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trunk/tm/ChangeLog revision 711, Tue Jan 30 13:03:55 2007 UTC pkg/ChangeLog revision 1166, Sat Dec 17 10:32:05 2011 UTC
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1    2011-12-17  Ingo Feinerer  <feinerer@logic.at>
2    
3            * DESCRIPTION (Version): Prepare for CRAN Christmas release.
4    
5    2011-12-12  Ingo Feinerer  <feinerer@logic.at>
6    
7            * R/utils.R (map_IETF_Snowball): Map empty input to "porter".
8    
9    2011-12-07  Ingo Feinerer  <feinerer@logic.at>
10    
11            * R/transform.R (removePunctuation): Add option to preserve
12            intra-word dashes.
13    
14    2011-12-06  Ingo Feinerer  <feinerer@logic.at>
15    
16            * R/matrix.R (termFreq): Allow reordering of control option
17            processing.
18    
19    2011-11-17  Ingo Feinerer  <feinerer@logic.at>
20    
21            * R/reader.R (readPDF): Use tools:::pdf_info() instead of external
22            pdfinfo tool.
23    
24            * inst/stopwords/SMART.dat: Add SMART information retrieval system
25            stopwords (which are also used by the MC toolkit).
26    
27            * R/matrix (termFreq): Allow local option \code{bounds$local} to
28            restrict how often a term may appear in each document (generalizes
29            \code{minDocFreq}). Similarly the local option \code{wordLenghts}
30            for word length bounds (generalizes \code{minWordLength}).
31    
32            * R/matrix.R (TermDocumentMatrix.VCorpus): New global option
33            \code{bounds$global} for restricting how often a term is allowed
34            to appear in different documents.
35    
36            * R/matrix.R (TermDocumentMatrix.VCorpus): Distinguish between
37            local options delegated internally to termFreq() and global
38            options which are processed by the term-document matrix
39            constructor itself.
40    
41    2011-11-15  Ingo Feinerer  <feinerer@logic.at>
42    
43            * man/getTokenizers.Rd: Document getTokenizers().
44    
45            * man/tokenizer.Rd: Document MC_tokenizer() and scan_tokenizer().
46    
47    2011-11-04  Ingo Feinerer  <feinerer@logic.at>
48    
49            * man/matrix.Rd: Document as.TermDocumentMatrix.term_frequency.
50    
51            * man/combine.Rd: Document c.term_frequency().
52    
53    2011-10-11  Ingo Feinerer  <feinerer@logic.at>
54    
55            * R/meta.R (`meta<-.Corpus`): Assume that the replacement value
56            can be accessed via '[' and not '[['.
57    
58    2011-08-24  Ingo Feinerer  <feinerer@logic.at>
59    
60            * R/stopwords.R (stopwords): Raise an error if no stopwords are
61            available for requested language. Suggested by Derek M Jones.
62    
63    2011-05-27  Ingo Feinerer  <feinerer@logic.at>
64    
65            * R/weight.R (weightSMART): Implement Cosine and pivoted unique
66            normalization.
67    
68    2011-02-17  Ingo Feinerer  <feinerer@logic.at>
69    
70            * R/transform.R (stemDocument.PlainTextDocument): Use language
71            argument.
72    
73    2011-02-04  Ingo Feinerer  <feinerer@logic.at>
74    
75            * R/source.R: Store strings and connections instead of unevaluated
76            calls.
77    
78    2010-11-26  Ingo Feinerer  <feinerer@logic.at>
79    
80            * R/corpus.R (Corpus): Allow init and exit hooks for readers.
81    
82    2010-10-22  Ingo Feinerer  <feinerer@logic.at>
83    
84            * R/matrix.R (.TermDocumentMatrix): Make Weighting an attribute
85            (instead of a list element).
86    
87    2010-10-16  Ingo Feinerer  <feinerer@logic.at>
88    
89            * R/corpus.R (`[[.VCorpus`, `[[.PCorpus'): Access individual
90            documents by names (fallback to IDs if names are not set).
91    
92    2010-08-25  Ingo Feinerer  <feinerer@logic.at>
93    
94            * R/corpus.R (c.Corpus): When concatenating corpora, the argument
95            \code{recursive} now determines whether existing corpus meta data
96            is used.
97    
98    2010-08-06  Ingo Feinerer  <feinerer@logic.at>
99    
100            * R/transform.R: Removed convert_UTF_8(). Use enc2utf8() instead.
101    
102    2010-06-17  Ingo Feinerer  <feinerer@logic.at>
103    
104            * R/matrix.R (TermDocumentMatrix): If a dictionary is given do not
105            remove terms not occurring in the corpus anymore.
106    
107    2010-06-02  Ingo Feinerer  <feinerer@logic.at>
108    
109            * R/plot.R (Zipf_plot, Heaps_plot): Plotting functions for Zipf's
110            and Heaps' law.
111    
112    2010-05-18  Ingo Feinerer  <feinerer@logic.at>
113    
114            * R/corpus.R (Corpus, PCorpus): Use element names as IDs if
115            provided by a source.
116    
117    2010-04-09  Ingo Feinerer  <feinerer@logic.at>
118    
119            * R/source.R (.Source): Provide document names.
120    
121    2010-04-07  Ingo Feinerer  <feinerer@logic.at>
122    
123            * R/meta.R (`content_or_meta`): Utility function.
124    
125    2010-03-19  Ingo Feinerer  <feinerer@logic.at>
126    
127            * R/reader.R (readReut21578XML, readReut21578XMLasPlain): Extract
128            TOPICS, LEWISSPLIT, CGISPLIT, and OLDID meta tags.
129    
130    2010-03-03  Ingo Feinerer  <feinerer@logic.at>
131    
132            * R/weight.R (weightTfIdf): Added normalization option.
133    
134            * man/tm_tag_score.Rd: Add General Inquirer example for sentiment
135            analysis.
136    
137    2010-02-25  Ingo Feinerer  <feinerer@logic.at>
138    
139            * R/score.R (tm_tag_score): Compute a score from the number of
140            tags matching in a document.
141    
142    2010-02-18  Ingo Feinerer  <feinerer@logic.at>
143    
144            * R/complete.R (stemCompletion): New completion heuristics.
145    
146    2010-02-17  Ingo Feinerer  <feinerer@logic.at>
147    
148            * R/plot.R (plot.TermDocumentMatrix): Memory improvements.
149    
150    2010-02-06  Ingo Feinerer  <feinerer@logic.at>
151    
152            * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
153            setOldClass(c(..., "list")) works.
154    
155    2010-01-22  Ingo Feinerer  <feinerer@logic.at>
156    
157            * R/transform.R (stemDocument.character): In case input is a
158            simple character just delegate to the default Snowball stemmer.
159    
160    2010-01-15  Ingo Feinerer  <feinerer@logic.at>
161    
162            * R/reader.R (readReut21578XML, readRCV1): Extract more meta
163            data.
164    
165    2010-01-12  Ingo Feinerer  <feinerer@logic.at>
166    
167            * R/doc.R (`Content<-`): Be careful with names attribute.
168    
169    2010-01-07  Stefan Theussl  <stefan.theussl@wu.ac.at>
170    
171            * R/source.R (DirSource): Improved implementation especially when
172            handling many (> 1M) files.
173    
174    2009-12-22  Ingo Feinerer  <feinerer@logic.at>
175    
176            * R/source.R (getElem.URISource): Use encoding argument.
177    
178    2009-12-11  Ingo Feinerer  <feinerer@logic.at>
179    
180            * R/doc.R (setOldClass): Register S3 document classes to be
181            recognized by S4 methods.
182    
183    2009-11-25  Ingo Feinerer  <feinerer@logic.at>
184    
185            * R/matrix.R (termFreq): Add option to remove punctuation
186            characters.
187    
188    2009-11-19  Ingo Feinerer  <feinerer@logic.at>
189    
190            * R/matrix.R (c.TermDocumentMatrix): Added combine method for
191            merging multiple term-document matrices.
192    
193    2009-11-17  Ingo Feinerer  <feinerer@logic.at>
194    
195            * R/corpus.R (setOldClass): Register S3 corpus classes to be
196            recognized by S4 methods.
197    
198            * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
199            that CRAN Mac OS X builds do not fail any longer.
200    
201    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
202    
203            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
204            of RWeka:AlphabeticTokenizer() as default.
205    
206    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
207    
208            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
209            caused words at the beginning or the end of a line not to be removed. Do
210            not delete whitespace anymore.
211    
212    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
213    
214            * R/source.R (DirSource): Default to working directory if no path
215            is specified.
216    
217    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
218    
219            * R/source.R (DirSource): Stop on empty directories.
220    
221    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
222    
223            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
224            named documents.
225    
226    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
227    
228            * R/transform.R (removeWords): Improve regular expressions.
229    
230    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
231    
232            * R/meta.R (DublinCore): Allow lower case tags.
233    
234    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
235    
236            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
237            instead of x$children.
238    
239    2009-09-15  Ingo Feinerer  <feinerer@logic.at>
240    
241            * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
242    
243    2009-09-06  Ingo Feinerer  <feinerer@logic.at>
244    
245            * R/: Use S3 instead of S4 class system.
246    
247    2009-08-11  Ingo Feinerer  <feinerer@logic.at>
248    
249            * R/reader.R (readMail): Moved to tm.plugin.mail package.
250    
251    2009-07-04  Ingo Feinerer  <feinerer@logic.at>
252    
253            * R/reader.R (readNewsgroup): Rename to readMail as newsgroup
254            postings are basically e-mails with some extra headers.
255    
256    2009-07-03  Ingo Feinerer  <feinerer@logic.at>
257    
258            * R/transform.R: Move convertMboxEml, removeCitation,
259            removeMultipart, and removeSignature to the tm.plugin.mail package
260            since they are mainly utility functions (for handling e-mails) and
261            not very framework specific.
262    
263    2009-06-28  Ingo Feinerer  <feinerer@logic.at>
264    
265            * man/: Fix documentation.
266    
267    2009-06-26  Ingo Feinerer  <feinerer@logic.at>
268    
269            * R/reader.R (readReut21578XMLasPlain): New reader which returns a
270            plain text document instead of an XML document for texts of the
271            Reuters-21578 dataset.
272    
273            * R/sparse.R: Removed since the slam package is now available on
274            CRAN.
275    
276            * DESCRIPTION (Depends): Add slam package.
277    
278    2009-06-17  Ingo Feinerer  <feinerer@logic.at>
279    
280            * R/transform.R (stemDoc): Fix character(0) handling.
281    
282    2009-06-12  Ingo Feinerer  <feinerer@logic.at>
283    
284            * R/doc.R (show): Pretty print.
285    
286    2009-05-27  Ingo Feinerer  <feinerer@logic.at>
287    
288            * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
289            gracefully.
290    
291    2009-05-13  Ingo Feinerer  <feinerer@logic.at>
292    
293            * R/corpus.R: Make corpus virtual. Implement corpus with standard
294            and permanent storage semantics.
295    
296            * DESCRIPTION: New major release. A *lot* of improvements.
297    
298    2009-05-04   Ingo Feinerer <feinerer@logic.at>
299    
300            * NAMESPACE: Export some simple_triplet_matrix functions.
301    
302    2009-04-28   Ingo Feinerer <feinerer@logic.at>
303    
304            * R/weight.R: Adapt tf-idf to new matrix format.
305    
306    2009-04-27  Ingo Feinerer  <feinerer@logic.at>
307    
308            * R/matrix.R: Create two distinct classes for term-document and
309            document-term matrices.
310    
311    2009-04-26  Ingo Feinerer  <feinerer@logic.at>
312    
313            * R/termdocmatrix.R: No longer use Matrix package. This reduces
314            package start-up time significantly.
315    
316    2009-04-11  Ingo Feinerer  <feinerer@logic.at>
317    
318            * inst/doc/tm.Rnw: Fix code/documentation mismatch.
319    
320    2009-04-04  Ingo Feinerer  <feinerer@logic.at>
321    
322            * R/transform.R (tmReduce): Combine multiple maps into one
323            transformation.
324    
325    2009-04-03  Ingo Feinerer  <feinerer@logic.at>
326    
327            * R/weight.R: Remove weightLogical since it does not return a
328            dgCMatrix.
329    
330            * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
331            or TermDocumentMatrix instead.
332    
333    2009-03-28  Ingo Feinerer  <feinerer@logic.at>
334    
335            * inst/doc/extensions.Rnw: Finished vignette.
336    
337    2009-03-27  Ingo Feinerer  <feinerer@logic.at>
338    
339            * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
340            DocumentTermMatrix representations.
341    
342    2009-03-23  Ingo Feinerer  <feinerer@logic.at>
343    
344            * R/reader.R (readXML): New reader for arbitrary XML files.
345    
346    2009-03-22  Ingo Feinerer  <feinerer@logic.at>
347    
348            * R/source.R (CSVSource): Defunct (use DataframeSource instead).
349            (XMLSource): New XMLSource class for arbitrary XML files.
350            (Source): New slot Vectorized.
351    
352    2009-03-21  Ingo Feinerer  <feinerer@logic.at>
353    
354            * R/reader.R (readTabular): Experimental reader for tabular data
355            structures which can be customized via user-defined mappings.
356    
357            * R/reader.R: Always use UTC time zone.
358    
359            * R/AAA.R (.onLoad): No longer try to start a MPI cluster.
360    
361    2009-03-20  Ingo Feinerer  <feinerer@logic.at>
362    
363            * R/reader.R (readDOC): Options can be passed over to antiword.
364    
365            * R/reader.R (readPDF): Options can be passed over to pdfinfo and
366            pdftotext.
367    
368    2009-03-10  Ingo Feinerer  <feinerer@logic.at>
369    
370            * R/source.R (DirSource): Add pattern and ignore.case arguments
371            which are internally passed over to list.files().
372    
373    2009-03-02  Ingo Feinerer  <feinerer@logic.at>
374    
375            * inst/doc/tm.Rnw: Suppress pointless loading message.
376    
377    2009-01-29  Ingo Feinerer  <feinerer@logic.at>
378    
379            * DESCRIPTION: Speed up package loading (via moving packages not
380            strictly necessary for normal operation to Suggests instead of
381            Depends).
382    
383    2009-01-08  Ingo Feinerer  <feinerer@logic.at>
384    
385            * R/reader.R (readNewsgroup): The date format is now configurable.
386    
387    2008-12-20  Ingo Feinerer  <feinerer@logic.at>
388    
389            * R/preprocess.R (convertMboxEml): Fix off-by-one error.
390    
391    2008-12-16  Ingo Feinerer  <feinerer@logic.at>
392    
393            * R/termdocmatrix.R (TermDocMatrix): Sort row indices.
394    
395    2008-12-06  Ingo Feinerer  <feinerer@logic.at>
396    
397            * R/source.R (DataframeSource): New source class for data frames.
398    
399            * R/source.R: Fixed non-standard call evaluation.
400    
401    2008-11-29  Ingo Feinerer  <feinerer@logic.at>
402    
403            * R/source.R (URISource): New source class for a single document.
404    
405    2008-11-27  Ingo Feinerer  <feinerer@logic.at>
406    
407            * R/source.R: Refactoring.
408    
409    2008-11-25  Ingo Feinerer  <feinerer@logic.at>
410    
411            * R/AAA.R (.onLoad, .Last): Use tryCatch() to handle misconfigured
412            Rmpi installations more gracefully.
413    
414    2008-11-08  Ingo Feinerer  <feinerer@logic.at>
415    
416            * R/source.R (Source): Add Length slot.
417    
418    2008-11-06  Ingo Feinerer  <feinerer@logic.at>
419    
420            * R/AAA.R: Unify duplicated .onLoad function.
421    
422    2008-11-03  Ingo Feinerer  <feinerer@logic.at>
423    
424            * DESCRIPTION (Suggests): Added Rmpi.
425    
426    2008-11-02  Ingo Feinerer  <feinerer@logic.at>
427    
428            * R/source.R (getElem): Fix 'no visible binding' warning.
429    
430            * man/WeightFunction.Rd: Fix signature.
431    
432    2008-08-03  Ingo Feinerer  <feinerer@logic.at>
433    
434            * R/weight.R: Introduce name abbreviations for weighting functions.
435    
436    2008-07-24  Ingo Feinerer  <feinerer@logic.at>
437    
438            * R/AAA.R (.onLoad, .Last): Start and stop MPI cluster.
439    
440            * R/cluster.R: Provide convenience functions for using a MPI
441            cluster.
442    
443            * R/termdocmatrix.R (TermDocMatrix): Use MPI cluster if
444            available.
445    
446            * R/textdoccol.R (tmIndex, tmFilter, tmMap): Use MPI cluster if
447            available.
448    
449    2008-07-17  Ingo Feinerer  <feinerer@logic.at>
450    
451            * R/textdoccol.R (lapply): Removed debug print out.
452    
453    2008-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
454    
455            * R/reader.R (readRCV1): Improved meta data extraction from
456            Reuters Corpus Volume 1 documents.
457    
458    2008-05-25  Ingo Feinerer  <h0125130@wu-wien.ac.at>
459    
460            * R/transform.R: Ensure that all mappings preserve multiline
461            structures.
462    
463    2008-05-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
464    
465            * R/filter.R: Every filter has now an attribute indicating whether
466            it sould be applied to document level (doclevel).
467    
468            * R/textdoccol.R (tmFilter): Set searchFullText as new default
469            filter.
470    
471    2008-04-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
472    
473            * R/transform.R (replacePatterns): Replaced removeWords by
474            replacePatterns. Suggested by Christian Buchta.
475    
476            * R/textdoccol.R (inspect): Improved formatting.
477    
478    2008-04-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
479    
480            * inst/CITATION: Updated JSS article information.
481    
482            * R/textdoccol.R (setAs): Added coerce method from list to
483            corpus.
484    
485            * R/meta.R (meta): Improved meta data handling.
486    
487    2008-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
488    
489            * R/textdoccol.R (materialize, tmMap): Improvements suggested by
490            Christian Buchta.
491    
492            * inst/CITATION: Added template to include JSS article reference.
493    
494    2008-03-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
495    
496            * R/textdoccol.R (tmMap): Introduced lazy mapping.
497    
498            * R/source.R: Added VectorSource.
499    
500    2008-02-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
501    
502            * man/: Language codes should be in ISO 639-1 format.
503    
504            * R/textdoccol.R (asPlain): Preserve local meta data.
505    
506    2008-01-31  Ingo Feinerer  <h0125130@wu-wien.ac.at>
507    
508            * R/textdoccol.R (writeCorpus): Function for writing a corpus
509            containing plain text documents to disk.
510    
511    2008-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
512    
513            * R/termdocmatrix.R (TermDocMatrix): Ensure that dimnames are
514            always set correctly.
515    
516            * R/textdoccol.R: Set load = TRUE as default for load on demand
517            since in most cases this is the wanted behaviour.
518    
519    2008-01-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
520    
521            * R/: Renamed TextDocCol to Corpus, and Corpus to Content.
522    
523            * DESCRIPTION: Updated Version to 0.3 due to core name changes.
524    
525    2008-01-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
526    
527            * R/meta.R (meta): New function for consistent access to meta data
528            of document collections, repositories, and texts.
529    
530    2008-01-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
531    
532            * R/: Better support for encodings.
533    
534    2008-01-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
535    
536            * R/textdoccol.R (TextDocCol): Fixed bug regarding default reader
537            selection when no reader argument is given.
538    
539    2008-01-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
540    
541            * R/source.R (CSVSource): Now uses read.csv instead of scan
542            internally.
543    
544    2008-01-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
545    
546            * R/reader.R (getReaders): Returns available reader functions.
547    
548            * R/termdocmatrix.R (TermDocMatrix): Set new modular constructor
549            as default.
550    
551    2007-12-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
552    
553            * R/stopwords.R (stopwords): Shortened code, removed codetools
554            variable warnings.
555    
556            * man/: Documentation for showMeta, added an example for tmMap.
557    
558            * inst/doc/tm.Rnw: Updated vignette, comments on MS word reader,
559            some minor typos fixed.
560    
561    2007-12-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
562    
563            * R/aobjects.R (showMeta): Added method for pretty printing a
564            text document's meta data.
565    
566    2007-11-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
567    
568            * R/textdoccol.R (TextDocCol): Better handling of empty
569            arguments.
570    
571            * NAMESPACE: Exported readDOC.
572    
573            * man/completeStems.Rd: Added an example.
574    
575    2007-11-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
576    
577            * R/stopwords.R (stopwords): Look up .dat files at every
578            call. Allows users to modify stopword .dat files interactively.
579    
580    2007-11-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
581    
582            * R/termdocmatrix.R (termFreq): Correct processing of empty
583            documents.
584    
585    2007-10-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
586    
587            * man/: Updated documentation.
588    
589    2007-10-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
590    
591            * R/complete.R (completeStems): Completes (heuristically) word
592            stems.
593    
594            * R/termdocmatrix.R (TermDocMatrix2): New modular
595            constructor.
596    
597            * NAMESPACE: Exported termFreq.
598    
599    2007-10-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
600    
601            * R/reader.R (readDOC): Added MS Word reader (using antiword).
602    
603    2007-10-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
604    
605            * R/weight.R: Weighting functions for TermDocMatrix.
606    
607    2007-10-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
608    
609            * R/termdocmatrix.R (dimnames, colnames, rownames): Wrapper
610            functions for accessing dimension, column, and row names.
611    
612            * R/plot.R (plot.TermDocMatrix): Plot correlations between terms.
613    
614    2007-09-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
615    
616            * man/removePunctuation.Rd: Added documentation. Function also exported to NAMESPACE.
617    
618    2007-08-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
619    
620            * R/fungen.R: Use S4 class for function generators instead of S3 attributes.
621    
622    2007-07-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
623    
624            * R/reader.R (readPDF): Removed manual checks for pdftotext and
625            pdfinfo. The system call gives a warning anyway.
626    
627    2007-07-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
628    
629            * R/textdoccol.R (asPlain): Conversion from
630            StructuredTextDocuments to PlainTextDocuments.
631    
632    2007-07-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
633    
634            * R/termdocmatrix.R: Added convenience methods ("[", nrow, ncol)
635            for accessing term-document matrices.
636    
637            * inst/doc/tm.Rnw: readPDF is only called if pdftotext and pdfinfo
638            are installed.
639    
640    2007-07-17  Ingo Feinerer  <h0125130@wu-wien.ac.at>
641    
642            * R/termdocmatrix.R (TermDocMatrix): Improved efficiency. Kudos to
643            Christian Buchta.
644    
645    2007-07-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
646    
647            * inst/doc/tm.Rnw: Update vignette (readPDF, readHTML, preprocessReut21578XML).
648    
649    2007-07-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
650    
651            * R/reader.R (readHTML): Added very simple HTML reader to obtain StructuredTextDocuments.
652    
653            * R/reader.R (readPDF): Added PDF reader.
654    
655    2007-07-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
656    
657            * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
658    
659            * inst/stopwords/english.dat: Added the term "yes" to stopwords.
660    
661            * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
662    
663            * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
664    
665    2007-07-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
666    
667            * R/distmeasure.R (dissimilarity): Replaced dists call from
668            package cba by new dist call from package proxy.
669    
670    2007-07-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
671    
672            * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
673    
674    2007-06-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
675    
676            * R/termdocmatrix.R: require() uses the quietly option to suppress
677            loading messages.
678    
679    2007-06-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
680    
681            * R/dictionary.R: Added dictionary support.
682    
683    2007-06-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
684    
685            * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
686            documents. This simplifies some functions, e.g., asPlain.
687    
688    2007-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
689    
690            * inst/doc/tm.Rnw: Fixed some typos in vignette.
691    
692    2007-06-03  Ingo Feinerer  <h0125130@wu-wien.ac.at>
693    
694            * R/textdoccol.R (replaceWords): Added method to replace a set of
695            words by a single word. Useful for synonyms.
696    
697    2007-05-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
698    
699            * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
700    
701    2007-05-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
702    
703            * R/termdocmatrix.R (textvector): Small fix for dealing with empty
704            vectors. Thanks to Ariel Maguyon for his error report.
705            (removeSparseTerms): New function to remove columns from a
706            term-document matrix exceeding a sparse factor.
707    
708    2007-05-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
709    
710            * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
711    
712    2007-05-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
713    
714            * man/sFilter.Rd: Corrected documentation on statement format (use
715            '==' instead of '=').
716    
717    2007-05-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
718    
719            * R/aobjects.R (StructuredTextDocument): Inherits from
720            TextDocument.
721    
722    2007-05-04  Ingo Feinerer  <h0125130@wu-wien.ac.at>
723    
724            * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
725            on sparse matrices as proposed by Martin Maechler.
726    
727    2007-04-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
728    
729            * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
730            \pkg{filehash} version makes them deprecated.
731    
732    2007-04-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
733    
734            * R/termdocmatrix.R (textvector): Stemming is now performed before
735            erasing stopwords.
736            (weightMatrix): Adapted to handle sparse matrices.
737            (TermDocMatrix): Sparse matrix is now efficiently built by
738            direct stepwise insertion of row values into it.
739    
740    2007-04-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
741    
742            * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
743            due to ongoing problems. For our purposes the latter is as useful
744            as the replaced package.
745    
746    2007-04-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>
747    
748            * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.
749    
750            * man/TermDocMatrix.Rd: Remove deprecated \code{language} argument.
751    
752    2007-04-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
753    
754            * R/resolve.R (resolveISOCode): Added ISO 639-1 codes for
755            languages with available stopwords.
756    
757    2007-04-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
758    
759            * inst/doc/tm.Rnw: Minor corrections in the vignette.
760    
761    2007-04-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
762    
763            * DESCRIPTION: Update to version 0.2, since a lot of new features
764            have been integrated.
765    
766            * inst/stopwords: Updated existing stopwords and added stopwords
767            for various other languages.
768    
769    2007-04-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
770    
771            * man/: Updated documentation.
772    
773            * Work/testDb.R: Script to test database stuff.
774    
775            * R/: Fixed various database related bugs. Seems to be rather
776            useable now, i.e., consider as alpha status for now.
777    
778    2007-04-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
779    
780            * R/: Fixed some bugs related to database support.
781    
782    2007-04-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
783    
784            * man/: Added a lot of examples to the manuals.
785    
786    2007-04-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
787    
788            * man/: Updated parts of the documentation.
789    
790            * R/textdoccol.R (asPlain): Added conversion from newsgroup
791            documents to plain text documents.
792    
793    2007-04-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
794    
795            * R/textdoccol.R: Finished experimental database support. Not yet
796            intensively tested.
797    
798            * R/source.R: Now each source has a default reader.
799    
800            * R/reader.R: \code{FunctionGenerator} is now an attribute, not a
801            class anymore.
802    
803            * R/plaintextdoc.R: Custom show method for plain text documents.
804    
805            * R/aobjects.R: Added a class for structured text documents.
806    
807            * R/reader.R: Replaced remaining \code{parser} occurrences with
808            \code{reader}.
809    
810            * R/textdoccol.R (summary): Indent tags.
811    
812            * R/textdoccol.R (removePunctuation): Transform method to remove
813            punctuation marks.
814    
815    2007-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
816    
817            * R/textdoccol.R (sFilter): Simplified sFilter significantly by
818            using prescindMeta().
819    
820    2007-03-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
821    
822            * R/textdoccol.R: Improved database support.
823    
824    2007-03-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
825    
826            * R/termdocmatrix.R (TermDocMatrix): Uses sparse matrices.
827    
828            * R/resolve.R (resolveISOcode): Extracts the language from a ISO
829            language code.
830    
831            * R/textdoccol.R (TextDocCol): Refactored several parser arguments
832            into parserControl argument.
833    
834            * R/aobjects.R (TextDocument): Introduced the "Language" slot.
835    
836    2007-03-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
837    
838            * Work/tmDataSetup.R: The datasets acq and crude can now be
839            created on the fly.
840    
841            * R/stopwords.R: Introduced a function returning the stopwords for
842            a given language (English, German and French at the moment)
843    
844            * R/textdoccol.R (stemDoc): Stemming uses Rstem if available,
845            otherwise falls back to Snowball package.
846    
847  2007-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>  2007-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
848    
849          * man/dissimilarity-methods.Rd: Make clear that any method offered          * man/dissimilarity-methods.Rd: Make clear that any method offered

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