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trunk/tm/ChangeLog revision 708, Mon Jan 22 10:34:12 2007 UTC pkg/ChangeLog revision 1169, Sat Jan 14 11:32:38 2012 UTC
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1    2012-01-14  Ingo Feinerer  <feinerer@logic.at>
2    
3            * R/source.R (XMLSource, getElem.XMLSource): Simplifications as
4            proposed by Milan Bouchet-Valat.
5    
6    2012-01-11  Ingo Feinerer  <feinerer@logic.at>
7    
8            * R/matrix.R (termFreq): Fix processing of user provided
9            stopwords. Reported by Bettina GrĂ¼n.
10    
11    2011-12-23  Ingo Feinerer  <feinerer@logic.at>
12    
13            * R/matrix.R (termFreq): Fix invalid handling of
14            control$wordLengths[1]. Reported by Steven C. Bagley.
15    
16    2011-12-17  Ingo Feinerer  <feinerer@logic.at>
17    
18            * DESCRIPTION (Version): Prepare for CRAN Christmas release.
19    
20    2011-12-12  Ingo Feinerer  <feinerer@logic.at>
21    
22            * R/utils.R (map_IETF_Snowball): Map empty input to "porter".
23    
24    2011-12-07  Ingo Feinerer  <feinerer@logic.at>
25    
26            * R/transform.R (removePunctuation): Add option to preserve
27            intra-word dashes.
28    
29    2011-12-06  Ingo Feinerer  <feinerer@logic.at>
30    
31            * R/matrix.R (termFreq): Allow reordering of control option
32            processing.
33    
34    2011-11-17  Ingo Feinerer  <feinerer@logic.at>
35    
36            * R/reader.R (readPDF): Use tools:::pdf_info() instead of external
37            pdfinfo tool.
38    
39            * inst/stopwords/SMART.dat: Add SMART information retrieval system
40            stopwords (which are also used by the MC toolkit).
41    
42            * R/matrix (termFreq): Allow local option \code{bounds$local} to
43            restrict how often a term may appear in each document (generalizes
44            \code{minDocFreq}). Similarly the local option \code{wordLenghts}
45            for word length bounds (generalizes \code{minWordLength}).
46    
47            * R/matrix.R (TermDocumentMatrix.VCorpus): New global option
48            \code{bounds$global} for restricting how often a term is allowed
49            to appear in different documents.
50    
51            * R/matrix.R (TermDocumentMatrix.VCorpus): Distinguish between
52            local options delegated internally to termFreq() and global
53            options which are processed by the term-document matrix
54            constructor itself.
55    
56    2011-11-15  Ingo Feinerer  <feinerer@logic.at>
57    
58            * man/getTokenizers.Rd: Document getTokenizers().
59    
60            * man/tokenizer.Rd: Document MC_tokenizer() and scan_tokenizer().
61    
62    2011-11-04  Ingo Feinerer  <feinerer@logic.at>
63    
64            * man/matrix.Rd: Document as.TermDocumentMatrix.term_frequency.
65    
66            * man/combine.Rd: Document c.term_frequency().
67    
68    2011-10-11  Ingo Feinerer  <feinerer@logic.at>
69    
70            * R/meta.R (`meta<-.Corpus`): Assume that the replacement value
71            can be accessed via '[' and not '[['.
72    
73    2011-08-24  Ingo Feinerer  <feinerer@logic.at>
74    
75            * R/stopwords.R (stopwords): Raise an error if no stopwords are
76            available for requested language. Suggested by Derek M Jones.
77    
78    2011-05-27  Ingo Feinerer  <feinerer@logic.at>
79    
80            * R/weight.R (weightSMART): Implement Cosine and pivoted unique
81            normalization.
82    
83    2011-02-17  Ingo Feinerer  <feinerer@logic.at>
84    
85            * R/transform.R (stemDocument.PlainTextDocument): Use language
86            argument.
87    
88    2011-02-04  Ingo Feinerer  <feinerer@logic.at>
89    
90            * R/source.R: Store strings and connections instead of unevaluated
91            calls.
92    
93    2010-11-26  Ingo Feinerer  <feinerer@logic.at>
94    
95            * R/corpus.R (Corpus): Allow init and exit hooks for readers.
96    
97    2010-10-22  Ingo Feinerer  <feinerer@logic.at>
98    
99            * R/matrix.R (.TermDocumentMatrix): Make Weighting an attribute
100            (instead of a list element).
101    
102    2010-10-16  Ingo Feinerer  <feinerer@logic.at>
103    
104            * R/corpus.R (`[[.VCorpus`, `[[.PCorpus'): Access individual
105            documents by names (fallback to IDs if names are not set).
106    
107    2010-08-25  Ingo Feinerer  <feinerer@logic.at>
108    
109            * R/corpus.R (c.Corpus): When concatenating corpora, the argument
110            \code{recursive} now determines whether existing corpus meta data
111            is used.
112    
113    2010-08-06  Ingo Feinerer  <feinerer@logic.at>
114    
115            * R/transform.R: Removed convert_UTF_8(). Use enc2utf8() instead.
116    
117    2010-06-17  Ingo Feinerer  <feinerer@logic.at>
118    
119            * R/matrix.R (TermDocumentMatrix): If a dictionary is given do not
120            remove terms not occurring in the corpus anymore.
121    
122    2010-06-02  Ingo Feinerer  <feinerer@logic.at>
123    
124            * R/plot.R (Zipf_plot, Heaps_plot): Plotting functions for Zipf's
125            and Heaps' law.
126    
127    2010-05-18  Ingo Feinerer  <feinerer@logic.at>
128    
129            * R/corpus.R (Corpus, PCorpus): Use element names as IDs if
130            provided by a source.
131    
132    2010-04-09  Ingo Feinerer  <feinerer@logic.at>
133    
134            * R/source.R (.Source): Provide document names.
135    
136    2010-04-07  Ingo Feinerer  <feinerer@logic.at>
137    
138            * R/meta.R (`content_or_meta`): Utility function.
139    
140    2010-03-19  Ingo Feinerer  <feinerer@logic.at>
141    
142            * R/reader.R (readReut21578XML, readReut21578XMLasPlain): Extract
143            TOPICS, LEWISSPLIT, CGISPLIT, and OLDID meta tags.
144    
145    2010-03-03  Ingo Feinerer  <feinerer@logic.at>
146    
147            * R/weight.R (weightTfIdf): Added normalization option.
148    
149            * man/tm_tag_score.Rd: Add General Inquirer example for sentiment
150            analysis.
151    
152    2010-02-25  Ingo Feinerer  <feinerer@logic.at>
153    
154            * R/score.R (tm_tag_score): Compute a score from the number of
155            tags matching in a document.
156    
157    2010-02-18  Ingo Feinerer  <feinerer@logic.at>
158    
159            * R/complete.R (stemCompletion): New completion heuristics.
160    
161    2010-02-17  Ingo Feinerer  <feinerer@logic.at>
162    
163            * R/plot.R (plot.TermDocumentMatrix): Memory improvements.
164    
165    2010-02-06  Ingo Feinerer  <feinerer@logic.at>
166    
167            * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
168            setOldClass(c(..., "list")) works.
169    
170    2010-01-22  Ingo Feinerer  <feinerer@logic.at>
171    
172            * R/transform.R (stemDocument.character): In case input is a
173            simple character just delegate to the default Snowball stemmer.
174    
175    2010-01-15  Ingo Feinerer  <feinerer@logic.at>
176    
177            * R/reader.R (readReut21578XML, readRCV1): Extract more meta
178            data.
179    
180    2010-01-12  Ingo Feinerer  <feinerer@logic.at>
181    
182            * R/doc.R (`Content<-`): Be careful with names attribute.
183    
184    2010-01-07  Stefan Theussl  <stefan.theussl@wu.ac.at>
185    
186            * R/source.R (DirSource): Improved implementation especially when
187            handling many (> 1M) files.
188    
189    2009-12-22  Ingo Feinerer  <feinerer@logic.at>
190    
191            * R/source.R (getElem.URISource): Use encoding argument.
192    
193    2009-12-11  Ingo Feinerer  <feinerer@logic.at>
194    
195            * R/doc.R (setOldClass): Register S3 document classes to be
196            recognized by S4 methods.
197    
198    2009-11-25  Ingo Feinerer  <feinerer@logic.at>
199    
200            * R/matrix.R (termFreq): Add option to remove punctuation
201            characters.
202    
203    2009-11-19  Ingo Feinerer  <feinerer@logic.at>
204    
205            * R/matrix.R (c.TermDocumentMatrix): Added combine method for
206            merging multiple term-document matrices.
207    
208    2009-11-17  Ingo Feinerer  <feinerer@logic.at>
209    
210            * R/corpus.R (setOldClass): Register S3 corpus classes to be
211            recognized by S4 methods.
212    
213            * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
214            that CRAN Mac OS X builds do not fail any longer.
215    
216    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
217    
218            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
219            of RWeka:AlphabeticTokenizer() as default.
220    
221    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
222    
223            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
224            caused words at the beginning or the end of a line not to be removed. Do
225            not delete whitespace anymore.
226    
227    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
228    
229            * R/source.R (DirSource): Default to working directory if no path
230            is specified.
231    
232    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
233    
234            * R/source.R (DirSource): Stop on empty directories.
235    
236    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
237    
238            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
239            named documents.
240    
241    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
242    
243            * R/transform.R (removeWords): Improve regular expressions.
244    
245    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
246    
247            * R/meta.R (DublinCore): Allow lower case tags.
248    
249    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
250    
251            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
252            instead of x$children.
253    
254    2009-09-15  Ingo Feinerer  <feinerer@logic.at>
255    
256            * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
257    
258    2009-09-06  Ingo Feinerer  <feinerer@logic.at>
259    
260            * R/: Use S3 instead of S4 class system.
261    
262    2009-08-11  Ingo Feinerer  <feinerer@logic.at>
263    
264            * R/reader.R (readMail): Moved to tm.plugin.mail package.
265    
266    2009-07-04  Ingo Feinerer  <feinerer@logic.at>
267    
268            * R/reader.R (readNewsgroup): Rename to readMail as newsgroup
269            postings are basically e-mails with some extra headers.
270    
271    2009-07-03  Ingo Feinerer  <feinerer@logic.at>
272    
273            * R/transform.R: Move convertMboxEml, removeCitation,
274            removeMultipart, and removeSignature to the tm.plugin.mail package
275            since they are mainly utility functions (for handling e-mails) and
276            not very framework specific.
277    
278    2009-06-28  Ingo Feinerer  <feinerer@logic.at>
279    
280            * man/: Fix documentation.
281    
282    2009-06-26  Ingo Feinerer  <feinerer@logic.at>
283    
284            * R/reader.R (readReut21578XMLasPlain): New reader which returns a
285            plain text document instead of an XML document for texts of the
286            Reuters-21578 dataset.
287    
288            * R/sparse.R: Removed since the slam package is now available on
289            CRAN.
290    
291            * DESCRIPTION (Depends): Add slam package.
292    
293    2009-06-17  Ingo Feinerer  <feinerer@logic.at>
294    
295            * R/transform.R (stemDoc): Fix character(0) handling.
296    
297    2009-06-12  Ingo Feinerer  <feinerer@logic.at>
298    
299            * R/doc.R (show): Pretty print.
300    
301    2009-05-27  Ingo Feinerer  <feinerer@logic.at>
302    
303            * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
304            gracefully.
305    
306    2009-05-13  Ingo Feinerer  <feinerer@logic.at>
307    
308            * R/corpus.R: Make corpus virtual. Implement corpus with standard
309            and permanent storage semantics.
310    
311            * DESCRIPTION: New major release. A *lot* of improvements.
312    
313    2009-05-04   Ingo Feinerer <feinerer@logic.at>
314    
315            * NAMESPACE: Export some simple_triplet_matrix functions.
316    
317    2009-04-28   Ingo Feinerer <feinerer@logic.at>
318    
319            * R/weight.R: Adapt tf-idf to new matrix format.
320    
321    2009-04-27  Ingo Feinerer  <feinerer@logic.at>
322    
323            * R/matrix.R: Create two distinct classes for term-document and
324            document-term matrices.
325    
326    2009-04-26  Ingo Feinerer  <feinerer@logic.at>
327    
328            * R/termdocmatrix.R: No longer use Matrix package. This reduces
329            package start-up time significantly.
330    
331    2009-04-11  Ingo Feinerer  <feinerer@logic.at>
332    
333            * inst/doc/tm.Rnw: Fix code/documentation mismatch.
334    
335    2009-04-04  Ingo Feinerer  <feinerer@logic.at>
336    
337            * R/transform.R (tmReduce): Combine multiple maps into one
338            transformation.
339    
340    2009-04-03  Ingo Feinerer  <feinerer@logic.at>
341    
342            * R/weight.R: Remove weightLogical since it does not return a
343            dgCMatrix.
344    
345            * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
346            or TermDocumentMatrix instead.
347    
348    2009-03-28  Ingo Feinerer  <feinerer@logic.at>
349    
350            * inst/doc/extensions.Rnw: Finished vignette.
351    
352    2009-03-27  Ingo Feinerer  <feinerer@logic.at>
353    
354            * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
355            DocumentTermMatrix representations.
356    
357    2009-03-23  Ingo Feinerer  <feinerer@logic.at>
358    
359            * R/reader.R (readXML): New reader for arbitrary XML files.
360    
361    2009-03-22  Ingo Feinerer  <feinerer@logic.at>
362    
363            * R/source.R (CSVSource): Defunct (use DataframeSource instead).
364            (XMLSource): New XMLSource class for arbitrary XML files.
365            (Source): New slot Vectorized.
366    
367    2009-03-21  Ingo Feinerer  <feinerer@logic.at>
368    
369            * R/reader.R (readTabular): Experimental reader for tabular data
370            structures which can be customized via user-defined mappings.
371    
372            * R/reader.R: Always use UTC time zone.
373    
374            * R/AAA.R (.onLoad): No longer try to start a MPI cluster.
375    
376    2009-03-20  Ingo Feinerer  <feinerer@logic.at>
377    
378            * R/reader.R (readDOC): Options can be passed over to antiword.
379    
380            * R/reader.R (readPDF): Options can be passed over to pdfinfo and
381            pdftotext.
382    
383    2009-03-10  Ingo Feinerer  <feinerer@logic.at>
384    
385            * R/source.R (DirSource): Add pattern and ignore.case arguments
386            which are internally passed over to list.files().
387    
388    2009-03-02  Ingo Feinerer  <feinerer@logic.at>
389    
390            * inst/doc/tm.Rnw: Suppress pointless loading message.
391    
392    2009-01-29  Ingo Feinerer  <feinerer@logic.at>
393    
394            * DESCRIPTION: Speed up package loading (via moving packages not
395            strictly necessary for normal operation to Suggests instead of
396            Depends).
397    
398    2009-01-08  Ingo Feinerer  <feinerer@logic.at>
399    
400            * R/reader.R (readNewsgroup): The date format is now configurable.
401    
402    2008-12-20  Ingo Feinerer  <feinerer@logic.at>
403    
404            * R/preprocess.R (convertMboxEml): Fix off-by-one error.
405    
406    2008-12-16  Ingo Feinerer  <feinerer@logic.at>
407    
408            * R/termdocmatrix.R (TermDocMatrix): Sort row indices.
409    
410    2008-12-06  Ingo Feinerer  <feinerer@logic.at>
411    
412            * R/source.R (DataframeSource): New source class for data frames.
413    
414            * R/source.R: Fixed non-standard call evaluation.
415    
416    2008-11-29  Ingo Feinerer  <feinerer@logic.at>
417    
418            * R/source.R (URISource): New source class for a single document.
419    
420    2008-11-27  Ingo Feinerer  <feinerer@logic.at>
421    
422            * R/source.R: Refactoring.
423    
424    2008-11-25  Ingo Feinerer  <feinerer@logic.at>
425    
426            * R/AAA.R (.onLoad, .Last): Use tryCatch() to handle misconfigured
427            Rmpi installations more gracefully.
428    
429    2008-11-08  Ingo Feinerer  <feinerer@logic.at>
430    
431            * R/source.R (Source): Add Length slot.
432    
433    2008-11-06  Ingo Feinerer  <feinerer@logic.at>
434    
435            * R/AAA.R: Unify duplicated .onLoad function.
436    
437    2008-11-03  Ingo Feinerer  <feinerer@logic.at>
438    
439            * DESCRIPTION (Suggests): Added Rmpi.
440    
441    2008-11-02  Ingo Feinerer  <feinerer@logic.at>
442    
443            * R/source.R (getElem): Fix 'no visible binding' warning.
444    
445            * man/WeightFunction.Rd: Fix signature.
446    
447    2008-08-03  Ingo Feinerer  <feinerer@logic.at>
448    
449            * R/weight.R: Introduce name abbreviations for weighting functions.
450    
451    2008-07-24  Ingo Feinerer  <feinerer@logic.at>
452    
453            * R/AAA.R (.onLoad, .Last): Start and stop MPI cluster.
454    
455            * R/cluster.R: Provide convenience functions for using a MPI
456            cluster.
457    
458            * R/termdocmatrix.R (TermDocMatrix): Use MPI cluster if
459            available.
460    
461            * R/textdoccol.R (tmIndex, tmFilter, tmMap): Use MPI cluster if
462            available.
463    
464    2008-07-17  Ingo Feinerer  <feinerer@logic.at>
465    
466            * R/textdoccol.R (lapply): Removed debug print out.
467    
468    2008-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
469    
470            * R/reader.R (readRCV1): Improved meta data extraction from
471            Reuters Corpus Volume 1 documents.
472    
473    2008-05-25  Ingo Feinerer  <h0125130@wu-wien.ac.at>
474    
475            * R/transform.R: Ensure that all mappings preserve multiline
476            structures.
477    
478    2008-05-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
479    
480            * R/filter.R: Every filter has now an attribute indicating whether
481            it sould be applied to document level (doclevel).
482    
483            * R/textdoccol.R (tmFilter): Set searchFullText as new default
484            filter.
485    
486    2008-04-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
487    
488            * R/transform.R (replacePatterns): Replaced removeWords by
489            replacePatterns. Suggested by Christian Buchta.
490    
491            * R/textdoccol.R (inspect): Improved formatting.
492    
493    2008-04-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
494    
495            * inst/CITATION: Updated JSS article information.
496    
497            * R/textdoccol.R (setAs): Added coerce method from list to
498            corpus.
499    
500            * R/meta.R (meta): Improved meta data handling.
501    
502    2008-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
503    
504            * R/textdoccol.R (materialize, tmMap): Improvements suggested by
505            Christian Buchta.
506    
507            * inst/CITATION: Added template to include JSS article reference.
508    
509    2008-03-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
510    
511            * R/textdoccol.R (tmMap): Introduced lazy mapping.
512    
513            * R/source.R: Added VectorSource.
514    
515    2008-02-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
516    
517            * man/: Language codes should be in ISO 639-1 format.
518    
519            * R/textdoccol.R (asPlain): Preserve local meta data.
520    
521    2008-01-31  Ingo Feinerer  <h0125130@wu-wien.ac.at>
522    
523            * R/textdoccol.R (writeCorpus): Function for writing a corpus
524            containing plain text documents to disk.
525    
526    2008-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
527    
528            * R/termdocmatrix.R (TermDocMatrix): Ensure that dimnames are
529            always set correctly.
530    
531            * R/textdoccol.R: Set load = TRUE as default for load on demand
532            since in most cases this is the wanted behaviour.
533    
534    2008-01-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
535    
536            * R/: Renamed TextDocCol to Corpus, and Corpus to Content.
537    
538            * DESCRIPTION: Updated Version to 0.3 due to core name changes.
539    
540    2008-01-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
541    
542            * R/meta.R (meta): New function for consistent access to meta data
543            of document collections, repositories, and texts.
544    
545    2008-01-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
546    
547            * R/: Better support for encodings.
548    
549    2008-01-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
550    
551            * R/textdoccol.R (TextDocCol): Fixed bug regarding default reader
552            selection when no reader argument is given.
553    
554    2008-01-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
555    
556            * R/source.R (CSVSource): Now uses read.csv instead of scan
557            internally.
558    
559    2008-01-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
560    
561            * R/reader.R (getReaders): Returns available reader functions.
562    
563            * R/termdocmatrix.R (TermDocMatrix): Set new modular constructor
564            as default.
565    
566    2007-12-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
567    
568            * R/stopwords.R (stopwords): Shortened code, removed codetools
569            variable warnings.
570    
571            * man/: Documentation for showMeta, added an example for tmMap.
572    
573            * inst/doc/tm.Rnw: Updated vignette, comments on MS word reader,
574            some minor typos fixed.
575    
576    2007-12-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
577    
578            * R/aobjects.R (showMeta): Added method for pretty printing a
579            text document's meta data.
580    
581    2007-11-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
582    
583            * R/textdoccol.R (TextDocCol): Better handling of empty
584            arguments.
585    
586            * NAMESPACE: Exported readDOC.
587    
588            * man/completeStems.Rd: Added an example.
589    
590    2007-11-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
591    
592            * R/stopwords.R (stopwords): Look up .dat files at every
593            call. Allows users to modify stopword .dat files interactively.
594    
595    2007-11-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
596    
597            * R/termdocmatrix.R (termFreq): Correct processing of empty
598            documents.
599    
600    2007-10-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
601    
602            * man/: Updated documentation.
603    
604    2007-10-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
605    
606            * R/complete.R (completeStems): Completes (heuristically) word
607            stems.
608    
609            * R/termdocmatrix.R (TermDocMatrix2): New modular
610            constructor.
611    
612            * NAMESPACE: Exported termFreq.
613    
614    2007-10-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
615    
616            * R/reader.R (readDOC): Added MS Word reader (using antiword).
617    
618    2007-10-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
619    
620            * R/weight.R: Weighting functions for TermDocMatrix.
621    
622    2007-10-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
623    
624            * R/termdocmatrix.R (dimnames, colnames, rownames): Wrapper
625            functions for accessing dimension, column, and row names.
626    
627            * R/plot.R (plot.TermDocMatrix): Plot correlations between terms.
628    
629    2007-09-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
630    
631            * man/removePunctuation.Rd: Added documentation. Function also exported to NAMESPACE.
632    
633    2007-08-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
634    
635            * R/fungen.R: Use S4 class for function generators instead of S3 attributes.
636    
637    2007-07-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
638    
639            * R/reader.R (readPDF): Removed manual checks for pdftotext and
640            pdfinfo. The system call gives a warning anyway.
641    
642    2007-07-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
643    
644            * R/textdoccol.R (asPlain): Conversion from
645            StructuredTextDocuments to PlainTextDocuments.
646    
647    2007-07-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
648    
649            * R/termdocmatrix.R: Added convenience methods ("[", nrow, ncol)
650            for accessing term-document matrices.
651    
652            * inst/doc/tm.Rnw: readPDF is only called if pdftotext and pdfinfo
653            are installed.
654    
655    2007-07-17  Ingo Feinerer  <h0125130@wu-wien.ac.at>
656    
657            * R/termdocmatrix.R (TermDocMatrix): Improved efficiency. Kudos to
658            Christian Buchta.
659    
660    2007-07-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
661    
662            * inst/doc/tm.Rnw: Update vignette (readPDF, readHTML, preprocessReut21578XML).
663    
664    2007-07-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
665    
666            * R/reader.R (readHTML): Added very simple HTML reader to obtain StructuredTextDocuments.
667    
668            * R/reader.R (readPDF): Added PDF reader.
669    
670    2007-07-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
671    
672            * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
673    
674            * inst/stopwords/english.dat: Added the term "yes" to stopwords.
675    
676            * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
677    
678            * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
679    
680    2007-07-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
681    
682            * R/distmeasure.R (dissimilarity): Replaced dists call from
683            package cba by new dist call from package proxy.
684    
685    2007-07-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
686    
687            * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
688    
689    2007-06-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
690    
691            * R/termdocmatrix.R: require() uses the quietly option to suppress
692            loading messages.
693    
694    2007-06-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
695    
696            * R/dictionary.R: Added dictionary support.
697    
698    2007-06-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
699    
700            * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
701            documents. This simplifies some functions, e.g., asPlain.
702    
703    2007-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
704    
705            * inst/doc/tm.Rnw: Fixed some typos in vignette.
706    
707    2007-06-03  Ingo Feinerer  <h0125130@wu-wien.ac.at>
708    
709            * R/textdoccol.R (replaceWords): Added method to replace a set of
710            words by a single word. Useful for synonyms.
711    
712    2007-05-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
713    
714            * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
715    
716    2007-05-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
717    
718            * R/termdocmatrix.R (textvector): Small fix for dealing with empty
719            vectors. Thanks to Ariel Maguyon for his error report.
720            (removeSparseTerms): New function to remove columns from a
721            term-document matrix exceeding a sparse factor.
722    
723    2007-05-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
724    
725            * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
726    
727    2007-05-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
728    
729            * man/sFilter.Rd: Corrected documentation on statement format (use
730            '==' instead of '=').
731    
732    2007-05-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
733    
734            * R/aobjects.R (StructuredTextDocument): Inherits from
735            TextDocument.
736    
737    2007-05-04  Ingo Feinerer  <h0125130@wu-wien.ac.at>
738    
739            * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
740            on sparse matrices as proposed by Martin Maechler.
741    
742    2007-04-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
743    
744            * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
745            \pkg{filehash} version makes them deprecated.
746    
747    2007-04-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
748    
749            * R/termdocmatrix.R (textvector): Stemming is now performed before
750            erasing stopwords.
751            (weightMatrix): Adapted to handle sparse matrices.
752            (TermDocMatrix): Sparse matrix is now efficiently built by
753            direct stepwise insertion of row values into it.
754    
755    2007-04-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
756    
757            * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
758            due to ongoing problems. For our purposes the latter is as useful
759            as the replaced package.
760    
761    2007-04-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>
762    
763            * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.
764    
765            * man/TermDocMatrix.Rd: Remove deprecated \code{language} argument.
766    
767    2007-04-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
768    
769            * R/resolve.R (resolveISOCode): Added ISO 639-1 codes for
770            languages with available stopwords.
771    
772    2007-04-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
773    
774            * inst/doc/tm.Rnw: Minor corrections in the vignette.
775    
776    2007-04-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
777    
778            * DESCRIPTION: Update to version 0.2, since a lot of new features
779            have been integrated.
780    
781            * inst/stopwords: Updated existing stopwords and added stopwords
782            for various other languages.
783    
784    2007-04-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
785    
786            * man/: Updated documentation.
787    
788            * Work/testDb.R: Script to test database stuff.
789    
790            * R/: Fixed various database related bugs. Seems to be rather
791            useable now, i.e., consider as alpha status for now.
792    
793    2007-04-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
794    
795            * R/: Fixed some bugs related to database support.
796    
797    2007-04-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
798    
799            * man/: Added a lot of examples to the manuals.
800    
801    2007-04-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
802    
803            * man/: Updated parts of the documentation.
804    
805            * R/textdoccol.R (asPlain): Added conversion from newsgroup
806            documents to plain text documents.
807    
808    2007-04-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
809    
810            * R/textdoccol.R: Finished experimental database support. Not yet
811            intensively tested.
812    
813            * R/source.R: Now each source has a default reader.
814    
815            * R/reader.R: \code{FunctionGenerator} is now an attribute, not a
816            class anymore.
817    
818            * R/plaintextdoc.R: Custom show method for plain text documents.
819    
820            * R/aobjects.R: Added a class for structured text documents.
821    
822            * R/reader.R: Replaced remaining \code{parser} occurrences with
823            \code{reader}.
824    
825            * R/textdoccol.R (summary): Indent tags.
826    
827            * R/textdoccol.R (removePunctuation): Transform method to remove
828            punctuation marks.
829    
830    2007-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
831    
832            * R/textdoccol.R (sFilter): Simplified sFilter significantly by
833            using prescindMeta().
834    
835    2007-03-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
836    
837            * R/textdoccol.R: Improved database support.
838    
839    2007-03-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
840    
841            * R/termdocmatrix.R (TermDocMatrix): Uses sparse matrices.
842    
843            * R/resolve.R (resolveISOcode): Extracts the language from a ISO
844            language code.
845    
846            * R/textdoccol.R (TextDocCol): Refactored several parser arguments
847            into parserControl argument.
848    
849            * R/aobjects.R (TextDocument): Introduced the "Language" slot.
850    
851    2007-03-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
852    
853            * Work/tmDataSetup.R: The datasets acq and crude can now be
854            created on the fly.
855    
856            * R/stopwords.R: Introduced a function returning the stopwords for
857            a given language (English, German and French at the moment)
858    
859            * R/textdoccol.R (stemDoc): Stemming uses Rstem if available,
860            otherwise falls back to Snowball package.
861    
862    2007-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
863    
864            * man/dissimilarity-methods.Rd: Make clear that any method offered
865            by "dists" from package "cba" can be used.
866    
867  2007-01-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>  2007-01-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
868    
869            * inst/doc/tm.Rnw: Fixed quotes-appearing-as-boxes-bug according
870            to Kurt's latex suggestion. Removed points and underscores in
871            variable names for consistent naming.
872    
873          * DESCRIPTION: Update to version 0.1-2.          * DESCRIPTION: Update to version 0.1-2.
874    
875          * man/TextRepository.Rd: Fixed bug in documentation.          * man/TextRepository.Rd: Fixed bug in documentation.

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