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trunk/tm/ChangeLog revision 738, Fri Apr 20 13:55:34 2007 UTC pkg/ChangeLog revision 1070, Tue May 18 08:58:22 2010 UTC
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1    2010-05-18  Ingo Feinerer  <feinerer@logic.at>
2    
3            * R/corpus.R (Corpus, PCorpus): Use element names as IDs if
4            provided by a source.
5    
6    2010-04-09  Ingo Feinerer  <feinerer@logic.at>
7    
8            * R/source.R (.Source): Provide document names.
9    
10    2010-04-07  Ingo Feinerer  <feinerer@logic.at>
11    
12            * R/meta.R (`content_or_meta`): Utility function.
13    
14    2010-03-19  Ingo Feinerer  <feinerer@logic.at>
15    
16            * R/reader.R (readReut21578XML, readReut21578XMLasPlain): Extract
17            TOPICS, LEWISSPLIT, CGISPLIT, and OLDID meta tags.
18    
19    2010-03-03  Ingo Feinerer  <feinerer@logic.at>
20    
21            * R/weight.R (weightTfIdf): Added normalization option.
22    
23            * man/tm_tag_score.Rd: Add General Inquirer example for sentiment
24            analysis.
25    
26    2010-02-25  Ingo Feinerer  <feinerer@logic.at>
27    
28            * R/score.R (tm_tag_score): Compute a score from the number of
29            tags matching in a document.
30    
31    2010-02-18  Ingo Feinerer  <feinerer@logic.at>
32    
33            * R/complete.R (stemCompletion): New completion heuristics.
34    
35    2010-02-17  Ingo Feinerer  <feinerer@logic.at>
36    
37            * R/plot.R (plot.TermDocumentMatrix): Memory improvements.
38    
39    2010-02-06  Ingo Feinerer  <feinerer@logic.at>
40    
41            * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
42            setOldClass(c(..., "list")) works.
43    
44    2010-01-22  Ingo Feinerer  <feinerer@logic.at>
45    
46            * R/transform.R (stemDocument.character): In case input is a
47            simple character just delegate to the default Snowball stemmer.
48    
49    2010-01-15  Ingo Feinerer  <feinerer@logic.at>
50    
51            * R/reader.R (readReut21578XML, readRCV1): Extract more meta
52            data.
53    
54    2010-01-12  Ingo Feinerer  <feinerer@logic.at>
55    
56            * R/doc.R (`Content<-`): Be careful with names attribute.
57    
58    2010-01-07  Stefan Theussl  <stefan.theussl@wu.ac.at>
59    
60            * R/source.R (DirSource): Improved implementation especially when
61            handling many (> 1M) files.
62    
63    2009-12-22  Ingo Feinerer  <feinerer@logic.at>
64    
65            * R/source.R (getElem.URISource): Use encoding argument.
66    
67    2009-12-11  Ingo Feinerer  <feinerer@logic.at>
68    
69            * R/doc.R (setOldClass): Register S3 document classes to be
70            recognized by S4 methods.
71    
72    2009-11-25  Ingo Feinerer  <feinerer@logic.at>
73    
74            * R/matrix.R (termFreq): Add option to remove punctuation
75            characters.
76    
77    2009-11-19  Ingo Feinerer  <feinerer@logic.at>
78    
79            * R/matrix.R (c.TermDocumentMatrix): Added combine method for
80            merging multiple term-document matrices.
81    
82    2009-11-17  Ingo Feinerer  <feinerer@logic.at>
83    
84            * R/corpus.R (setOldClass): Register S3 corpus classes to be
85            recognized by S4 methods.
86    
87            * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
88            that CRAN Mac OS X builds do not fail any longer.
89    
90    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
91    
92            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
93            of RWeka:AlphabeticTokenizer() as default.
94    
95    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
96    
97            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
98            caused words at the beginning or the end of a line not to be removed. Do
99            not delete whitespace anymore.
100    
101    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
102    
103            * R/source.R (DirSource): Default to working directory if no path
104            is specified.
105    
106    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
107    
108            * R/source.R (DirSource): Stop on empty directories.
109    
110    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
111    
112            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
113            named documents.
114    
115    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
116    
117            * R/transform.R (removeWords): Improve regular expressions.
118    
119    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
120    
121            * R/meta.R (DublinCore): Allow lower case tags.
122    
123    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
124    
125            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
126            instead of x$children.
127    
128    2009-09-15  Ingo Feinerer  <feinerer@logic.at>
129    
130            * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
131    
132    2009-09-06  Ingo Feinerer  <feinerer@logic.at>
133    
134            * R/: Use S3 instead of S4 class system.
135    
136    2009-08-11  Ingo Feinerer  <feinerer@logic.at>
137    
138            * R/reader.R (readMail): Moved to tm.plugin.mail package.
139    
140    2009-07-04  Ingo Feinerer  <feinerer@logic.at>
141    
142            * R/reader.R (readNewsgroup): Rename to readMail as newsgroup
143            postings are basically e-mails with some extra headers.
144    
145    2009-07-03  Ingo Feinerer  <feinerer@logic.at>
146    
147            * R/transform.R: Move convertMboxEml, removeCitation,
148            removeMultipart, and removeSignature to the tm.plugin.mail package
149            since they are mainly utility functions (for handling e-mails) and
150            not very framework specific.
151    
152    2009-06-28  Ingo Feinerer  <feinerer@logic.at>
153    
154            * man/: Fix documentation.
155    
156    2009-06-26  Ingo Feinerer  <feinerer@logic.at>
157    
158            * R/reader.R (readReut21578XMLasPlain): New reader which returns a
159            plain text document instead of an XML document for texts of the
160            Reuters-21578 dataset.
161    
162            * R/sparse.R: Removed since the slam package is now available on
163            CRAN.
164    
165            * DESCRIPTION (Depends): Add slam package.
166    
167    2009-06-17  Ingo Feinerer  <feinerer@logic.at>
168    
169            * R/transform.R (stemDoc): Fix character(0) handling.
170    
171    2009-06-12  Ingo Feinerer  <feinerer@logic.at>
172    
173            * R/doc.R (show): Pretty print.
174    
175    2009-05-27  Ingo Feinerer  <feinerer@logic.at>
176    
177            * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
178            gracefully.
179    
180    2009-05-13  Ingo Feinerer  <feinerer@logic.at>
181    
182            * R/corpus.R: Make corpus virtual. Implement corpus with standard
183            and permanent storage semantics.
184    
185            * DESCRIPTION: New major release. A *lot* of improvements.
186    
187    2009-05-04   Ingo Feinerer <feinerer@logic.at>
188    
189            * NAMESPACE: Export some simple_triplet_matrix functions.
190    
191    2009-04-28   Ingo Feinerer <feinerer@logic.at>
192    
193            * R/weight.R: Adapt tf-idf to new matrix format.
194    
195    2009-04-27  Ingo Feinerer  <feinerer@logic.at>
196    
197            * R/matrix.R: Create two distinct classes for term-document and
198            document-term matrices.
199    
200    2009-04-26  Ingo Feinerer  <feinerer@logic.at>
201    
202            * R/termdocmatrix.R: No longer use Matrix package. This reduces
203            package start-up time significantly.
204    
205    2009-04-11  Ingo Feinerer  <feinerer@logic.at>
206    
207            * inst/doc/tm.Rnw: Fix code/documentation mismatch.
208    
209    2009-04-04  Ingo Feinerer  <feinerer@logic.at>
210    
211            * R/transform.R (tmReduce): Combine multiple maps into one
212            transformation.
213    
214    2009-04-03  Ingo Feinerer  <feinerer@logic.at>
215    
216            * R/weight.R: Remove weightLogical since it does not return a
217            dgCMatrix.
218    
219            * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
220            or TermDocumentMatrix instead.
221    
222    2009-03-28  Ingo Feinerer  <feinerer@logic.at>
223    
224            * inst/doc/extensions.Rnw: Finished vignette.
225    
226    2009-03-27  Ingo Feinerer  <feinerer@logic.at>
227    
228            * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
229            DocumentTermMatrix representations.
230    
231    2009-03-23  Ingo Feinerer  <feinerer@logic.at>
232    
233            * R/reader.R (readXML): New reader for arbitrary XML files.
234    
235    2009-03-22  Ingo Feinerer  <feinerer@logic.at>
236    
237            * R/source.R (CSVSource): Defunct (use DataframeSource instead).
238            (XMLSource): New XMLSource class for arbitrary XML files.
239            (Source): New slot Vectorized.
240    
241    2009-03-21  Ingo Feinerer  <feinerer@logic.at>
242    
243            * R/reader.R (readTabular): Experimental reader for tabular data
244            structures which can be customized via user-defined mappings.
245    
246            * R/reader.R: Always use UTC time zone.
247    
248            * R/AAA.R (.onLoad): No longer try to start a MPI cluster.
249    
250    2009-03-20  Ingo Feinerer  <feinerer@logic.at>
251    
252            * R/reader.R (readDOC): Options can be passed over to antiword.
253    
254            * R/reader.R (readPDF): Options can be passed over to pdfinfo and
255            pdftotext.
256    
257    2009-03-10  Ingo Feinerer  <feinerer@logic.at>
258    
259            * R/source.R (DirSource): Add pattern and ignore.case arguments
260            which are internally passed over to list.files().
261    
262    2009-03-02  Ingo Feinerer  <feinerer@logic.at>
263    
264            * inst/doc/tm.Rnw: Suppress pointless loading message.
265    
266    2009-01-29  Ingo Feinerer  <feinerer@logic.at>
267    
268            * DESCRIPTION: Speed up package loading (via moving packages not
269            strictly necessary for normal operation to Suggests instead of
270            Depends).
271    
272    2009-01-08  Ingo Feinerer  <feinerer@logic.at>
273    
274            * R/reader.R (readNewsgroup): The date format is now configurable.
275    
276    2008-12-20  Ingo Feinerer  <feinerer@logic.at>
277    
278            * R/preprocess.R (convertMboxEml): Fix off-by-one error.
279    
280    2008-12-16  Ingo Feinerer  <feinerer@logic.at>
281    
282            * R/termdocmatrix.R (TermDocMatrix): Sort row indices.
283    
284    2008-12-06  Ingo Feinerer  <feinerer@logic.at>
285    
286            * R/source.R (DataframeSource): New source class for data frames.
287    
288            * R/source.R: Fixed non-standard call evaluation.
289    
290    2008-11-29  Ingo Feinerer  <feinerer@logic.at>
291    
292            * R/source.R (URISource): New source class for a single document.
293    
294    2008-11-27  Ingo Feinerer  <feinerer@logic.at>
295    
296            * R/source.R: Refactoring.
297    
298    2008-11-25  Ingo Feinerer  <feinerer@logic.at>
299    
300            * R/AAA.R (.onLoad, .Last): Use tryCatch() to handle misconfigured
301            Rmpi installations more gracefully.
302    
303    2008-11-08  Ingo Feinerer  <feinerer@logic.at>
304    
305            * R/source.R (Source): Add Length slot.
306    
307    2008-11-06  Ingo Feinerer  <feinerer@logic.at>
308    
309            * R/AAA.R: Unify duplicated .onLoad function.
310    
311    2008-11-03  Ingo Feinerer  <feinerer@logic.at>
312    
313            * DESCRIPTION (Suggests): Added Rmpi.
314    
315    2008-11-02  Ingo Feinerer  <feinerer@logic.at>
316    
317            * R/source.R (getElem): Fix 'no visible binding' warning.
318    
319            * man/WeightFunction.Rd: Fix signature.
320    
321    2008-08-03  Ingo Feinerer  <feinerer@logic.at>
322    
323            * R/weight.R: Introduce name abbreviations for weighting functions.
324    
325    2008-07-24  Ingo Feinerer  <feinerer@logic.at>
326    
327            * R/AAA.R (.onLoad, .Last): Start and stop MPI cluster.
328    
329            * R/cluster.R: Provide convenience functions for using a MPI
330            cluster.
331    
332            * R/termdocmatrix.R (TermDocMatrix): Use MPI cluster if
333            available.
334    
335            * R/textdoccol.R (tmIndex, tmFilter, tmMap): Use MPI cluster if
336            available.
337    
338    2008-07-17  Ingo Feinerer  <feinerer@logic.at>
339    
340            * R/textdoccol.R (lapply): Removed debug print out.
341    
342    2008-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
343    
344            * R/reader.R (readRCV1): Improved meta data extraction from
345            Reuters Corpus Volume 1 documents.
346    
347    2008-05-25  Ingo Feinerer  <h0125130@wu-wien.ac.at>
348    
349            * R/transform.R: Ensure that all mappings preserve multiline
350            structures.
351    
352    2008-05-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
353    
354            * R/filter.R: Every filter has now an attribute indicating whether
355            it sould be applied to document level (doclevel).
356    
357            * R/textdoccol.R (tmFilter): Set searchFullText as new default
358            filter.
359    
360    2008-04-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
361    
362            * R/transform.R (replacePatterns): Replaced removeWords by
363            replacePatterns. Suggested by Christian Buchta.
364    
365            * R/textdoccol.R (inspect): Improved formatting.
366    
367    2008-04-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
368    
369            * inst/CITATION: Updated JSS article information.
370    
371            * R/textdoccol.R (setAs): Added coerce method from list to
372            corpus.
373    
374            * R/meta.R (meta): Improved meta data handling.
375    
376    2008-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
377    
378            * R/textdoccol.R (materialize, tmMap): Improvements suggested by
379            Christian Buchta.
380    
381            * inst/CITATION: Added template to include JSS article reference.
382    
383    2008-03-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
384    
385            * R/textdoccol.R (tmMap): Introduced lazy mapping.
386    
387            * R/source.R: Added VectorSource.
388    
389    2008-02-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
390    
391            * man/: Language codes should be in ISO 639-1 format.
392    
393            * R/textdoccol.R (asPlain): Preserve local meta data.
394    
395    2008-01-31  Ingo Feinerer  <h0125130@wu-wien.ac.at>
396    
397            * R/textdoccol.R (writeCorpus): Function for writing a corpus
398            containing plain text documents to disk.
399    
400    2008-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
401    
402            * R/termdocmatrix.R (TermDocMatrix): Ensure that dimnames are
403            always set correctly.
404    
405            * R/textdoccol.R: Set load = TRUE as default for load on demand
406            since in most cases this is the wanted behaviour.
407    
408    2008-01-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
409    
410            * R/: Renamed TextDocCol to Corpus, and Corpus to Content.
411    
412            * DESCRIPTION: Updated Version to 0.3 due to core name changes.
413    
414    2008-01-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
415    
416            * R/meta.R (meta): New function for consistent access to meta data
417            of document collections, repositories, and texts.
418    
419    2008-01-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
420    
421            * R/: Better support for encodings.
422    
423    2008-01-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
424    
425            * R/textdoccol.R (TextDocCol): Fixed bug regarding default reader
426            selection when no reader argument is given.
427    
428    2008-01-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
429    
430            * R/source.R (CSVSource): Now uses read.csv instead of scan
431            internally.
432    
433    2008-01-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
434    
435            * R/reader.R (getReaders): Returns available reader functions.
436    
437            * R/termdocmatrix.R (TermDocMatrix): Set new modular constructor
438            as default.
439    
440    2007-12-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
441    
442            * R/stopwords.R (stopwords): Shortened code, removed codetools
443            variable warnings.
444    
445            * man/: Documentation for showMeta, added an example for tmMap.
446    
447            * inst/doc/tm.Rnw: Updated vignette, comments on MS word reader,
448            some minor typos fixed.
449    
450    2007-12-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
451    
452            * R/aobjects.R (showMeta): Added method for pretty printing a
453            text document's meta data.
454    
455    2007-11-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
456    
457            * R/textdoccol.R (TextDocCol): Better handling of empty
458            arguments.
459    
460            * NAMESPACE: Exported readDOC.
461    
462            * man/completeStems.Rd: Added an example.
463    
464    2007-11-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
465    
466            * R/stopwords.R (stopwords): Look up .dat files at every
467            call. Allows users to modify stopword .dat files interactively.
468    
469    2007-11-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
470    
471            * R/termdocmatrix.R (termFreq): Correct processing of empty
472            documents.
473    
474    2007-10-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
475    
476            * man/: Updated documentation.
477    
478    2007-10-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
479    
480            * R/complete.R (completeStems): Completes (heuristically) word
481            stems.
482    
483            * R/termdocmatrix.R (TermDocMatrix2): New modular
484            constructor.
485    
486            * NAMESPACE: Exported termFreq.
487    
488    2007-10-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
489    
490            * R/reader.R (readDOC): Added MS Word reader (using antiword).
491    
492    2007-10-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
493    
494            * R/weight.R: Weighting functions for TermDocMatrix.
495    
496    2007-10-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
497    
498            * R/termdocmatrix.R (dimnames, colnames, rownames): Wrapper
499            functions for accessing dimension, column, and row names.
500    
501            * R/plot.R (plot.TermDocMatrix): Plot correlations between terms.
502    
503    2007-09-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
504    
505            * man/removePunctuation.Rd: Added documentation. Function also exported to NAMESPACE.
506    
507    2007-08-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
508    
509            * R/fungen.R: Use S4 class for function generators instead of S3 attributes.
510    
511    2007-07-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
512    
513            * R/reader.R (readPDF): Removed manual checks for pdftotext and
514            pdfinfo. The system call gives a warning anyway.
515    
516    2007-07-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
517    
518            * R/textdoccol.R (asPlain): Conversion from
519            StructuredTextDocuments to PlainTextDocuments.
520    
521    2007-07-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
522    
523            * R/termdocmatrix.R: Added convenience methods ("[", nrow, ncol)
524            for accessing term-document matrices.
525    
526            * inst/doc/tm.Rnw: readPDF is only called if pdftotext and pdfinfo
527            are installed.
528    
529    2007-07-17  Ingo Feinerer  <h0125130@wu-wien.ac.at>
530    
531            * R/termdocmatrix.R (TermDocMatrix): Improved efficiency. Kudos to
532            Christian Buchta.
533    
534    2007-07-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
535    
536            * inst/doc/tm.Rnw: Update vignette (readPDF, readHTML, preprocessReut21578XML).
537    
538    2007-07-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
539    
540            * R/reader.R (readHTML): Added very simple HTML reader to obtain StructuredTextDocuments.
541    
542            * R/reader.R (readPDF): Added PDF reader.
543    
544    2007-07-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
545    
546            * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
547    
548            * inst/stopwords/english.dat: Added the term "yes" to stopwords.
549    
550            * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
551    
552            * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
553    
554    2007-07-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
555    
556            * R/distmeasure.R (dissimilarity): Replaced dists call from
557            package cba by new dist call from package proxy.
558    
559    2007-07-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
560    
561            * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
562    
563    2007-06-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
564    
565            * R/termdocmatrix.R: require() uses the quietly option to suppress
566            loading messages.
567    
568    2007-06-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
569    
570            * R/dictionary.R: Added dictionary support.
571    
572    2007-06-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
573    
574            * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
575            documents. This simplifies some functions, e.g., asPlain.
576    
577    2007-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
578    
579            * inst/doc/tm.Rnw: Fixed some typos in vignette.
580    
581    2007-06-03  Ingo Feinerer  <h0125130@wu-wien.ac.at>
582    
583            * R/textdoccol.R (replaceWords): Added method to replace a set of
584            words by a single word. Useful for synonyms.
585    
586    2007-05-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
587    
588            * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
589    
590    2007-05-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
591    
592            * R/termdocmatrix.R (textvector): Small fix for dealing with empty
593            vectors. Thanks to Ariel Maguyon for his error report.
594            (removeSparseTerms): New function to remove columns from a
595            term-document matrix exceeding a sparse factor.
596    
597    2007-05-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
598    
599            * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
600    
601    2007-05-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
602    
603            * man/sFilter.Rd: Corrected documentation on statement format (use
604            '==' instead of '=').
605    
606    2007-05-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
607    
608            * R/aobjects.R (StructuredTextDocument): Inherits from
609            TextDocument.
610    
611    2007-05-04  Ingo Feinerer  <h0125130@wu-wien.ac.at>
612    
613            * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
614            on sparse matrices as proposed by Martin Maechler.
615    
616    2007-04-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
617    
618            * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
619            \pkg{filehash} version makes them deprecated.
620    
621    2007-04-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
622    
623            * R/termdocmatrix.R (textvector): Stemming is now performed before
624            erasing stopwords.
625            (weightMatrix): Adapted to handle sparse matrices.
626            (TermDocMatrix): Sparse matrix is now efficiently built by
627            direct stepwise insertion of row values into it.
628    
629    2007-04-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
630    
631            * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
632            due to ongoing problems. For our purposes the latter is as useful
633            as the replaced package.
634    
635  2007-04-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>  2007-04-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>
636    
637          * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.          * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.

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