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trunk/tm/ChangeLog revision 719, Sun Mar 18 09:24:47 2007 UTC pkg/ChangeLog revision 1153, Thu Nov 17 15:45:31 2011 UTC
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1    2011-11-17  Ingo Feinerer  <feinerer@logic.at>
2    
3            * inst/stopwords/SMART.dat: Add SMART information retrieval system
4            stopwords (which are also used by the MC toolkit).
5    
6            * R/matrix (termFreq): Allow local option \code{bounds$local} to
7            restrict how often a term may appear in each document (generalizes
8            \code{minDocFreq}). Similarly the local option \code{wordLenghts}
9            for word length bounds (generalizes \code{minWordLength}).
10    
11            * R/matrix.R (TermDocumentMatrix.VCorpus): New global option
12            \code{bounds$global} for restricting how often a term is allowed
13            to appear in different documents.
14    
15            * R/matrix.R (TermDocumentMatrix.VCorpus): Distinguish between
16            local options delegated internally to termFreq() and global
17            options which are processed by the term-document matrix
18            constructor itself.
19    
20    2011-11-15  Ingo Feinerer  <feinerer@logic.at>
21    
22            * man/getTokenizers.Rd: Document getTokenizers().
23    
24            * man/tokenizer.Rd: Document MC_tokenizer() and scan_tokenizer().
25    
26    2011-11-04  Ingo Feinerer  <feinerer@logic.at>
27    
28            * man/matrix.Rd: Document as.TermDocumentMatrix.term_frequency.
29    
30            * man/combine.Rd: Document c.term_frequency().
31    
32    2011-10-11  Ingo Feinerer  <feinerer@logic.at>
33    
34            * R/meta.R (`meta<-.Corpus`): Assume that the replacement value
35            can be accessed via '[' and not '[['.
36    
37    2011-08-24  Ingo Feinerer  <feinerer@logic.at>
38    
39            * R/stopwords.R (stopwords): Raise an error if no stopwords are
40            available for requested language. Suggested by Derek M Jones.
41    
42    2011-05-27  Ingo Feinerer  <feinerer@logic.at>
43    
44            * R/weight.R (weightSMART): Implement Cosine and pivoted unique
45            normalization.
46    
47    2011-02-17  Ingo Feinerer  <feinerer@logic.at>
48    
49            * R/transform.R (stemDocument.PlainTextDocument): Use language
50            argument.
51    
52    2011-02-04  Ingo Feinerer  <feinerer@logic.at>
53    
54            * R/source.R: Store strings and connections instead of unevaluated
55            calls.
56    
57    2010-11-26  Ingo Feinerer  <feinerer@logic.at>
58    
59            * R/corpus.R (Corpus): Allow init and exit hooks for readers.
60    
61    2010-10-22  Ingo Feinerer  <feinerer@logic.at>
62    
63            * R/matrix.R (.TermDocumentMatrix): Make Weighting an attribute
64            (instead of a list element).
65    
66    2010-10-16  Ingo Feinerer  <feinerer@logic.at>
67    
68            * R/corpus.R (`[[.VCorpus`, `[[.PCorpus'): Access individual
69            documents by names (fallback to IDs if names are not set).
70    
71    2010-08-25  Ingo Feinerer  <feinerer@logic.at>
72    
73            * R/corpus.R (c.Corpus): When concatenating corpora, the argument
74            \code{recursive} now determines whether existing corpus meta data
75            is used.
76    
77    2010-08-06  Ingo Feinerer  <feinerer@logic.at>
78    
79            * R/transform.R: Removed convert_UTF_8(). Use enc2utf8() instead.
80    
81    2010-06-17  Ingo Feinerer  <feinerer@logic.at>
82    
83            * R/matrix.R (TermDocumentMatrix): If a dictionary is given do not
84            remove terms not occurring in the corpus anymore.
85    
86    2010-06-02  Ingo Feinerer  <feinerer@logic.at>
87    
88            * R/plot.R (Zipf_plot, Heaps_plot): Plotting functions for Zipf's
89            and Heaps' law.
90    
91    2010-05-18  Ingo Feinerer  <feinerer@logic.at>
92    
93            * R/corpus.R (Corpus, PCorpus): Use element names as IDs if
94            provided by a source.
95    
96    2010-04-09  Ingo Feinerer  <feinerer@logic.at>
97    
98            * R/source.R (.Source): Provide document names.
99    
100    2010-04-07  Ingo Feinerer  <feinerer@logic.at>
101    
102            * R/meta.R (`content_or_meta`): Utility function.
103    
104    2010-03-19  Ingo Feinerer  <feinerer@logic.at>
105    
106            * R/reader.R (readReut21578XML, readReut21578XMLasPlain): Extract
107            TOPICS, LEWISSPLIT, CGISPLIT, and OLDID meta tags.
108    
109    2010-03-03  Ingo Feinerer  <feinerer@logic.at>
110    
111            * R/weight.R (weightTfIdf): Added normalization option.
112    
113            * man/tm_tag_score.Rd: Add General Inquirer example for sentiment
114            analysis.
115    
116    2010-02-25  Ingo Feinerer  <feinerer@logic.at>
117    
118            * R/score.R (tm_tag_score): Compute a score from the number of
119            tags matching in a document.
120    
121    2010-02-18  Ingo Feinerer  <feinerer@logic.at>
122    
123            * R/complete.R (stemCompletion): New completion heuristics.
124    
125    2010-02-17  Ingo Feinerer  <feinerer@logic.at>
126    
127            * R/plot.R (plot.TermDocumentMatrix): Memory improvements.
128    
129    2010-02-06  Ingo Feinerer  <feinerer@logic.at>
130    
131            * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
132            setOldClass(c(..., "list")) works.
133    
134    2010-01-22  Ingo Feinerer  <feinerer@logic.at>
135    
136            * R/transform.R (stemDocument.character): In case input is a
137            simple character just delegate to the default Snowball stemmer.
138    
139    2010-01-15  Ingo Feinerer  <feinerer@logic.at>
140    
141            * R/reader.R (readReut21578XML, readRCV1): Extract more meta
142            data.
143    
144    2010-01-12  Ingo Feinerer  <feinerer@logic.at>
145    
146            * R/doc.R (`Content<-`): Be careful with names attribute.
147    
148    2010-01-07  Stefan Theussl  <stefan.theussl@wu.ac.at>
149    
150            * R/source.R (DirSource): Improved implementation especially when
151            handling many (> 1M) files.
152    
153    2009-12-22  Ingo Feinerer  <feinerer@logic.at>
154    
155            * R/source.R (getElem.URISource): Use encoding argument.
156    
157    2009-12-11  Ingo Feinerer  <feinerer@logic.at>
158    
159            * R/doc.R (setOldClass): Register S3 document classes to be
160            recognized by S4 methods.
161    
162    2009-11-25  Ingo Feinerer  <feinerer@logic.at>
163    
164            * R/matrix.R (termFreq): Add option to remove punctuation
165            characters.
166    
167    2009-11-19  Ingo Feinerer  <feinerer@logic.at>
168    
169            * R/matrix.R (c.TermDocumentMatrix): Added combine method for
170            merging multiple term-document matrices.
171    
172    2009-11-17  Ingo Feinerer  <feinerer@logic.at>
173    
174            * R/corpus.R (setOldClass): Register S3 corpus classes to be
175            recognized by S4 methods.
176    
177            * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
178            that CRAN Mac OS X builds do not fail any longer.
179    
180    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
181    
182            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
183            of RWeka:AlphabeticTokenizer() as default.
184    
185    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
186    
187            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
188            caused words at the beginning or the end of a line not to be removed. Do
189            not delete whitespace anymore.
190    
191    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
192    
193            * R/source.R (DirSource): Default to working directory if no path
194            is specified.
195    
196    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
197    
198            * R/source.R (DirSource): Stop on empty directories.
199    
200    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
201    
202            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
203            named documents.
204    
205    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
206    
207            * R/transform.R (removeWords): Improve regular expressions.
208    
209    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
210    
211            * R/meta.R (DublinCore): Allow lower case tags.
212    
213    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
214    
215            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
216            instead of x$children.
217    
218    2009-09-15  Ingo Feinerer  <feinerer@logic.at>
219    
220            * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
221    
222    2009-09-06  Ingo Feinerer  <feinerer@logic.at>
223    
224            * R/: Use S3 instead of S4 class system.
225    
226    2009-08-11  Ingo Feinerer  <feinerer@logic.at>
227    
228            * R/reader.R (readMail): Moved to tm.plugin.mail package.
229    
230    2009-07-04  Ingo Feinerer  <feinerer@logic.at>
231    
232            * R/reader.R (readNewsgroup): Rename to readMail as newsgroup
233            postings are basically e-mails with some extra headers.
234    
235    2009-07-03  Ingo Feinerer  <feinerer@logic.at>
236    
237            * R/transform.R: Move convertMboxEml, removeCitation,
238            removeMultipart, and removeSignature to the tm.plugin.mail package
239            since they are mainly utility functions (for handling e-mails) and
240            not very framework specific.
241    
242    2009-06-28  Ingo Feinerer  <feinerer@logic.at>
243    
244            * man/: Fix documentation.
245    
246    2009-06-26  Ingo Feinerer  <feinerer@logic.at>
247    
248            * R/reader.R (readReut21578XMLasPlain): New reader which returns a
249            plain text document instead of an XML document for texts of the
250            Reuters-21578 dataset.
251    
252            * R/sparse.R: Removed since the slam package is now available on
253            CRAN.
254    
255            * DESCRIPTION (Depends): Add slam package.
256    
257    2009-06-17  Ingo Feinerer  <feinerer@logic.at>
258    
259            * R/transform.R (stemDoc): Fix character(0) handling.
260    
261    2009-06-12  Ingo Feinerer  <feinerer@logic.at>
262    
263            * R/doc.R (show): Pretty print.
264    
265    2009-05-27  Ingo Feinerer  <feinerer@logic.at>
266    
267            * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
268            gracefully.
269    
270    2009-05-13  Ingo Feinerer  <feinerer@logic.at>
271    
272            * R/corpus.R: Make corpus virtual. Implement corpus with standard
273            and permanent storage semantics.
274    
275            * DESCRIPTION: New major release. A *lot* of improvements.
276    
277    2009-05-04   Ingo Feinerer <feinerer@logic.at>
278    
279            * NAMESPACE: Export some simple_triplet_matrix functions.
280    
281    2009-04-28   Ingo Feinerer <feinerer@logic.at>
282    
283            * R/weight.R: Adapt tf-idf to new matrix format.
284    
285    2009-04-27  Ingo Feinerer  <feinerer@logic.at>
286    
287            * R/matrix.R: Create two distinct classes for term-document and
288            document-term matrices.
289    
290    2009-04-26  Ingo Feinerer  <feinerer@logic.at>
291    
292            * R/termdocmatrix.R: No longer use Matrix package. This reduces
293            package start-up time significantly.
294    
295    2009-04-11  Ingo Feinerer  <feinerer@logic.at>
296    
297            * inst/doc/tm.Rnw: Fix code/documentation mismatch.
298    
299    2009-04-04  Ingo Feinerer  <feinerer@logic.at>
300    
301            * R/transform.R (tmReduce): Combine multiple maps into one
302            transformation.
303    
304    2009-04-03  Ingo Feinerer  <feinerer@logic.at>
305    
306            * R/weight.R: Remove weightLogical since it does not return a
307            dgCMatrix.
308    
309            * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
310            or TermDocumentMatrix instead.
311    
312    2009-03-28  Ingo Feinerer  <feinerer@logic.at>
313    
314            * inst/doc/extensions.Rnw: Finished vignette.
315    
316    2009-03-27  Ingo Feinerer  <feinerer@logic.at>
317    
318            * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
319            DocumentTermMatrix representations.
320    
321    2009-03-23  Ingo Feinerer  <feinerer@logic.at>
322    
323            * R/reader.R (readXML): New reader for arbitrary XML files.
324    
325    2009-03-22  Ingo Feinerer  <feinerer@logic.at>
326    
327            * R/source.R (CSVSource): Defunct (use DataframeSource instead).
328            (XMLSource): New XMLSource class for arbitrary XML files.
329            (Source): New slot Vectorized.
330    
331    2009-03-21  Ingo Feinerer  <feinerer@logic.at>
332    
333            * R/reader.R (readTabular): Experimental reader for tabular data
334            structures which can be customized via user-defined mappings.
335    
336            * R/reader.R: Always use UTC time zone.
337    
338            * R/AAA.R (.onLoad): No longer try to start a MPI cluster.
339    
340    2009-03-20  Ingo Feinerer  <feinerer@logic.at>
341    
342            * R/reader.R (readDOC): Options can be passed over to antiword.
343    
344            * R/reader.R (readPDF): Options can be passed over to pdfinfo and
345            pdftotext.
346    
347    2009-03-10  Ingo Feinerer  <feinerer@logic.at>
348    
349            * R/source.R (DirSource): Add pattern and ignore.case arguments
350            which are internally passed over to list.files().
351    
352    2009-03-02  Ingo Feinerer  <feinerer@logic.at>
353    
354            * inst/doc/tm.Rnw: Suppress pointless loading message.
355    
356    2009-01-29  Ingo Feinerer  <feinerer@logic.at>
357    
358            * DESCRIPTION: Speed up package loading (via moving packages not
359            strictly necessary for normal operation to Suggests instead of
360            Depends).
361    
362    2009-01-08  Ingo Feinerer  <feinerer@logic.at>
363    
364            * R/reader.R (readNewsgroup): The date format is now configurable.
365    
366    2008-12-20  Ingo Feinerer  <feinerer@logic.at>
367    
368            * R/preprocess.R (convertMboxEml): Fix off-by-one error.
369    
370    2008-12-16  Ingo Feinerer  <feinerer@logic.at>
371    
372            * R/termdocmatrix.R (TermDocMatrix): Sort row indices.
373    
374    2008-12-06  Ingo Feinerer  <feinerer@logic.at>
375    
376            * R/source.R (DataframeSource): New source class for data frames.
377    
378            * R/source.R: Fixed non-standard call evaluation.
379    
380    2008-11-29  Ingo Feinerer  <feinerer@logic.at>
381    
382            * R/source.R (URISource): New source class for a single document.
383    
384    2008-11-27  Ingo Feinerer  <feinerer@logic.at>
385    
386            * R/source.R: Refactoring.
387    
388    2008-11-25  Ingo Feinerer  <feinerer@logic.at>
389    
390            * R/AAA.R (.onLoad, .Last): Use tryCatch() to handle misconfigured
391            Rmpi installations more gracefully.
392    
393    2008-11-08  Ingo Feinerer  <feinerer@logic.at>
394    
395            * R/source.R (Source): Add Length slot.
396    
397    2008-11-06  Ingo Feinerer  <feinerer@logic.at>
398    
399            * R/AAA.R: Unify duplicated .onLoad function.
400    
401    2008-11-03  Ingo Feinerer  <feinerer@logic.at>
402    
403            * DESCRIPTION (Suggests): Added Rmpi.
404    
405    2008-11-02  Ingo Feinerer  <feinerer@logic.at>
406    
407            * R/source.R (getElem): Fix 'no visible binding' warning.
408    
409            * man/WeightFunction.Rd: Fix signature.
410    
411    2008-08-03  Ingo Feinerer  <feinerer@logic.at>
412    
413            * R/weight.R: Introduce name abbreviations for weighting functions.
414    
415    2008-07-24  Ingo Feinerer  <feinerer@logic.at>
416    
417            * R/AAA.R (.onLoad, .Last): Start and stop MPI cluster.
418    
419            * R/cluster.R: Provide convenience functions for using a MPI
420            cluster.
421    
422            * R/termdocmatrix.R (TermDocMatrix): Use MPI cluster if
423            available.
424    
425            * R/textdoccol.R (tmIndex, tmFilter, tmMap): Use MPI cluster if
426            available.
427    
428    2008-07-17  Ingo Feinerer  <feinerer@logic.at>
429    
430            * R/textdoccol.R (lapply): Removed debug print out.
431    
432    2008-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
433    
434            * R/reader.R (readRCV1): Improved meta data extraction from
435            Reuters Corpus Volume 1 documents.
436    
437    2008-05-25  Ingo Feinerer  <h0125130@wu-wien.ac.at>
438    
439            * R/transform.R: Ensure that all mappings preserve multiline
440            structures.
441    
442    2008-05-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
443    
444            * R/filter.R: Every filter has now an attribute indicating whether
445            it sould be applied to document level (doclevel).
446    
447            * R/textdoccol.R (tmFilter): Set searchFullText as new default
448            filter.
449    
450    2008-04-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
451    
452            * R/transform.R (replacePatterns): Replaced removeWords by
453            replacePatterns. Suggested by Christian Buchta.
454    
455            * R/textdoccol.R (inspect): Improved formatting.
456    
457    2008-04-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
458    
459            * inst/CITATION: Updated JSS article information.
460    
461            * R/textdoccol.R (setAs): Added coerce method from list to
462            corpus.
463    
464            * R/meta.R (meta): Improved meta data handling.
465    
466    2008-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
467    
468            * R/textdoccol.R (materialize, tmMap): Improvements suggested by
469            Christian Buchta.
470    
471            * inst/CITATION: Added template to include JSS article reference.
472    
473    2008-03-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
474    
475            * R/textdoccol.R (tmMap): Introduced lazy mapping.
476    
477            * R/source.R: Added VectorSource.
478    
479    2008-02-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
480    
481            * man/: Language codes should be in ISO 639-1 format.
482    
483            * R/textdoccol.R (asPlain): Preserve local meta data.
484    
485    2008-01-31  Ingo Feinerer  <h0125130@wu-wien.ac.at>
486    
487            * R/textdoccol.R (writeCorpus): Function for writing a corpus
488            containing plain text documents to disk.
489    
490    2008-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
491    
492            * R/termdocmatrix.R (TermDocMatrix): Ensure that dimnames are
493            always set correctly.
494    
495            * R/textdoccol.R: Set load = TRUE as default for load on demand
496            since in most cases this is the wanted behaviour.
497    
498    2008-01-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
499    
500            * R/: Renamed TextDocCol to Corpus, and Corpus to Content.
501    
502            * DESCRIPTION: Updated Version to 0.3 due to core name changes.
503    
504    2008-01-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
505    
506            * R/meta.R (meta): New function for consistent access to meta data
507            of document collections, repositories, and texts.
508    
509    2008-01-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
510    
511            * R/: Better support for encodings.
512    
513    2008-01-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
514    
515            * R/textdoccol.R (TextDocCol): Fixed bug regarding default reader
516            selection when no reader argument is given.
517    
518    2008-01-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
519    
520            * R/source.R (CSVSource): Now uses read.csv instead of scan
521            internally.
522    
523    2008-01-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
524    
525            * R/reader.R (getReaders): Returns available reader functions.
526    
527            * R/termdocmatrix.R (TermDocMatrix): Set new modular constructor
528            as default.
529    
530    2007-12-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
531    
532            * R/stopwords.R (stopwords): Shortened code, removed codetools
533            variable warnings.
534    
535            * man/: Documentation for showMeta, added an example for tmMap.
536    
537            * inst/doc/tm.Rnw: Updated vignette, comments on MS word reader,
538            some minor typos fixed.
539    
540    2007-12-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
541    
542            * R/aobjects.R (showMeta): Added method for pretty printing a
543            text document's meta data.
544    
545    2007-11-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
546    
547            * R/textdoccol.R (TextDocCol): Better handling of empty
548            arguments.
549    
550            * NAMESPACE: Exported readDOC.
551    
552            * man/completeStems.Rd: Added an example.
553    
554    2007-11-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
555    
556            * R/stopwords.R (stopwords): Look up .dat files at every
557            call. Allows users to modify stopword .dat files interactively.
558    
559    2007-11-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
560    
561            * R/termdocmatrix.R (termFreq): Correct processing of empty
562            documents.
563    
564    2007-10-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
565    
566            * man/: Updated documentation.
567    
568    2007-10-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
569    
570            * R/complete.R (completeStems): Completes (heuristically) word
571            stems.
572    
573            * R/termdocmatrix.R (TermDocMatrix2): New modular
574            constructor.
575    
576            * NAMESPACE: Exported termFreq.
577    
578    2007-10-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
579    
580            * R/reader.R (readDOC): Added MS Word reader (using antiword).
581    
582    2007-10-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
583    
584            * R/weight.R: Weighting functions for TermDocMatrix.
585    
586    2007-10-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
587    
588            * R/termdocmatrix.R (dimnames, colnames, rownames): Wrapper
589            functions for accessing dimension, column, and row names.
590    
591            * R/plot.R (plot.TermDocMatrix): Plot correlations between terms.
592    
593    2007-09-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
594    
595            * man/removePunctuation.Rd: Added documentation. Function also exported to NAMESPACE.
596    
597    2007-08-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
598    
599            * R/fungen.R: Use S4 class for function generators instead of S3 attributes.
600    
601    2007-07-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
602    
603            * R/reader.R (readPDF): Removed manual checks for pdftotext and
604            pdfinfo. The system call gives a warning anyway.
605    
606    2007-07-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
607    
608            * R/textdoccol.R (asPlain): Conversion from
609            StructuredTextDocuments to PlainTextDocuments.
610    
611    2007-07-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
612    
613            * R/termdocmatrix.R: Added convenience methods ("[", nrow, ncol)
614            for accessing term-document matrices.
615    
616            * inst/doc/tm.Rnw: readPDF is only called if pdftotext and pdfinfo
617            are installed.
618    
619    2007-07-17  Ingo Feinerer  <h0125130@wu-wien.ac.at>
620    
621            * R/termdocmatrix.R (TermDocMatrix): Improved efficiency. Kudos to
622            Christian Buchta.
623    
624    2007-07-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
625    
626            * inst/doc/tm.Rnw: Update vignette (readPDF, readHTML, preprocessReut21578XML).
627    
628    2007-07-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
629    
630            * R/reader.R (readHTML): Added very simple HTML reader to obtain StructuredTextDocuments.
631    
632            * R/reader.R (readPDF): Added PDF reader.
633    
634    2007-07-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
635    
636            * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
637    
638            * inst/stopwords/english.dat: Added the term "yes" to stopwords.
639    
640            * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
641    
642            * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
643    
644    2007-07-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
645    
646            * R/distmeasure.R (dissimilarity): Replaced dists call from
647            package cba by new dist call from package proxy.
648    
649    2007-07-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
650    
651            * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
652    
653    2007-06-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
654    
655            * R/termdocmatrix.R: require() uses the quietly option to suppress
656            loading messages.
657    
658    2007-06-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
659    
660            * R/dictionary.R: Added dictionary support.
661    
662    2007-06-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
663    
664            * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
665            documents. This simplifies some functions, e.g., asPlain.
666    
667    2007-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
668    
669            * inst/doc/tm.Rnw: Fixed some typos in vignette.
670    
671    2007-06-03  Ingo Feinerer  <h0125130@wu-wien.ac.at>
672    
673            * R/textdoccol.R (replaceWords): Added method to replace a set of
674            words by a single word. Useful for synonyms.
675    
676    2007-05-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
677    
678            * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
679    
680    2007-05-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
681    
682            * R/termdocmatrix.R (textvector): Small fix for dealing with empty
683            vectors. Thanks to Ariel Maguyon for his error report.
684            (removeSparseTerms): New function to remove columns from a
685            term-document matrix exceeding a sparse factor.
686    
687    2007-05-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
688    
689            * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
690    
691    2007-05-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
692    
693            * man/sFilter.Rd: Corrected documentation on statement format (use
694            '==' instead of '=').
695    
696    2007-05-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
697    
698            * R/aobjects.R (StructuredTextDocument): Inherits from
699            TextDocument.
700    
701    2007-05-04  Ingo Feinerer  <h0125130@wu-wien.ac.at>
702    
703            * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
704            on sparse matrices as proposed by Martin Maechler.
705    
706    2007-04-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
707    
708            * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
709            \pkg{filehash} version makes them deprecated.
710    
711    2007-04-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
712    
713            * R/termdocmatrix.R (textvector): Stemming is now performed before
714            erasing stopwords.
715            (weightMatrix): Adapted to handle sparse matrices.
716            (TermDocMatrix): Sparse matrix is now efficiently built by
717            direct stepwise insertion of row values into it.
718    
719    2007-04-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
720    
721            * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
722            due to ongoing problems. For our purposes the latter is as useful
723            as the replaced package.
724    
725    2007-04-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>
726    
727            * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.
728    
729            * man/TermDocMatrix.Rd: Remove deprecated \code{language} argument.
730    
731    2007-04-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
732    
733            * R/resolve.R (resolveISOCode): Added ISO 639-1 codes for
734            languages with available stopwords.
735    
736    2007-04-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
737    
738            * inst/doc/tm.Rnw: Minor corrections in the vignette.
739    
740    2007-04-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
741    
742            * DESCRIPTION: Update to version 0.2, since a lot of new features
743            have been integrated.
744    
745            * inst/stopwords: Updated existing stopwords and added stopwords
746            for various other languages.
747    
748    2007-04-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
749    
750            * man/: Updated documentation.
751    
752            * Work/testDb.R: Script to test database stuff.
753    
754            * R/: Fixed various database related bugs. Seems to be rather
755            useable now, i.e., consider as alpha status for now.
756    
757    2007-04-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
758    
759            * R/: Fixed some bugs related to database support.
760    
761    2007-04-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
762    
763            * man/: Added a lot of examples to the manuals.
764    
765    2007-04-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
766    
767            * man/: Updated parts of the documentation.
768    
769            * R/textdoccol.R (asPlain): Added conversion from newsgroup
770            documents to plain text documents.
771    
772    2007-04-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
773    
774            * R/textdoccol.R: Finished experimental database support. Not yet
775            intensively tested.
776    
777            * R/source.R: Now each source has a default reader.
778    
779            * R/reader.R: \code{FunctionGenerator} is now an attribute, not a
780            class anymore.
781    
782            * R/plaintextdoc.R: Custom show method for plain text documents.
783    
784            * R/aobjects.R: Added a class for structured text documents.
785    
786            * R/reader.R: Replaced remaining \code{parser} occurrences with
787            \code{reader}.
788    
789            * R/textdoccol.R (summary): Indent tags.
790    
791            * R/textdoccol.R (removePunctuation): Transform method to remove
792            punctuation marks.
793    
794    2007-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
795    
796            * R/textdoccol.R (sFilter): Simplified sFilter significantly by
797            using prescindMeta().
798    
799  2007-03-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>  2007-03-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
800    
801          * R/textdoccol.R: Improved database support.          * R/textdoccol.R: Improved database support.

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