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trunk/tm/ChangeLog revision 708, Mon Jan 22 10:34:12 2007 UTC pkg/ChangeLog revision 1139, Wed Aug 24 15:21:02 2011 UTC
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1    2011-08-24  Ingo Feinerer  <feinerer@logic.at>
2    
3            * R/stopwords.R (stopwords): Raise an error if no stopwords are
4            available for requested language. Suggested by Derek M Jones.
5    
6    2011-05-27  Ingo Feinerer  <feinerer@logic.at>
7    
8            * R/weight.R (weightSMART): Implement Cosine and pivoted unique
9            normalization.
10    
11    2011-02-17  Ingo Feinerer  <feinerer@logic.at>
12    
13            * R/transform.R (stemDocument.PlainTextDocument): Use language
14            argument.
15    
16    2011-02-04  Ingo Feinerer  <feinerer@logic.at>
17    
18            * R/source.R: Store strings and connections instead of unevaluated
19            calls.
20    
21    2010-11-26  Ingo Feinerer  <feinerer@logic.at>
22    
23            * R/corpus.R (Corpus): Allow init and exit hooks for readers.
24    
25    2010-10-22  Ingo Feinerer  <feinerer@logic.at>
26    
27            * R/matrix.R (.TermDocumentMatrix): Make Weighting an attribute
28            (instead of a list element).
29    
30    2010-10-16  Ingo Feinerer  <feinerer@logic.at>
31    
32            * R/corpus.R (`[[.VCorpus`, `[[.PCorpus'): Access individual
33            documents by names (fallback to IDs if names are not set).
34    
35    2010-08-25  Ingo Feinerer  <feinerer@logic.at>
36    
37            * R/corpus.R (c.Corpus): When concatenating corpora, the argument
38            \code{recursive} now determines whether existing corpus meta data
39            is used.
40    
41    2010-08-06  Ingo Feinerer  <feinerer@logic.at>
42    
43            * R/transform.R: Removed convert_UTF_8(). Use enc2utf8() instead.
44    
45    2010-06-17  Ingo Feinerer  <feinerer@logic.at>
46    
47            * R/matrix.R (TermDocumentMatrix): If a dictionary is given do not
48            remove terms not occurring in the corpus anymore.
49    
50    2010-06-02  Ingo Feinerer  <feinerer@logic.at>
51    
52            * R/plot.R (Zipf_plot, Heaps_plot): Plotting functions for Zipf's
53            and Heaps' law.
54    
55    2010-05-18  Ingo Feinerer  <feinerer@logic.at>
56    
57            * R/corpus.R (Corpus, PCorpus): Use element names as IDs if
58            provided by a source.
59    
60    2010-04-09  Ingo Feinerer  <feinerer@logic.at>
61    
62            * R/source.R (.Source): Provide document names.
63    
64    2010-04-07  Ingo Feinerer  <feinerer@logic.at>
65    
66            * R/meta.R (`content_or_meta`): Utility function.
67    
68    2010-03-19  Ingo Feinerer  <feinerer@logic.at>
69    
70            * R/reader.R (readReut21578XML, readReut21578XMLasPlain): Extract
71            TOPICS, LEWISSPLIT, CGISPLIT, and OLDID meta tags.
72    
73    2010-03-03  Ingo Feinerer  <feinerer@logic.at>
74    
75            * R/weight.R (weightTfIdf): Added normalization option.
76    
77            * man/tm_tag_score.Rd: Add General Inquirer example for sentiment
78            analysis.
79    
80    2010-02-25  Ingo Feinerer  <feinerer@logic.at>
81    
82            * R/score.R (tm_tag_score): Compute a score from the number of
83            tags matching in a document.
84    
85    2010-02-18  Ingo Feinerer  <feinerer@logic.at>
86    
87            * R/complete.R (stemCompletion): New completion heuristics.
88    
89    2010-02-17  Ingo Feinerer  <feinerer@logic.at>
90    
91            * R/plot.R (plot.TermDocumentMatrix): Memory improvements.
92    
93    2010-02-06  Ingo Feinerer  <feinerer@logic.at>
94    
95            * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
96            setOldClass(c(..., "list")) works.
97    
98    2010-01-22  Ingo Feinerer  <feinerer@logic.at>
99    
100            * R/transform.R (stemDocument.character): In case input is a
101            simple character just delegate to the default Snowball stemmer.
102    
103    2010-01-15  Ingo Feinerer  <feinerer@logic.at>
104    
105            * R/reader.R (readReut21578XML, readRCV1): Extract more meta
106            data.
107    
108    2010-01-12  Ingo Feinerer  <feinerer@logic.at>
109    
110            * R/doc.R (`Content<-`): Be careful with names attribute.
111    
112    2010-01-07  Stefan Theussl  <stefan.theussl@wu.ac.at>
113    
114            * R/source.R (DirSource): Improved implementation especially when
115            handling many (> 1M) files.
116    
117    2009-12-22  Ingo Feinerer  <feinerer@logic.at>
118    
119            * R/source.R (getElem.URISource): Use encoding argument.
120    
121    2009-12-11  Ingo Feinerer  <feinerer@logic.at>
122    
123            * R/doc.R (setOldClass): Register S3 document classes to be
124            recognized by S4 methods.
125    
126    2009-11-25  Ingo Feinerer  <feinerer@logic.at>
127    
128            * R/matrix.R (termFreq): Add option to remove punctuation
129            characters.
130    
131    2009-11-19  Ingo Feinerer  <feinerer@logic.at>
132    
133            * R/matrix.R (c.TermDocumentMatrix): Added combine method for
134            merging multiple term-document matrices.
135    
136    2009-11-17  Ingo Feinerer  <feinerer@logic.at>
137    
138            * R/corpus.R (setOldClass): Register S3 corpus classes to be
139            recognized by S4 methods.
140    
141            * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
142            that CRAN Mac OS X builds do not fail any longer.
143    
144    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
145    
146            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
147            of RWeka:AlphabeticTokenizer() as default.
148    
149    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
150    
151            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
152            caused words at the beginning or the end of a line not to be removed. Do
153            not delete whitespace anymore.
154    
155    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
156    
157            * R/source.R (DirSource): Default to working directory if no path
158            is specified.
159    
160    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
161    
162            * R/source.R (DirSource): Stop on empty directories.
163    
164    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
165    
166            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
167            named documents.
168    
169    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
170    
171            * R/transform.R (removeWords): Improve regular expressions.
172    
173    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
174    
175            * R/meta.R (DublinCore): Allow lower case tags.
176    
177    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
178    
179            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
180            instead of x$children.
181    
182    2009-09-15  Ingo Feinerer  <feinerer@logic.at>
183    
184            * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
185    
186    2009-09-06  Ingo Feinerer  <feinerer@logic.at>
187    
188            * R/: Use S3 instead of S4 class system.
189    
190    2009-08-11  Ingo Feinerer  <feinerer@logic.at>
191    
192            * R/reader.R (readMail): Moved to tm.plugin.mail package.
193    
194    2009-07-04  Ingo Feinerer  <feinerer@logic.at>
195    
196            * R/reader.R (readNewsgroup): Rename to readMail as newsgroup
197            postings are basically e-mails with some extra headers.
198    
199    2009-07-03  Ingo Feinerer  <feinerer@logic.at>
200    
201            * R/transform.R: Move convertMboxEml, removeCitation,
202            removeMultipart, and removeSignature to the tm.plugin.mail package
203            since they are mainly utility functions (for handling e-mails) and
204            not very framework specific.
205    
206    2009-06-28  Ingo Feinerer  <feinerer@logic.at>
207    
208            * man/: Fix documentation.
209    
210    2009-06-26  Ingo Feinerer  <feinerer@logic.at>
211    
212            * R/reader.R (readReut21578XMLasPlain): New reader which returns a
213            plain text document instead of an XML document for texts of the
214            Reuters-21578 dataset.
215    
216            * R/sparse.R: Removed since the slam package is now available on
217            CRAN.
218    
219            * DESCRIPTION (Depends): Add slam package.
220    
221    2009-06-17  Ingo Feinerer  <feinerer@logic.at>
222    
223            * R/transform.R (stemDoc): Fix character(0) handling.
224    
225    2009-06-12  Ingo Feinerer  <feinerer@logic.at>
226    
227            * R/doc.R (show): Pretty print.
228    
229    2009-05-27  Ingo Feinerer  <feinerer@logic.at>
230    
231            * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
232            gracefully.
233    
234    2009-05-13  Ingo Feinerer  <feinerer@logic.at>
235    
236            * R/corpus.R: Make corpus virtual. Implement corpus with standard
237            and permanent storage semantics.
238    
239            * DESCRIPTION: New major release. A *lot* of improvements.
240    
241    2009-05-04   Ingo Feinerer <feinerer@logic.at>
242    
243            * NAMESPACE: Export some simple_triplet_matrix functions.
244    
245    2009-04-28   Ingo Feinerer <feinerer@logic.at>
246    
247            * R/weight.R: Adapt tf-idf to new matrix format.
248    
249    2009-04-27  Ingo Feinerer  <feinerer@logic.at>
250    
251            * R/matrix.R: Create two distinct classes for term-document and
252            document-term matrices.
253    
254    2009-04-26  Ingo Feinerer  <feinerer@logic.at>
255    
256            * R/termdocmatrix.R: No longer use Matrix package. This reduces
257            package start-up time significantly.
258    
259    2009-04-11  Ingo Feinerer  <feinerer@logic.at>
260    
261            * inst/doc/tm.Rnw: Fix code/documentation mismatch.
262    
263    2009-04-04  Ingo Feinerer  <feinerer@logic.at>
264    
265            * R/transform.R (tmReduce): Combine multiple maps into one
266            transformation.
267    
268    2009-04-03  Ingo Feinerer  <feinerer@logic.at>
269    
270            * R/weight.R: Remove weightLogical since it does not return a
271            dgCMatrix.
272    
273            * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
274            or TermDocumentMatrix instead.
275    
276    2009-03-28  Ingo Feinerer  <feinerer@logic.at>
277    
278            * inst/doc/extensions.Rnw: Finished vignette.
279    
280    2009-03-27  Ingo Feinerer  <feinerer@logic.at>
281    
282            * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
283            DocumentTermMatrix representations.
284    
285    2009-03-23  Ingo Feinerer  <feinerer@logic.at>
286    
287            * R/reader.R (readXML): New reader for arbitrary XML files.
288    
289    2009-03-22  Ingo Feinerer  <feinerer@logic.at>
290    
291            * R/source.R (CSVSource): Defunct (use DataframeSource instead).
292            (XMLSource): New XMLSource class for arbitrary XML files.
293            (Source): New slot Vectorized.
294    
295    2009-03-21  Ingo Feinerer  <feinerer@logic.at>
296    
297            * R/reader.R (readTabular): Experimental reader for tabular data
298            structures which can be customized via user-defined mappings.
299    
300            * R/reader.R: Always use UTC time zone.
301    
302            * R/AAA.R (.onLoad): No longer try to start a MPI cluster.
303    
304    2009-03-20  Ingo Feinerer  <feinerer@logic.at>
305    
306            * R/reader.R (readDOC): Options can be passed over to antiword.
307    
308            * R/reader.R (readPDF): Options can be passed over to pdfinfo and
309            pdftotext.
310    
311    2009-03-10  Ingo Feinerer  <feinerer@logic.at>
312    
313            * R/source.R (DirSource): Add pattern and ignore.case arguments
314            which are internally passed over to list.files().
315    
316    2009-03-02  Ingo Feinerer  <feinerer@logic.at>
317    
318            * inst/doc/tm.Rnw: Suppress pointless loading message.
319    
320    2009-01-29  Ingo Feinerer  <feinerer@logic.at>
321    
322            * DESCRIPTION: Speed up package loading (via moving packages not
323            strictly necessary for normal operation to Suggests instead of
324            Depends).
325    
326    2009-01-08  Ingo Feinerer  <feinerer@logic.at>
327    
328            * R/reader.R (readNewsgroup): The date format is now configurable.
329    
330    2008-12-20  Ingo Feinerer  <feinerer@logic.at>
331    
332            * R/preprocess.R (convertMboxEml): Fix off-by-one error.
333    
334    2008-12-16  Ingo Feinerer  <feinerer@logic.at>
335    
336            * R/termdocmatrix.R (TermDocMatrix): Sort row indices.
337    
338    2008-12-06  Ingo Feinerer  <feinerer@logic.at>
339    
340            * R/source.R (DataframeSource): New source class for data frames.
341    
342            * R/source.R: Fixed non-standard call evaluation.
343    
344    2008-11-29  Ingo Feinerer  <feinerer@logic.at>
345    
346            * R/source.R (URISource): New source class for a single document.
347    
348    2008-11-27  Ingo Feinerer  <feinerer@logic.at>
349    
350            * R/source.R: Refactoring.
351    
352    2008-11-25  Ingo Feinerer  <feinerer@logic.at>
353    
354            * R/AAA.R (.onLoad, .Last): Use tryCatch() to handle misconfigured
355            Rmpi installations more gracefully.
356    
357    2008-11-08  Ingo Feinerer  <feinerer@logic.at>
358    
359            * R/source.R (Source): Add Length slot.
360    
361    2008-11-06  Ingo Feinerer  <feinerer@logic.at>
362    
363            * R/AAA.R: Unify duplicated .onLoad function.
364    
365    2008-11-03  Ingo Feinerer  <feinerer@logic.at>
366    
367            * DESCRIPTION (Suggests): Added Rmpi.
368    
369    2008-11-02  Ingo Feinerer  <feinerer@logic.at>
370    
371            * R/source.R (getElem): Fix 'no visible binding' warning.
372    
373            * man/WeightFunction.Rd: Fix signature.
374    
375    2008-08-03  Ingo Feinerer  <feinerer@logic.at>
376    
377            * R/weight.R: Introduce name abbreviations for weighting functions.
378    
379    2008-07-24  Ingo Feinerer  <feinerer@logic.at>
380    
381            * R/AAA.R (.onLoad, .Last): Start and stop MPI cluster.
382    
383            * R/cluster.R: Provide convenience functions for using a MPI
384            cluster.
385    
386            * R/termdocmatrix.R (TermDocMatrix): Use MPI cluster if
387            available.
388    
389            * R/textdoccol.R (tmIndex, tmFilter, tmMap): Use MPI cluster if
390            available.
391    
392    2008-07-17  Ingo Feinerer  <feinerer@logic.at>
393    
394            * R/textdoccol.R (lapply): Removed debug print out.
395    
396    2008-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
397    
398            * R/reader.R (readRCV1): Improved meta data extraction from
399            Reuters Corpus Volume 1 documents.
400    
401    2008-05-25  Ingo Feinerer  <h0125130@wu-wien.ac.at>
402    
403            * R/transform.R: Ensure that all mappings preserve multiline
404            structures.
405    
406    2008-05-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
407    
408            * R/filter.R: Every filter has now an attribute indicating whether
409            it sould be applied to document level (doclevel).
410    
411            * R/textdoccol.R (tmFilter): Set searchFullText as new default
412            filter.
413    
414    2008-04-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
415    
416            * R/transform.R (replacePatterns): Replaced removeWords by
417            replacePatterns. Suggested by Christian Buchta.
418    
419            * R/textdoccol.R (inspect): Improved formatting.
420    
421    2008-04-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
422    
423            * inst/CITATION: Updated JSS article information.
424    
425            * R/textdoccol.R (setAs): Added coerce method from list to
426            corpus.
427    
428            * R/meta.R (meta): Improved meta data handling.
429    
430    2008-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
431    
432            * R/textdoccol.R (materialize, tmMap): Improvements suggested by
433            Christian Buchta.
434    
435            * inst/CITATION: Added template to include JSS article reference.
436    
437    2008-03-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
438    
439            * R/textdoccol.R (tmMap): Introduced lazy mapping.
440    
441            * R/source.R: Added VectorSource.
442    
443    2008-02-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
444    
445            * man/: Language codes should be in ISO 639-1 format.
446    
447            * R/textdoccol.R (asPlain): Preserve local meta data.
448    
449    2008-01-31  Ingo Feinerer  <h0125130@wu-wien.ac.at>
450    
451            * R/textdoccol.R (writeCorpus): Function for writing a corpus
452            containing plain text documents to disk.
453    
454    2008-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
455    
456            * R/termdocmatrix.R (TermDocMatrix): Ensure that dimnames are
457            always set correctly.
458    
459            * R/textdoccol.R: Set load = TRUE as default for load on demand
460            since in most cases this is the wanted behaviour.
461    
462    2008-01-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
463    
464            * R/: Renamed TextDocCol to Corpus, and Corpus to Content.
465    
466            * DESCRIPTION: Updated Version to 0.3 due to core name changes.
467    
468    2008-01-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
469    
470            * R/meta.R (meta): New function for consistent access to meta data
471            of document collections, repositories, and texts.
472    
473    2008-01-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
474    
475            * R/: Better support for encodings.
476    
477    2008-01-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
478    
479            * R/textdoccol.R (TextDocCol): Fixed bug regarding default reader
480            selection when no reader argument is given.
481    
482    2008-01-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
483    
484            * R/source.R (CSVSource): Now uses read.csv instead of scan
485            internally.
486    
487    2008-01-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
488    
489            * R/reader.R (getReaders): Returns available reader functions.
490    
491            * R/termdocmatrix.R (TermDocMatrix): Set new modular constructor
492            as default.
493    
494    2007-12-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
495    
496            * R/stopwords.R (stopwords): Shortened code, removed codetools
497            variable warnings.
498    
499            * man/: Documentation for showMeta, added an example for tmMap.
500    
501            * inst/doc/tm.Rnw: Updated vignette, comments on MS word reader,
502            some minor typos fixed.
503    
504    2007-12-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
505    
506            * R/aobjects.R (showMeta): Added method for pretty printing a
507            text document's meta data.
508    
509    2007-11-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
510    
511            * R/textdoccol.R (TextDocCol): Better handling of empty
512            arguments.
513    
514            * NAMESPACE: Exported readDOC.
515    
516            * man/completeStems.Rd: Added an example.
517    
518    2007-11-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
519    
520            * R/stopwords.R (stopwords): Look up .dat files at every
521            call. Allows users to modify stopword .dat files interactively.
522    
523    2007-11-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
524    
525            * R/termdocmatrix.R (termFreq): Correct processing of empty
526            documents.
527    
528    2007-10-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
529    
530            * man/: Updated documentation.
531    
532    2007-10-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
533    
534            * R/complete.R (completeStems): Completes (heuristically) word
535            stems.
536    
537            * R/termdocmatrix.R (TermDocMatrix2): New modular
538            constructor.
539    
540            * NAMESPACE: Exported termFreq.
541    
542    2007-10-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
543    
544            * R/reader.R (readDOC): Added MS Word reader (using antiword).
545    
546    2007-10-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
547    
548            * R/weight.R: Weighting functions for TermDocMatrix.
549    
550    2007-10-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
551    
552            * R/termdocmatrix.R (dimnames, colnames, rownames): Wrapper
553            functions for accessing dimension, column, and row names.
554    
555            * R/plot.R (plot.TermDocMatrix): Plot correlations between terms.
556    
557    2007-09-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
558    
559            * man/removePunctuation.Rd: Added documentation. Function also exported to NAMESPACE.
560    
561    2007-08-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
562    
563            * R/fungen.R: Use S4 class for function generators instead of S3 attributes.
564    
565    2007-07-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
566    
567            * R/reader.R (readPDF): Removed manual checks for pdftotext and
568            pdfinfo. The system call gives a warning anyway.
569    
570    2007-07-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
571    
572            * R/textdoccol.R (asPlain): Conversion from
573            StructuredTextDocuments to PlainTextDocuments.
574    
575    2007-07-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
576    
577            * R/termdocmatrix.R: Added convenience methods ("[", nrow, ncol)
578            for accessing term-document matrices.
579    
580            * inst/doc/tm.Rnw: readPDF is only called if pdftotext and pdfinfo
581            are installed.
582    
583    2007-07-17  Ingo Feinerer  <h0125130@wu-wien.ac.at>
584    
585            * R/termdocmatrix.R (TermDocMatrix): Improved efficiency. Kudos to
586            Christian Buchta.
587    
588    2007-07-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
589    
590            * inst/doc/tm.Rnw: Update vignette (readPDF, readHTML, preprocessReut21578XML).
591    
592    2007-07-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
593    
594            * R/reader.R (readHTML): Added very simple HTML reader to obtain StructuredTextDocuments.
595    
596            * R/reader.R (readPDF): Added PDF reader.
597    
598    2007-07-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
599    
600            * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
601    
602            * inst/stopwords/english.dat: Added the term "yes" to stopwords.
603    
604            * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
605    
606            * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
607    
608    2007-07-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
609    
610            * R/distmeasure.R (dissimilarity): Replaced dists call from
611            package cba by new dist call from package proxy.
612    
613    2007-07-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
614    
615            * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
616    
617    2007-06-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
618    
619            * R/termdocmatrix.R: require() uses the quietly option to suppress
620            loading messages.
621    
622    2007-06-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
623    
624            * R/dictionary.R: Added dictionary support.
625    
626    2007-06-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
627    
628            * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
629            documents. This simplifies some functions, e.g., asPlain.
630    
631    2007-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
632    
633            * inst/doc/tm.Rnw: Fixed some typos in vignette.
634    
635    2007-06-03  Ingo Feinerer  <h0125130@wu-wien.ac.at>
636    
637            * R/textdoccol.R (replaceWords): Added method to replace a set of
638            words by a single word. Useful for synonyms.
639    
640    2007-05-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
641    
642            * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
643    
644    2007-05-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
645    
646            * R/termdocmatrix.R (textvector): Small fix for dealing with empty
647            vectors. Thanks to Ariel Maguyon for his error report.
648            (removeSparseTerms): New function to remove columns from a
649            term-document matrix exceeding a sparse factor.
650    
651    2007-05-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
652    
653            * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
654    
655    2007-05-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
656    
657            * man/sFilter.Rd: Corrected documentation on statement format (use
658            '==' instead of '=').
659    
660    2007-05-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
661    
662            * R/aobjects.R (StructuredTextDocument): Inherits from
663            TextDocument.
664    
665    2007-05-04  Ingo Feinerer  <h0125130@wu-wien.ac.at>
666    
667            * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
668            on sparse matrices as proposed by Martin Maechler.
669    
670    2007-04-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
671    
672            * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
673            \pkg{filehash} version makes them deprecated.
674    
675    2007-04-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
676    
677            * R/termdocmatrix.R (textvector): Stemming is now performed before
678            erasing stopwords.
679            (weightMatrix): Adapted to handle sparse matrices.
680            (TermDocMatrix): Sparse matrix is now efficiently built by
681            direct stepwise insertion of row values into it.
682    
683    2007-04-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
684    
685            * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
686            due to ongoing problems. For our purposes the latter is as useful
687            as the replaced package.
688    
689    2007-04-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>
690    
691            * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.
692    
693            * man/TermDocMatrix.Rd: Remove deprecated \code{language} argument.
694    
695    2007-04-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
696    
697            * R/resolve.R (resolveISOCode): Added ISO 639-1 codes for
698            languages with available stopwords.
699    
700    2007-04-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
701    
702            * inst/doc/tm.Rnw: Minor corrections in the vignette.
703    
704    2007-04-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
705    
706            * DESCRIPTION: Update to version 0.2, since a lot of new features
707            have been integrated.
708    
709            * inst/stopwords: Updated existing stopwords and added stopwords
710            for various other languages.
711    
712    2007-04-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
713    
714            * man/: Updated documentation.
715    
716            * Work/testDb.R: Script to test database stuff.
717    
718            * R/: Fixed various database related bugs. Seems to be rather
719            useable now, i.e., consider as alpha status for now.
720    
721    2007-04-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
722    
723            * R/: Fixed some bugs related to database support.
724    
725    2007-04-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
726    
727            * man/: Added a lot of examples to the manuals.
728    
729    2007-04-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
730    
731            * man/: Updated parts of the documentation.
732    
733            * R/textdoccol.R (asPlain): Added conversion from newsgroup
734            documents to plain text documents.
735    
736    2007-04-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
737    
738            * R/textdoccol.R: Finished experimental database support. Not yet
739            intensively tested.
740    
741            * R/source.R: Now each source has a default reader.
742    
743            * R/reader.R: \code{FunctionGenerator} is now an attribute, not a
744            class anymore.
745    
746            * R/plaintextdoc.R: Custom show method for plain text documents.
747    
748            * R/aobjects.R: Added a class for structured text documents.
749    
750            * R/reader.R: Replaced remaining \code{parser} occurrences with
751            \code{reader}.
752    
753            * R/textdoccol.R (summary): Indent tags.
754    
755            * R/textdoccol.R (removePunctuation): Transform method to remove
756            punctuation marks.
757    
758    2007-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
759    
760            * R/textdoccol.R (sFilter): Simplified sFilter significantly by
761            using prescindMeta().
762    
763    2007-03-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
764    
765            * R/textdoccol.R: Improved database support.
766    
767    2007-03-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
768    
769            * R/termdocmatrix.R (TermDocMatrix): Uses sparse matrices.
770    
771            * R/resolve.R (resolveISOcode): Extracts the language from a ISO
772            language code.
773    
774            * R/textdoccol.R (TextDocCol): Refactored several parser arguments
775            into parserControl argument.
776    
777            * R/aobjects.R (TextDocument): Introduced the "Language" slot.
778    
779    2007-03-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
780    
781            * Work/tmDataSetup.R: The datasets acq and crude can now be
782            created on the fly.
783    
784            * R/stopwords.R: Introduced a function returning the stopwords for
785            a given language (English, German and French at the moment)
786    
787            * R/textdoccol.R (stemDoc): Stemming uses Rstem if available,
788            otherwise falls back to Snowball package.
789    
790    2007-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
791    
792            * man/dissimilarity-methods.Rd: Make clear that any method offered
793            by "dists" from package "cba" can be used.
794    
795  2007-01-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>  2007-01-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
796    
797            * inst/doc/tm.Rnw: Fixed quotes-appearing-as-boxes-bug according
798            to Kurt's latex suggestion. Removed points and underscores in
799            variable names for consistent naming.
800    
801          * DESCRIPTION: Update to version 0.1-2.          * DESCRIPTION: Update to version 0.1-2.
802    
803          * man/TextRepository.Rd: Fixed bug in documentation.          * man/TextRepository.Rd: Fixed bug in documentation.

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