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trunk/R/textmin/ChangeLog revision 59, Tue Sep 26 12:24:09 2006 UTC pkg/ChangeLog revision 1063, Fri Apr 9 10:36:39 2010 UTC
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1    2010-04-09  Ingo Feinerer  <feinerer@logic.at>
2    
3            * R/source.R (.Source): Provide document names.
4    
5    2010-04-07  Ingo Feinerer  <feinerer@logic.at>
6    
7            * R/meta.R (`content_or_meta`): Utility function.
8    
9    2010-03-19  Ingo Feinerer  <feinerer@logic.at>
10    
11            * R/reader.R (readReut21578XML, readReut21578XMLasPlain): Extract
12            TOPICS, LEWISSPLIT, CGISPLIT, and OLDID meta tags.
13    
14    2010-03-03  Ingo Feinerer  <feinerer@logic.at>
15    
16            * R/weight.R (weightTfIdf): Added normalization option.
17    
18            * man/tm_tag_score.Rd: Add General Inquirer example for sentiment
19            analysis.
20    
21    2010-02-25  Ingo Feinerer  <feinerer@logic.at>
22    
23            * R/score.R (tm_tag_score): Compute a score from the number of
24            tags matching in a document.
25    
26    2010-02-18  Ingo Feinerer  <feinerer@logic.at>
27    
28            * R/complete.R (stemCompletion): New completion heuristics.
29    
30    2010-02-17  Ingo Feinerer  <feinerer@logic.at>
31    
32            * R/plot.R (plot.TermDocumentMatrix): Memory improvements.
33    
34    2010-02-06  Ingo Feinerer  <feinerer@logic.at>
35    
36            * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
37            setOldClass(c(..., "list")) works.
38    
39    2010-01-22  Ingo Feinerer  <feinerer@logic.at>
40    
41            * R/transform.R (stemDocument.character): In case input is a
42            simple character just delegate to the default Snowball stemmer.
43    
44    2010-01-15  Ingo Feinerer  <feinerer@logic.at>
45    
46            * R/reader.R (readReut21578XML, readRCV1): Extract more meta
47            data.
48    
49    2010-01-12  Ingo Feinerer  <feinerer@logic.at>
50    
51            * R/doc.R (`Content<-`): Be careful with names attribute.
52    
53    2010-01-07  Stefan Theussl  <stefan.theussl@wu.ac.at>
54    
55            * R/source.R (DirSource): Improved implementation especially when
56            handling many (> 1M) files.
57    
58    2009-12-22  Ingo Feinerer  <feinerer@logic.at>
59    
60            * R/source.R (getElem.URISource): Use encoding argument.
61    
62    2009-12-11  Ingo Feinerer  <feinerer@logic.at>
63    
64            * R/doc.R (setOldClass): Register S3 document classes to be
65            recognized by S4 methods.
66    
67    2009-11-25  Ingo Feinerer  <feinerer@logic.at>
68    
69            * R/matrix.R (termFreq): Add option to remove punctuation
70            characters.
71    
72    2009-11-19  Ingo Feinerer  <feinerer@logic.at>
73    
74            * R/matrix.R (c.TermDocumentMatrix): Added combine method for
75            merging multiple term-document matrices.
76    
77    2009-11-17  Ingo Feinerer  <feinerer@logic.at>
78    
79            * R/corpus.R (setOldClass): Register S3 corpus classes to be
80            recognized by S4 methods.
81    
82            * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
83            that CRAN Mac OS X builds do not fail any longer.
84    
85    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
86    
87            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
88            of RWeka:AlphabeticTokenizer() as default.
89    
90    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
91    
92            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
93            caused words at the beginning or the end of a line not to be removed. Do
94            not delete whitespace anymore.
95    
96    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
97    
98            * R/source.R (DirSource): Default to working directory if no path
99            is specified.
100    
101    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
102    
103            * R/source.R (DirSource): Stop on empty directories.
104    
105    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
106    
107            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
108            named documents.
109    
110    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
111    
112            * R/transform.R (removeWords): Improve regular expressions.
113    
114    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
115    
116            * R/meta.R (DublinCore): Allow lower case tags.
117    
118    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
119    
120            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
121            instead of x$children.
122    
123    2009-09-15  Ingo Feinerer  <feinerer@logic.at>
124    
125            * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
126    
127    2009-09-06  Ingo Feinerer  <feinerer@logic.at>
128    
129            * R/: Use S3 instead of S4 class system.
130    
131    2009-08-11  Ingo Feinerer  <feinerer@logic.at>
132    
133            * R/reader.R (readMail): Moved to tm.plugin.mail package.
134    
135    2009-07-04  Ingo Feinerer  <feinerer@logic.at>
136    
137            * R/reader.R (readNewsgroup): Rename to readMail as newsgroup
138            postings are basically e-mails with some extra headers.
139    
140    2009-07-03  Ingo Feinerer  <feinerer@logic.at>
141    
142            * R/transform.R: Move convertMboxEml, removeCitation,
143            removeMultipart, and removeSignature to the tm.plugin.mail package
144            since they are mainly utility functions (for handling e-mails) and
145            not very framework specific.
146    
147    2009-06-28  Ingo Feinerer  <feinerer@logic.at>
148    
149            * man/: Fix documentation.
150    
151    2009-06-26  Ingo Feinerer  <feinerer@logic.at>
152    
153            * R/reader.R (readReut21578XMLasPlain): New reader which returns a
154            plain text document instead of an XML document for texts of the
155            Reuters-21578 dataset.
156    
157            * R/sparse.R: Removed since the slam package is now available on
158            CRAN.
159    
160            * DESCRIPTION (Depends): Add slam package.
161    
162    2009-06-17  Ingo Feinerer  <feinerer@logic.at>
163    
164            * R/transform.R (stemDoc): Fix character(0) handling.
165    
166    2009-06-12  Ingo Feinerer  <feinerer@logic.at>
167    
168            * R/doc.R (show): Pretty print.
169    
170    2009-05-27  Ingo Feinerer  <feinerer@logic.at>
171    
172            * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
173            gracefully.
174    
175    2009-05-13  Ingo Feinerer  <feinerer@logic.at>
176    
177            * R/corpus.R: Make corpus virtual. Implement corpus with standard
178            and permanent storage semantics.
179    
180            * DESCRIPTION: New major release. A *lot* of improvements.
181    
182    2009-05-04   Ingo Feinerer <feinerer@logic.at>
183    
184            * NAMESPACE: Export some simple_triplet_matrix functions.
185    
186    2009-04-28   Ingo Feinerer <feinerer@logic.at>
187    
188            * R/weight.R: Adapt tf-idf to new matrix format.
189    
190    2009-04-27  Ingo Feinerer  <feinerer@logic.at>
191    
192            * R/matrix.R: Create two distinct classes for term-document and
193            document-term matrices.
194    
195    2009-04-26  Ingo Feinerer  <feinerer@logic.at>
196    
197            * R/termdocmatrix.R: No longer use Matrix package. This reduces
198            package start-up time significantly.
199    
200    2009-04-11  Ingo Feinerer  <feinerer@logic.at>
201    
202            * inst/doc/tm.Rnw: Fix code/documentation mismatch.
203    
204    2009-04-04  Ingo Feinerer  <feinerer@logic.at>
205    
206            * R/transform.R (tmReduce): Combine multiple maps into one
207            transformation.
208    
209    2009-04-03  Ingo Feinerer  <feinerer@logic.at>
210    
211            * R/weight.R: Remove weightLogical since it does not return a
212            dgCMatrix.
213    
214            * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
215            or TermDocumentMatrix instead.
216    
217    2009-03-28  Ingo Feinerer  <feinerer@logic.at>
218    
219            * inst/doc/extensions.Rnw: Finished vignette.
220    
221    2009-03-27  Ingo Feinerer  <feinerer@logic.at>
222    
223            * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
224            DocumentTermMatrix representations.
225    
226    2009-03-23  Ingo Feinerer  <feinerer@logic.at>
227    
228            * R/reader.R (readXML): New reader for arbitrary XML files.
229    
230    2009-03-22  Ingo Feinerer  <feinerer@logic.at>
231    
232            * R/source.R (CSVSource): Defunct (use DataframeSource instead).
233            (XMLSource): New XMLSource class for arbitrary XML files.
234            (Source): New slot Vectorized.
235    
236    2009-03-21  Ingo Feinerer  <feinerer@logic.at>
237    
238            * R/reader.R (readTabular): Experimental reader for tabular data
239            structures which can be customized via user-defined mappings.
240    
241            * R/reader.R: Always use UTC time zone.
242    
243            * R/AAA.R (.onLoad): No longer try to start a MPI cluster.
244    
245    2009-03-20  Ingo Feinerer  <feinerer@logic.at>
246    
247            * R/reader.R (readDOC): Options can be passed over to antiword.
248    
249            * R/reader.R (readPDF): Options can be passed over to pdfinfo and
250            pdftotext.
251    
252    2009-03-10  Ingo Feinerer  <feinerer@logic.at>
253    
254            * R/source.R (DirSource): Add pattern and ignore.case arguments
255            which are internally passed over to list.files().
256    
257    2009-03-02  Ingo Feinerer  <feinerer@logic.at>
258    
259            * inst/doc/tm.Rnw: Suppress pointless loading message.
260    
261    2009-01-29  Ingo Feinerer  <feinerer@logic.at>
262    
263            * DESCRIPTION: Speed up package loading (via moving packages not
264            strictly necessary for normal operation to Suggests instead of
265            Depends).
266    
267    2009-01-08  Ingo Feinerer  <feinerer@logic.at>
268    
269            * R/reader.R (readNewsgroup): The date format is now configurable.
270    
271    2008-12-20  Ingo Feinerer  <feinerer@logic.at>
272    
273            * R/preprocess.R (convertMboxEml): Fix off-by-one error.
274    
275    2008-12-16  Ingo Feinerer  <feinerer@logic.at>
276    
277            * R/termdocmatrix.R (TermDocMatrix): Sort row indices.
278    
279    2008-12-06  Ingo Feinerer  <feinerer@logic.at>
280    
281            * R/source.R (DataframeSource): New source class for data frames.
282    
283            * R/source.R: Fixed non-standard call evaluation.
284    
285    2008-11-29  Ingo Feinerer  <feinerer@logic.at>
286    
287            * R/source.R (URISource): New source class for a single document.
288    
289    2008-11-27  Ingo Feinerer  <feinerer@logic.at>
290    
291            * R/source.R: Refactoring.
292    
293    2008-11-25  Ingo Feinerer  <feinerer@logic.at>
294    
295            * R/AAA.R (.onLoad, .Last): Use tryCatch() to handle misconfigured
296            Rmpi installations more gracefully.
297    
298    2008-11-08  Ingo Feinerer  <feinerer@logic.at>
299    
300            * R/source.R (Source): Add Length slot.
301    
302    2008-11-06  Ingo Feinerer  <feinerer@logic.at>
303    
304            * R/AAA.R: Unify duplicated .onLoad function.
305    
306    2008-11-03  Ingo Feinerer  <feinerer@logic.at>
307    
308            * DESCRIPTION (Suggests): Added Rmpi.
309    
310    2008-11-02  Ingo Feinerer  <feinerer@logic.at>
311    
312            * R/source.R (getElem): Fix 'no visible binding' warning.
313    
314            * man/WeightFunction.Rd: Fix signature.
315    
316    2008-08-03  Ingo Feinerer  <feinerer@logic.at>
317    
318            * R/weight.R: Introduce name abbreviations for weighting functions.
319    
320    2008-07-24  Ingo Feinerer  <feinerer@logic.at>
321    
322            * R/AAA.R (.onLoad, .Last): Start and stop MPI cluster.
323    
324            * R/cluster.R: Provide convenience functions for using a MPI
325            cluster.
326    
327            * R/termdocmatrix.R (TermDocMatrix): Use MPI cluster if
328            available.
329    
330            * R/textdoccol.R (tmIndex, tmFilter, tmMap): Use MPI cluster if
331            available.
332    
333    2008-07-17  Ingo Feinerer  <feinerer@logic.at>
334    
335            * R/textdoccol.R (lapply): Removed debug print out.
336    
337    2008-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
338    
339            * R/reader.R (readRCV1): Improved meta data extraction from
340            Reuters Corpus Volume 1 documents.
341    
342    2008-05-25  Ingo Feinerer  <h0125130@wu-wien.ac.at>
343    
344            * R/transform.R: Ensure that all mappings preserve multiline
345            structures.
346    
347    2008-05-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
348    
349            * R/filter.R: Every filter has now an attribute indicating whether
350            it sould be applied to document level (doclevel).
351    
352            * R/textdoccol.R (tmFilter): Set searchFullText as new default
353            filter.
354    
355    2008-04-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
356    
357            * R/transform.R (replacePatterns): Replaced removeWords by
358            replacePatterns. Suggested by Christian Buchta.
359    
360            * R/textdoccol.R (inspect): Improved formatting.
361    
362    2008-04-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
363    
364            * inst/CITATION: Updated JSS article information.
365    
366            * R/textdoccol.R (setAs): Added coerce method from list to
367            corpus.
368    
369            * R/meta.R (meta): Improved meta data handling.
370    
371    2008-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
372    
373            * R/textdoccol.R (materialize, tmMap): Improvements suggested by
374            Christian Buchta.
375    
376            * inst/CITATION: Added template to include JSS article reference.
377    
378    2008-03-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
379    
380            * R/textdoccol.R (tmMap): Introduced lazy mapping.
381    
382            * R/source.R: Added VectorSource.
383    
384    2008-02-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
385    
386            * man/: Language codes should be in ISO 639-1 format.
387    
388            * R/textdoccol.R (asPlain): Preserve local meta data.
389    
390    2008-01-31  Ingo Feinerer  <h0125130@wu-wien.ac.at>
391    
392            * R/textdoccol.R (writeCorpus): Function for writing a corpus
393            containing plain text documents to disk.
394    
395    2008-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
396    
397            * R/termdocmatrix.R (TermDocMatrix): Ensure that dimnames are
398            always set correctly.
399    
400            * R/textdoccol.R: Set load = TRUE as default for load on demand
401            since in most cases this is the wanted behaviour.
402    
403    2008-01-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
404    
405            * R/: Renamed TextDocCol to Corpus, and Corpus to Content.
406    
407            * DESCRIPTION: Updated Version to 0.3 due to core name changes.
408    
409    2008-01-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
410    
411            * R/meta.R (meta): New function for consistent access to meta data
412            of document collections, repositories, and texts.
413    
414    2008-01-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
415    
416            * R/: Better support for encodings.
417    
418    2008-01-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
419    
420            * R/textdoccol.R (TextDocCol): Fixed bug regarding default reader
421            selection when no reader argument is given.
422    
423    2008-01-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
424    
425            * R/source.R (CSVSource): Now uses read.csv instead of scan
426            internally.
427    
428    2008-01-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
429    
430            * R/reader.R (getReaders): Returns available reader functions.
431    
432            * R/termdocmatrix.R (TermDocMatrix): Set new modular constructor
433            as default.
434    
435    2007-12-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
436    
437            * R/stopwords.R (stopwords): Shortened code, removed codetools
438            variable warnings.
439    
440            * man/: Documentation for showMeta, added an example for tmMap.
441    
442            * inst/doc/tm.Rnw: Updated vignette, comments on MS word reader,
443            some minor typos fixed.
444    
445    2007-12-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
446    
447            * R/aobjects.R (showMeta): Added method for pretty printing a
448            text document's meta data.
449    
450    2007-11-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
451    
452            * R/textdoccol.R (TextDocCol): Better handling of empty
453            arguments.
454    
455            * NAMESPACE: Exported readDOC.
456    
457            * man/completeStems.Rd: Added an example.
458    
459    2007-11-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
460    
461            * R/stopwords.R (stopwords): Look up .dat files at every
462            call. Allows users to modify stopword .dat files interactively.
463    
464    2007-11-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
465    
466            * R/termdocmatrix.R (termFreq): Correct processing of empty
467            documents.
468    
469    2007-10-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
470    
471            * man/: Updated documentation.
472    
473    2007-10-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
474    
475            * R/complete.R (completeStems): Completes (heuristically) word
476            stems.
477    
478            * R/termdocmatrix.R (TermDocMatrix2): New modular
479            constructor.
480    
481            * NAMESPACE: Exported termFreq.
482    
483    2007-10-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
484    
485            * R/reader.R (readDOC): Added MS Word reader (using antiword).
486    
487    2007-10-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
488    
489            * R/weight.R: Weighting functions for TermDocMatrix.
490    
491    2007-10-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
492    
493            * R/termdocmatrix.R (dimnames, colnames, rownames): Wrapper
494            functions for accessing dimension, column, and row names.
495    
496            * R/plot.R (plot.TermDocMatrix): Plot correlations between terms.
497    
498    2007-09-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
499    
500            * man/removePunctuation.Rd: Added documentation. Function also exported to NAMESPACE.
501    
502    2007-08-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
503    
504            * R/fungen.R: Use S4 class for function generators instead of S3 attributes.
505    
506    2007-07-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
507    
508            * R/reader.R (readPDF): Removed manual checks for pdftotext and
509            pdfinfo. The system call gives a warning anyway.
510    
511    2007-07-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
512    
513            * R/textdoccol.R (asPlain): Conversion from
514            StructuredTextDocuments to PlainTextDocuments.
515    
516    2007-07-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
517    
518            * R/termdocmatrix.R: Added convenience methods ("[", nrow, ncol)
519            for accessing term-document matrices.
520    
521            * inst/doc/tm.Rnw: readPDF is only called if pdftotext and pdfinfo
522            are installed.
523    
524    2007-07-17  Ingo Feinerer  <h0125130@wu-wien.ac.at>
525    
526            * R/termdocmatrix.R (TermDocMatrix): Improved efficiency. Kudos to
527            Christian Buchta.
528    
529    2007-07-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
530    
531            * inst/doc/tm.Rnw: Update vignette (readPDF, readHTML, preprocessReut21578XML).
532    
533    2007-07-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
534    
535            * R/reader.R (readHTML): Added very simple HTML reader to obtain StructuredTextDocuments.
536    
537            * R/reader.R (readPDF): Added PDF reader.
538    
539    2007-07-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
540    
541            * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
542    
543            * inst/stopwords/english.dat: Added the term "yes" to stopwords.
544    
545            * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
546    
547            * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
548    
549    2007-07-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
550    
551            * R/distmeasure.R (dissimilarity): Replaced dists call from
552            package cba by new dist call from package proxy.
553    
554    2007-07-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
555    
556            * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
557    
558    2007-06-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
559    
560            * R/termdocmatrix.R: require() uses the quietly option to suppress
561            loading messages.
562    
563    2007-06-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
564    
565            * R/dictionary.R: Added dictionary support.
566    
567    2007-06-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
568    
569            * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
570            documents. This simplifies some functions, e.g., asPlain.
571    
572    2007-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
573    
574            * inst/doc/tm.Rnw: Fixed some typos in vignette.
575    
576    2007-06-03  Ingo Feinerer  <h0125130@wu-wien.ac.at>
577    
578            * R/textdoccol.R (replaceWords): Added method to replace a set of
579            words by a single word. Useful for synonyms.
580    
581    2007-05-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
582    
583            * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
584    
585    2007-05-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
586    
587            * R/termdocmatrix.R (textvector): Small fix for dealing with empty
588            vectors. Thanks to Ariel Maguyon for his error report.
589            (removeSparseTerms): New function to remove columns from a
590            term-document matrix exceeding a sparse factor.
591    
592    2007-05-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
593    
594            * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
595    
596    2007-05-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
597    
598            * man/sFilter.Rd: Corrected documentation on statement format (use
599            '==' instead of '=').
600    
601    2007-05-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
602    
603            * R/aobjects.R (StructuredTextDocument): Inherits from
604            TextDocument.
605    
606    2007-05-04  Ingo Feinerer  <h0125130@wu-wien.ac.at>
607    
608            * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
609            on sparse matrices as proposed by Martin Maechler.
610    
611    2007-04-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
612    
613            * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
614            \pkg{filehash} version makes them deprecated.
615    
616    2007-04-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
617    
618            * R/termdocmatrix.R (textvector): Stemming is now performed before
619            erasing stopwords.
620            (weightMatrix): Adapted to handle sparse matrices.
621            (TermDocMatrix): Sparse matrix is now efficiently built by
622            direct stepwise insertion of row values into it.
623    
624    2007-04-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
625    
626            * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
627            due to ongoing problems. For our purposes the latter is as useful
628            as the replaced package.
629    
630    2007-04-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>
631    
632            * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.
633    
634            * man/TermDocMatrix.Rd: Remove deprecated \code{language} argument.
635    
636    2007-04-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
637    
638            * R/resolve.R (resolveISOCode): Added ISO 639-1 codes for
639            languages with available stopwords.
640    
641    2007-04-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
642    
643            * inst/doc/tm.Rnw: Minor corrections in the vignette.
644    
645    2007-04-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
646    
647            * DESCRIPTION: Update to version 0.2, since a lot of new features
648            have been integrated.
649    
650            * inst/stopwords: Updated existing stopwords and added stopwords
651            for various other languages.
652    
653    2007-04-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
654    
655            * man/: Updated documentation.
656    
657            * Work/testDb.R: Script to test database stuff.
658    
659            * R/: Fixed various database related bugs. Seems to be rather
660            useable now, i.e., consider as alpha status for now.
661    
662    2007-04-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
663    
664            * R/: Fixed some bugs related to database support.
665    
666    2007-04-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
667    
668            * man/: Added a lot of examples to the manuals.
669    
670    2007-04-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
671    
672            * man/: Updated parts of the documentation.
673    
674            * R/textdoccol.R (asPlain): Added conversion from newsgroup
675            documents to plain text documents.
676    
677    2007-04-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
678    
679            * R/textdoccol.R: Finished experimental database support. Not yet
680            intensively tested.
681    
682            * R/source.R: Now each source has a default reader.
683    
684            * R/reader.R: \code{FunctionGenerator} is now an attribute, not a
685            class anymore.
686    
687            * R/plaintextdoc.R: Custom show method for plain text documents.
688    
689            * R/aobjects.R: Added a class for structured text documents.
690    
691            * R/reader.R: Replaced remaining \code{parser} occurrences with
692            \code{reader}.
693    
694            * R/textdoccol.R (summary): Indent tags.
695    
696            * R/textdoccol.R (removePunctuation): Transform method to remove
697            punctuation marks.
698    
699    2007-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
700    
701            * R/textdoccol.R (sFilter): Simplified sFilter significantly by
702            using prescindMeta().
703    
704    2007-03-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
705    
706            * R/textdoccol.R: Improved database support.
707    
708    2007-03-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
709    
710            * R/termdocmatrix.R (TermDocMatrix): Uses sparse matrices.
711    
712            * R/resolve.R (resolveISOcode): Extracts the language from a ISO
713            language code.
714    
715            * R/textdoccol.R (TextDocCol): Refactored several parser arguments
716            into parserControl argument.
717    
718            * R/aobjects.R (TextDocument): Introduced the "Language" slot.
719    
720    2007-03-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
721    
722            * Work/tmDataSetup.R: The datasets acq and crude can now be
723            created on the fly.
724    
725            * R/stopwords.R: Introduced a function returning the stopwords for
726            a given language (English, German and French at the moment)
727    
728            * R/textdoccol.R (stemDoc): Stemming uses Rstem if available,
729            otherwise falls back to Snowball package.
730    
731    2007-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
732    
733            * man/dissimilarity-methods.Rd: Make clear that any method offered
734            by "dists" from package "cba" can be used.
735    
736    2007-01-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
737    
738            * inst/doc/tm.Rnw: Fixed quotes-appearing-as-boxes-bug according
739            to Kurt's latex suggestion. Removed points and underscores in
740            variable names for consistent naming.
741    
742            * DESCRIPTION: Update to version 0.1-2.
743    
744            * man/TextRepository.Rd: Fixed bug in documentation.
745    
746    2007-01-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
747    
748            * DESCRIPTION: Update to version 0.1-1.
749    
750    2007-01-09  Ingo Feinerer  <h0125130@wu-wien.ac.at>
751    
752            * R/textdoccol.R (stemDoc): Use Rstem::wordStem instead of
753            wordStem.
754    
755    2007-01-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
756    
757            * R/: Changes due to Kurt's review.
758    
759    2006-12-31  Ingo Feinerer  <h0125130@wu-wien.ac.at>
760    
761            * R/: Implemented improvements based upon comments by David
762            Meyer.
763    
764    2006-12-17  Ingo Feinerer  <h0125130@wu-wien.ac.at>
765    
766            * inst/doc/: Rewrote vignette.
767    
768            * man/: Improved documentation.
769    
770    2006-12-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
771    
772            * man/: Updated documentation.
773    
774            * DESCRIPTION: Changed package name to "tm". Updated version to
775            0.1 for first CRAN release.
776    
777            * inst/texts/gmane.comp.lang.r.general.mbox: mbox Gmane R mailing
778            list archive example.
779    
780            * inst/texts/gmane.comp.lang.r.gr.rdf: RSS Gmane R mailing list
781            archive example.
782    
783            * R/preprocess.R (convert_mbox_eml): A simple e-mail converter
784            from (several mails per box) mbox format to (single mail per file)
785            eml format.
786    
787    2006-12-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
788    
789            * data/crude.rda: Rebuilt.
790    
791            * data/acq.rda: Rebuilt.
792    
793            * R/reader.R: Factored out reader and parser methods from
794            textdoccol.R.
795    
796            * R/source.R: Factored out Source methods from aobjects.R and
797            textdoccol.R.
798            (GmaneRSource): Encapsulates Gmane R mailing list archive RSS
799            feeds.
800    
801            * R/textdoccol.R (DirSource): Added support for recursive
802            traversal of directories.
803    
804    2006-12-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
805    
806            * R/textdoccol.R ([[): Loads the document corpus automatically
807            into memory upon access.
808            (tm_transform, tm_filter): Removed several checks whether the
809            document is already loaded ([[ ensures this now).
810            (gmane_r_reader): Reader for RSS feeds as provided by the Gmane R
811            mailing list archive.
812    
813    2006-12-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
814    
815            * R/aobjects.R (TextDocument): Is now a virtual class.
816            (Source): Is now a virtual class.
817    
818    2006-12-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
819    
820            * R/textdoccol.R (c): Support for an arbitrary number of document
821            collections.
822    
823    2006-11-26  Ingo Feinerer  <h0125130@wu-wien.ac.at>
824    
825            * R/textrepo.R: Updated TextRepository (constructor), append_elem,
826            append_meta and remove_meta.
827    
828            * R/textdoccol.R: Removed modify_metadata method.
829    
830            * R/textrepo.R: Removed modify_metadata method.
831    
832            * R/textdoccol.R (remove_meta): Supports removal of document
833            collection metadata and document (= in data frame) metadata.
834    
835    2006-11-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
836    
837            * R/textdoccol.R (append_doc): Bug fix for handling empty metadata.
838    
839            * data/crude.rda: Rebuilt.
840    
841            * data/acq.rda: Rebuilt.
842    
843            * inst/doc/textmin.Rnw: Updated vignette to reflect code changes.
844    
845            * R/textdoccol.R ([): Bug fix for subsetting a document
846            collection's data frame.
847    
848    2006-11-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
849    
850            * R/textdoccol.R: Bug fixes in s_filter. Added full query support
851            to s_filter.
852    
853            * R/textdoccol.R: Local text documents' metadata can now be copied
854            to a document collection's data frame with prescind_meta.
855    
856    2006-11-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
857    
858            * R/: Text documents' slot metadata is now accessible in s_filter.
859    
860            * R/: Rewrote s_filter function (has still some restrictions).
861    
862    2006-11-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>
863    
864            * R/: Various fixes in handling metadata.
865    
866            * R/: Added update mechanism for text document collections.
867    
868    2006-11-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
869    
870            * R/: Merging of document collections now creates a binary tree
871            for reconstructing merged document collections.
872    
873            * R/: Redesign of metadata for document collections.
874    
875    2006-11-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
876    
877            * R/: Messages now use \code{ngettext}.
878    
879    2006-11-03  Ingo Feinerer  <h0125130@wu-wien.ac.at>
880    
881            * R/: Added functions for modifying and removing metadata.
882    
883    2006-11-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
884    
885            * man/: Updated some documentation.
886    
887            * R/: Corrected some connection issues.
888    
889            * inst/doc: Worked on the vignette.
890    
891    2006-10-31  Ingo Feinerer  <h0125130@wu-wien.ac.at>
892    
893            * inst/: Added texts and started vignette.
894    
895            * R/: Final changes based upon David's comments.
896    
897    2006-10-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
898    
899            * NAMESPACE: Corrected exports (generic methods need exportMethods
900            directives!).
901    
902    2006-10-26  Ingo Feinerer  <h0125130@wu-wien.ac.at>
903    
904            * R/: Modified the TextDocCol constructur and various parsers. It
905            is now modular and supports various file formats via plugins (see
906            the new "Source" class).
907    
908    2006-10-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
909    
910            * man/: Revised documentation after previous code changes.
911    
912    2006-10-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
913    
914            * R/: Remaining changes as discussed with David.
915    
916    2006-10-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
917    
918            * R/: Some changes as suggested by David. The rest will follow
919            within the next days.
920    
921  2006-09-26  Ingo Feinerer  <h0125130@wu-wien.ac.at>  2006-09-26  Ingo Feinerer  <h0125130@wu-wien.ac.at>
922    
923          * man/: Finished documentation.          * man/: Finished documentation.

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