R (setOldClass): Register S3 corpus classes to be
226            recognized by S4 methods.
227    
228            * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
229            that CRAN Mac OS X builds do not fail any longer.
230    
231    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
232    
233            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
234            of RWeka:AlphabeticTokenizer() as default.
235    
236    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
237    
238            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
239            caused words at the beginning or the end of a line not to be removed. Do
240            not delete whitespace anymore.
241    
242    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
243    
244            * R/source.R (DirSource): Default to working directory if no path
245            is specified.
246    
247    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
248    
249            * R/source.R (DirSource): Stop on empty directories.
250    
251    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
252    
253            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
254            named documents.
255    
256    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
257    
258            * R/transform.R (removeWords): Improve regular expressions.
259    
260    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
261    
262            * R/meta.R (DublinCore): Allow lower case tags.
263    
264    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
265    
266            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
267            instead of x$children.
268    
269    2009-09-15  Ingo Feinerer  <feinerer@logic.at>
270    
271            * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
272    
273    2009-09-06  Ingo Feinerer  <feinerer@logic.at>
274    
275            * R/: Use S3 instead of S4 class system.
276    
277    2009-08-11  Ingo Feinerer  <feinerer@logic.at>
278    
279            * R/reader.R (readMail): Moved to tm.plugin.mail package.
280    
281    2009-07-04  Ingo Feinerer  <feinerer@logic.at>
282    
283            * R/reader.R (readNewsgroup): Rename to readMail as newsgroup
284            postings are basically e-mails with some extra headers.
285    
286    2009-07-03  Ingo Feinerer  <feinerer@logic.at>
287    
288            * R/transform.R: Move convertMboxEml, removeCitation,
289            removeMultipart, and removeSignature to the tm.plugin.mail package
290            since they are mainly utility functions (for handling e-mails) and
291            not very framework specific.
292    
293    2009-06-28  Ingo Feinerer  <feinerer@logic.at>
294    
295            * man/: Fix documentation.
296    
297    2009-06-26  Ingo Feinerer  <feinerer@logic.at>
298    
299            * R/reader.R (readReut21578XMLasPlain): New reader which returns a
300            plain text document instead of an XML document for texts of the
301            Reuters-21578 dataset.
302    
303            * R/sparse.R: Removed since the slam package is now available on
304            CRAN.
305    
306            * DESCRIPTION (Depends): Add slam package.
307    
308    2009-06-17  Ingo Feinerer  <feinerer@logic.at>
309    
310            * R/transform.R (stemDoc): Fix character(0) handling.
311    
312    2009-06-12  Ingo Feinerer  <feinerer@logic.at>
313    
314            * R/doc.R (show): Pretty print.
315    
316    2009-05-27  Ingo Feinerer  <feinerer@logic.at>
317    
318            * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
319            gracefully.
320    
321    2009-05-13  Ingo Feinerer  <feinerer@logic.at>
322    
323            * R/corpus.R: Make corpus virtual. Implement corpus with standard
324            and permanent storage semantics.
325    
326            * DESCRIPTION: New major release. A *lot* of improvements.
327    
328    2009-05-04   Ingo Feinerer <feinerer@logic.at>
329    
330            * NAMESPACE: Export some simple_triplet_matrix functions.
331    
332    2009-04-28   Ingo Feinerer <feinerer@logic.at>
333    
334            * R/weight.R: Adapt tf-idf to new matrix format.
335    
336    2009-04-27  Ingo Feinerer  <feinerer@logic.at>
337    
338            * R/matrix.R: Create two distinct classes for term-document and
339            document-term matrices.
340    
341    2009-04-26  Ingo Feinerer  <feinerer@logic.at>
342    
343            * R/termdocmatrix.R: No longer use Matrix package. This reduces
344            package start-up time significantly.
345    
346    2009-04-11  Ingo Feinerer  <feinerer@logic.at>
347    
348            * inst/doc/tm.Rnw: Fix code/documentation mismatch.
349    
350    2009-04-04  Ingo Feinerer  <feinerer@logic.at>
351    
352            * R/transform.R (tmReduce): Combine multiple maps into one
353            transformation.
354    
355    2009-04-03  Ingo Feinerer  <feinerer@logic.at>
356    
357            * R/weight.R: Remove weightLogical since it does not return a
358            dgCMatrix.
359    
360            * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
361            or TermDocumentMatrix instead.
362    
363    2009-03-28  Ingo Feinerer  <feinerer@logic.at>
364    
365            * inst/doc/extensions.Rnw: Finished vignette.
366    
367    2009-03-27  Ingo Feinerer  <feinerer@logic.at>
368    
369            * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
370            DocumentTermMatrix representations.
371    
372    2009-03-23  Ingo Feinerer  <feinerer@logic.at>
373    
374            * R/reader.R (readXML): New reader for arbitrary XML files.
375    
376    2009-03-22  Ingo Feinerer  <feinerer@logic.at>
377    
378            * R/source.R (CSVSource): Defunct (use DataframeSource instead).
379            (XMLSource): New XMLSource class for arbitrary XML files.
380            (Source): New slot Vectorized.
381    
382    2009-03-21  Ingo Feinerer  <feinerer@logic.at>
383    
384            * R/reader.R (readTabular): Experimental reader for tabular data
385            structures which can be customized via user-defined mappings.
386    
387            * R/reader.R: Always use UTC time zone.
388    
389            * R/AAA.R (.onLoad): No longer try to start a MPI cluster.
390    
391    2009-03-20  Ingo Feinerer  <feinerer@logic.at>
392    
393            * R/reader.R (readDOC): Options can be passed over to antiword.
394    
395            * R/reader.R (readPDF): Options can be passed over to pdfinfo and
396            pdftotext.
397    
398    2009-03-10  Ingo Feinerer  <feinerer@logic.at>
399    
400            * R/source.R (DirSource): Add pattern and ignore.case arguments
401            which are internally passed over to list.files().
402    
403    2009-03-02  Ingo Feinerer  <feinerer@logic.at>
404    
405            * inst/doc/tm.Rnw: Suppress pointless loading message.
406    
407    2009-01-29  Ingo Feinerer  <feinerer@logic.at>
408    
409            * DESCRIPTION: Speed up package loading (via moving packages not
410            strictly necessary for normal operation to Suggests instead of
411            Depends).
412    
413    2009-01-08  Ingo Feinerer  <feinerer@logic.at>
414    
415            * R/reader.R (readNewsgroup): The date format is now configurable.
416    
417    2008-12-20  Ingo Feinerer  <feinerer@logic.at>
418    
419            * R/preprocess.R (convertMboxEml): Fix off-by-one error.
420    
421    2008-12-16  Ingo Feinerer  <feinerer@logic.at>
422    
423            * R/termdocmatrix.R (TermDocMatrix): Sort row indices.
424    
425    2008-12-06  Ingo Feinerer  <feinerer@logic.at>
426    
427            * R/source.R (DataframeSource): New source class for data frames.
428    
429            * R/source.R: Fixed non-standard call evaluation.
430    
431    2008-11-29  Ingo Feinerer  <feinerer@logic.at>
432    
433            * R/source.R (URISource): New source class for a single document.
434    
435    2008-11-27  Ingo Feinerer  <feinerer@logic.at>
436    
437            * R/source.R: Refactoring.
438    
439    2008-11-25  Ingo Feinerer  <feinerer@logic.at>
440    
441            * R/AAA.R (.onLoad, .Last): Use tryCatch() to handle misconfigured
442            Rmpi installations more gracefully.
443    
444    2008-11-08  Ingo Feinerer  <feinerer@logic.at>
445    
446            * R/source.R (Source): Add Length slot.
447    
448    2008-11-06  Ingo Feinerer  <feinerer@logic.at>
449    
450            * R/AAA.R: Unify duplicated .onLoad function.
451    
452    2008-11-03  Ingo Feinerer  <feinerer@logic.at>
453    
454            * DESCRIPTION (Suggests): Added Rmpi.
455    
456    2008-11-02  Ingo Feinerer  <feinerer@logic.at>
457    
458            * R/source.R (getElem): Fix 'no visible binding' warning.
459    
460            * man/WeightFunction.Rd: Fix signature.
461    
462    2008-08-03  Ingo Feinerer  <feinerer@logic.at>
463    
464            * R/weight.R: Introduce name abbreviations for weighting functions.
465    
466    2008-07-24  Ingo Feinerer  <feinerer@logic.at>
467    
468            * R/AAA.R (.onLoad, .Last): Start and stop MPI cluster.
469    
470            * R/cluster.R: Provide convenience functions for using a MPI
471            cluster.
472    
473            * R/termdocmatrix.R (TermDocMatrix): Use MPI cluster if
474            available.
475    
476            * R/textdoccol.R (tmIndex, tmFilter, tmMap): Use MPI cluster if
477            available.
478    
479    2008-07-17  Ingo Feinerer  <feinerer@logic.at>
480    
481            * R/textdoccol.R (lapply): Removed debug print out.
482    
483    2008-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
484    
485            * R/reader.R (readRCV1): Improved meta data extraction from
486            Reuters Corpus Volume 1 documents.
487    
488    2008-05-25  Ingo Feinerer  <h0125130@wu-wien.ac.at>
489    
490            * R/transform.R: Ensure that all mappings preserve multiline
491            structures.
492    
493    2008-05-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
494    
495            * R/filter.R: Every filter has now an attribute indicating whether
496            it sould be applied to document level (doclevel).
497    
498            * R/textdoccol.R (tmFilter): Set searchFullText as new default
499            filter.
500    
501    2008-04-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
502    
503            * R/transform.R (replacePatterns): Replaced removeWords by
504            replacePatterns. Suggested by Christian Buchta.
505    
506            * R/textdoccol.R (inspect): Improved formatting.
507    
508    2008-04-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
509    
510            * inst/CITATION: Updated JSS article information.
511    
512            * R/textdoccol.R (setAs): Added coerce method from list to
513            corpus.
514    
515            * R/meta.R (meta): Improved meta data handling.
516    
517    2008-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
518    
519            * R/textdoccol.R (materialize, tmMap): Improvements suggested by
520            Christian Buchta.
521    
522            * inst/CITATION: Added template to include JSS article reference.
523    
524    2008-03-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
525    
526            * R/textdoccol.R (tmMap): Introduced lazy mapping.
527    
528            * R/source.R: Added VectorSource.
529    
530    2008-02-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
531    
532            * man/: Language codes should be in ISO 639-1 format.
533    
534            * R/textdoccol.R (asPlain): Preserve local meta data.
535    
536    2008-01-31  Ingo Feinerer  <h0125130@wu-wien.ac.at>
537    
538            * R/textdoccol.R (writeCorpus): Function for writing a corpus
539            containing plain text documents to disk.
540    
541    2008-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
542    
543            * R/termdocmatrix.R (TermDocMatrix): Ensure that dimnames are
544            always set correctly.
545    
546            * R/textdoccol.R: Set load = TRUE as default for load on demand
547            since in most cases this is the wanted behaviour.
548    
549    2008-01-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
550    
551            * R/: Renamed TextDocCol to Corpus, and Corpus to Content.
552    
553            * DESCRIPTION: Updated Version to 0.3 due to core name changes.
554    
555    2008-01-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
556    
557            * R/meta.R (meta): New function for consistent access to meta data
558            of document collections, repositories, and texts.
559    
560    2008-01-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
561    
562            * R/: Better support for encodings.
563    
564    2008-01-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
565    
566            * R/textdoccol.R (TextDocCol): Fixed bug regarding default reader
567            selection when no reader argument is given.
568    
569    2008-01-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
570    
571            * R/source.R (CSVSource): Now uses read.csv instead of scan
572            internally.
573    
574    2008-01-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
575    
576            * R/reader.R (getReaders): Returns available reader functions.
577    
578            * R/termdocmatrix.R (TermDocMatrix): Set new modular constructor
579            as default.
580    
581    2007-12-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
582    
583            * R/stopwords.R (stopwords): Shortened code, removed codetools
584            variable warnings.
585    
586            * man/: Documentation for showMeta, added an example for tmMap.
587    
588            * inst/doc/tm.Rnw: Updated vignette, comments on MS word reader,
589            some minor typos fixed.
590    
591    2007-12-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
592    
593            * R/aobjects.R (showMeta): Added method for pretty printing a
594            text document's meta data.
595    
596    2007-11-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
597    
598            * R/textdoccol.R (TextDocCol): Better handling of empty
599            arguments.
600    
601            * NAMESPACE: Exported readDOC.
602    
603            * man/completeStems.Rd: Added an example.
604    
605    2007-11-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
606    
607            * R/stopwords.R (stopwords): Look up .dat files at every
608            call. Allows users to modify stopword .dat files interactively.
609    
610    2007-11-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
611    
612            * R/termdocmatrix.R (termFreq): Correct processing of empty
613            documents.
614    
615    2007-10-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
616    
617            * man/: Updated documentation.
618    
619    2007-10-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
620    
621            * R/complete.R (completeStems): Completes (heuristically) word
622            stems.
623    
624            * R/termdocmatrix.R (TermDocMatrix2): New modular
625            constructor.
626    
627            * NAMESPACE: Exported termFreq.
628    
629    2007-10-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
630    
631            * R/reader.R (readDOC): Added MS Word reader (using antiword).
632    
633    2007-10-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
634    
635            * R/weight.R: Weighting functions for TermDocMatrix.
636    
637    2007-10-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
638    
639            * R/termdocmatrix.R (dimnames, colnames, rownames): Wrapper
640            functions for accessing dimension, column, and row names.
641    
642            * R/plot.R (plot.TermDocMatrix): Plot correlations between terms.
643    
644    2007-09-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
645    
646            * man/removePunctuation.Rd: Added documentation. Function also exported to NAMESPACE.
647    
648    2007-08-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
649    
650            * R/fungen.R: Use S4 class for function generators instead of S3 attributes.
651    
652    2007-07-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
653    
654            * R/reader.R (readPDF): Removed manual checks for pdftotext and
655            pdfinfo. The system call gives a warning anyway.
656    
657    2007-07-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
658    
659            * R/textdoccol.R (asPlain): Conversion from
660            StructuredTextDocuments to PlainTextDocuments.
661    
662    2007-07-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
663    
664            * R/termdocmatrix.R: Added convenience methods ("[", nrow, ncol)
665            for accessing term-document matrices.
666    
667            * inst/doc/tm.Rnw: readPDF is only called if pdftotext and pdfinfo
668            are installed.
669    
670    2007-07-17  Ingo Feinerer  <h0125130@wu-wien.ac.at>
671    
672            * R/termdocmatrix.R (TermDocMatrix): Improved efficiency. Kudos to
673            Christian Buchta.
674    
675    2007-07-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
676    
677            * inst/doc/tm.Rnw: Update vignette (readPDF, readHTML, preprocessReut21578XML).
678    
679    2007-07-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
680    
681            * R/reader.R (readHTML): Added very simple HTML reader to obtain StructuredTextDocuments.
682    
683            * R/reader.R (readPDF): Added PDF reader.
684    
685    2007-07-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
686    
687            * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
688    
689            * inst/stopwords/english.dat: Added the term "yes" to stopwords.
690    
691            * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
692    
693            * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
694    
695    2007-07-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
696    
697            * R/distmeasure.R (dissimilarity): Replaced dists call from
698            package cba by new dist call from package proxy.
699    
700    2007-07-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
701    
702            * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
703    
704    2007-06-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
705    
706            * R/termdocmatrix.R: require() uses the quietly option to suppress
707            loading messages.
708    
709    2007-06-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
710    
711            * R/dictionary.R: Added dictionary support.
712    
713    2007-06-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
714    
715            * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
716            documents. This simplifies some functions, e.g., asPlain.
717    
718    2007-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
719    
720            * inst/doc/tm.Rnw: Fixed some typos in vignette.
721    
722    2007-06-03  Ingo Feinerer  <h0125130@wu-wien.ac.at>
723    
724            * R/textdoccol.R (replaceWords): Added method to replace a set of
725            words by a single word. Useful for synonyms.
726    
727    2007-05-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
728    
729            * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
730    
731    2007-05-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
732    
733            * R/termdocmatrix.R (textvector): Small fix for dealing with empty
734            vectors. Thanks to Ariel Maguyon for his error report.
735            (removeSparseTerms): New function to remove columns from a
736            term-document matrix exceeding a sparse factor.
737    
738    2007-05-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
739    
740            * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
741    
742    2007-05-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
743    
744            * man/sFilter.Rd: Corrected documentation on statement format (use
745            '==' instead of '=').
746    
747    2007-05-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
748    
749            * R/aobjects.R (StructuredTextDocument): Inherits from
750            TextDocument.
751    
752    2007-05-04  Ingo Feinerer  <h0125130@wu-wien.ac.at>
753    
754            * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
755            on sparse matrices as proposed by Martin Maechler.
756    
757    2007-04-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
758    
759            * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
760            \pkg{filehash} version makes them deprecated.
761    
762    2007-04-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
763    
764            * R/termdocmatrix.R (textvector): Stemming is now performed before
765            erasing stopwords.
766            (weightMatrix): Adapted to handle sparse matrices.
767            (TermDocMatrix): Sparse matrix is now efficiently built by
768            direct stepwise insertion of row values into it.
769    
770    2007-04-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
771    
772            * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
773            due to ongoing problems. For our purposes the latter is as useful
774            as the replaced package.
775    
776    2007-04-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>
777    
778            * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.
779    
780            * man/TermDocMatrix.Rd: Remove deprecated \code{language} argument.
781    
782    2007-04-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
783    
784            * R/resolve.R (resolveISOCode): Added ISO 639-1 codes for
785            languages with available stopwords.
786    
787    2007-04-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
788    
789            * inst/doc/tm.Rnw: Minor corrections in the vignette.
790    
791    2007-04-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
792    
793            * DESCRIPTION: Update to version 0.2, since a lot of new features
794            have been integrated.
795    
796            * inst/stopwords: Updated existing stopwords and added stopwords
797            for various other languages.
798    
799    2007-04-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
800    
801            * man/: Updated documentation.
802    
803            * Work/testDb.R: Script to test database stuff.
804    
805            * R/: Fixed various database related bugs. Seems to be rather
806            useable now, i.e., consider as alpha status for now.
807    
808    2007-04-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
809    
810            * R/: Fixed some bugs related to database support.
811    
812    2007-04-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
813    
814            * man/: Added a lot of examples to the manuals.
815    
816    2007-04-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
817    
818            * man/: Updated parts of the documentation.
819    
820            * R/textdoccol.R (asPlain): Added conversion from newsgroup
821            documents to plain text documents.
822    
823    2007-04-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
824    
825            * R/textdoccol.R: Finished experimental database support. Not yet
826            intensively tested.
827    
828            * R/source.R: Now each source has a default reader.
829    
830            * R/reader.R: \code{FunctionGenerator} is now an attribute, not a
831            class anymore.
832    
833            * R/plaintextdoc.R: Custom show method for plain text documents.
834    
835            * R/aobjects.R: Added a class for structured text documents.
836    
837            * R/reader.R: Replaced remaining \code{parser} occurrences with
838            \code{reader}.
839    
840            * R/textdoccol.R (summary): Indent tags.
841    
842            * R/textdoccol.R (removePunctuation): Transform method to remove
843            punctuation marks.
844    
845    2007-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
846    
847            * R/textdoccol.R (sFilter): Simplified sFilter significantly by
848            using prescindMeta().
849    
850    2007-03-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
851    
852            * R/textdoccol.R: Improved database support.
853    
854    2007-03-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
855    
856            * R/termdocmatrix.R (TermDocMatrix): Uses sparse matrices.
857    
858            * R/resolve.R (resolveISOcode): Extracts the language from a ISO
859            language code.
860    
861            * R/textdoccol.R (TextDocCol): Refactored several parser arguments
862            into parserControl argument.
863    
864            * R/aobjects.R (TextDocument): Introduced the "Language" slot.
865    
866    2007-03-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
867    
868            * Work/tmDataSetup.R: The datasets acq and crude can now be
869            created on the fly.
870    
871            * R/stopwords.R: Introduced a function returning the stopwords for
872            a given language (English, German and French at the moment)
873    
874            * R/textdoccol.R (stemDoc): Stemming uses Rstem if available,
875            otherwise falls back to Snowball package.
876    
877  2007-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>  2007-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
878    
879          * man/dissimilarity-methods.Rd: Make clear that any method offered          * man/dissimilarity-methods.Rd: Make clear that any method offered

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