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trunk/tm/ChangeLog revision 719, Sun Mar 18 09:24:47 2007 UTC pkg/ChangeLog revision 1025, Fri Dec 11 08:56:22 2009 UTC
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1    2009-12-11  Ingo Feinerer  <feinerer@logic.at>
2    
3            * R/doc.R (setOldClass): Register S3 document classes to be
4            recognized by S4 methods.
5    
6    2009-11-25  Ingo Feinerer  <feinerer@logic.at>
7    
8            * R/matrix.R (termFreq): Add option to remove punctuation
9            characters.
10    
11    2009-11-19  Ingo Feinerer  <feinerer@logic.at>
12    
13            * R/matrix.R (c.TermDocumentMatrix): Added combine method for
14            merging multiple term-document matrices.
15    
16    2009-11-17  Ingo Feinerer  <feinerer@logic.at>
17    
18            * R/corpus.R (setOldClass): Register S3 corpus classes to be
19            recognized by S4 methods.
20    
21            * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
22            that CRAN Mac OS X builds do not fail any longer.
23    
24    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
25    
26            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
27            of RWeka:AlphabeticTokenizer() as default.
28    
29    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
30    
31            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
32            caused words at the beginning or the end of a line not to be removed. Do
33            not delete whitespace anymore.
34    
35    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
36    
37            * R/source.R (DirSource): Default to working directory if no path
38            is specified.
39    
40    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
41    
42            * R/source.R (DirSource): Stop on empty directories.
43    
44    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
45    
46            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
47            named documents.
48    
49    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
50    
51            * R/transform.R (removeWords): Improve regular expressions.
52    
53    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
54    
55            * R/meta.R (DublinCore): Allow lower case tags.
56    
57    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
58    
59            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
60            instead of x$children.
61    
62    2009-09-15  Ingo Feinerer  <feinerer@logic.at>
63    
64            * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
65    
66    2009-09-06  Ingo Feinerer  <feinerer@logic.at>
67    
68            * R/: Use S3 instead of S4 class system.
69    
70    2009-08-11  Ingo Feinerer  <feinerer@logic.at>
71    
72            * R/reader.R (readMail): Moved to tm.plugin.mail package.
73    
74    2009-07-04  Ingo Feinerer  <feinerer@logic.at>
75    
76            * R/reader.R (readNewsgroup): Rename to readMail as newsgroup
77            postings are basically e-mails with some extra headers.
78    
79    2009-07-03  Ingo Feinerer  <feinerer@logic.at>
80    
81            * R/transform.R: Move convertMboxEml, removeCitation,
82            removeMultipart, and removeSignature to the tm.plugin.mail package
83            since they are mainly utility functions (for handling e-mails) and
84            not very framework specific.
85    
86    2009-06-28  Ingo Feinerer  <feinerer@logic.at>
87    
88            * man/: Fix documentation.
89    
90    2009-06-26  Ingo Feinerer  <feinerer@logic.at>
91    
92            * R/reader.R (readReut21578XMLasPlain): New reader which returns a
93            plain text document instead of an XML document for texts of the
94            Reuters-21578 dataset.
95    
96            * R/sparse.R: Removed since the slam package is now available on
97            CRAN.
98    
99            * DESCRIPTION (Depends): Add slam package.
100    
101    2009-06-17  Ingo Feinerer  <feinerer@logic.at>
102    
103            * R/transform.R (stemDoc): Fix character(0) handling.
104    
105    2009-06-12  Ingo Feinerer  <feinerer@logic.at>
106    
107            * R/doc.R (show): Pretty print.
108    
109    2009-05-27  Ingo Feinerer  <feinerer@logic.at>
110    
111            * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
112            gracefully.
113    
114    2009-05-13  Ingo Feinerer  <feinerer@logic.at>
115    
116            * R/corpus.R: Make corpus virtual. Implement corpus with standard
117            and permanent storage semantics.
118    
119            * DESCRIPTION: New major release. A *lot* of improvements.
120    
121    2009-05-04   Ingo Feinerer <feinerer@logic.at>
122    
123            * NAMESPACE: Export some simple_triplet_matrix functions.
124    
125    2009-04-28   Ingo Feinerer <feinerer@logic.at>
126    
127            * R/weight.R: Adapt tf-idf to new matrix format.
128    
129    2009-04-27  Ingo Feinerer  <feinerer@logic.at>
130    
131            * R/matrix.R: Create two distinct classes for term-document and
132            document-term matrices.
133    
134    2009-04-26  Ingo Feinerer  <feinerer@logic.at>
135    
136            * R/termdocmatrix.R: No longer use Matrix package. This reduces
137            package start-up time significantly.
138    
139    2009-04-11  Ingo Feinerer  <feinerer@logic.at>
140    
141            * inst/doc/tm.Rnw: Fix code/documentation mismatch.
142    
143    2009-04-04  Ingo Feinerer  <feinerer@logic.at>
144    
145            * R/transform.R (tmReduce): Combine multiple maps into one
146            transformation.
147    
148    2009-04-03  Ingo Feinerer  <feinerer@logic.at>
149    
150            * R/weight.R: Remove weightLogical since it does not return a
151            dgCMatrix.
152    
153            * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
154            or TermDocumentMatrix instead.
155    
156    2009-03-28  Ingo Feinerer  <feinerer@logic.at>
157    
158            * inst/doc/extensions.Rnw: Finished vignette.
159    
160    2009-03-27  Ingo Feinerer  <feinerer@logic.at>
161    
162            * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
163            DocumentTermMatrix representations.
164    
165    2009-03-23  Ingo Feinerer  <feinerer@logic.at>
166    
167            * R/reader.R (readXML): New reader for arbitrary XML files.
168    
169    2009-03-22  Ingo Feinerer  <feinerer@logic.at>
170    
171            * R/source.R (CSVSource): Defunct (use DataframeSource instead).
172            (XMLSource): New XMLSource class for arbitrary XML files.
173            (Source): New slot Vectorized.
174    
175    2009-03-21  Ingo Feinerer  <feinerer@logic.at>
176    
177            * R/reader.R (readTabular): Experimental reader for tabular data
178            structures which can be customized via user-defined mappings.
179    
180            * R/reader.R: Always use UTC time zone.
181    
182            * R/AAA.R (.onLoad): No longer try to start a MPI cluster.
183    
184    2009-03-20  Ingo Feinerer  <feinerer@logic.at>
185    
186            * R/reader.R (readDOC): Options can be passed over to antiword.
187    
188            * R/reader.R (readPDF): Options can be passed over to pdfinfo and
189            pdftotext.
190    
191    2009-03-10  Ingo Feinerer  <feinerer@logic.at>
192    
193            * R/source.R (DirSource): Add pattern and ignore.case arguments
194            which are internally passed over to list.files().
195    
196    2009-03-02  Ingo Feinerer  <feinerer@logic.at>
197    
198            * inst/doc/tm.Rnw: Suppress pointless loading message.
199    
200    2009-01-29  Ingo Feinerer  <feinerer@logic.at>
201    
202            * DESCRIPTION: Speed up package loading (via moving packages not
203            strictly necessary for normal operation to Suggests instead of
204            Depends).
205    
206    2009-01-08  Ingo Feinerer  <feinerer@logic.at>
207    
208            * R/reader.R (readNewsgroup): The date format is now configurable.
209    
210    2008-12-20  Ingo Feinerer  <feinerer@logic.at>
211    
212            * R/preprocess.R (convertMboxEml): Fix off-by-one error.
213    
214    2008-12-16  Ingo Feinerer  <feinerer@logic.at>
215    
216            * R/termdocmatrix.R (TermDocMatrix): Sort row indices.
217    
218    2008-12-06  Ingo Feinerer  <feinerer@logic.at>
219    
220            * R/source.R (DataframeSource): New source class for data frames.
221    
222            * R/source.R: Fixed non-standard call evaluation.
223    
224    2008-11-29  Ingo Feinerer  <feinerer@logic.at>
225    
226            * R/source.R (URISource): New source class for a single document.
227    
228    2008-11-27  Ingo Feinerer  <feinerer@logic.at>
229    
230            * R/source.R: Refactoring.
231    
232    2008-11-25  Ingo Feinerer  <feinerer@logic.at>
233    
234            * R/AAA.R (.onLoad, .Last): Use tryCatch() to handle misconfigured
235            Rmpi installations more gracefully.
236    
237    2008-11-08  Ingo Feinerer  <feinerer@logic.at>
238    
239            * R/source.R (Source): Add Length slot.
240    
241    2008-11-06  Ingo Feinerer  <feinerer@logic.at>
242    
243            * R/AAA.R: Unify duplicated .onLoad function.
244    
245    2008-11-03  Ingo Feinerer  <feinerer@logic.at>
246    
247            * DESCRIPTION (Suggests): Added Rmpi.
248    
249    2008-11-02  Ingo Feinerer  <feinerer@logic.at>
250    
251            * R/source.R (getElem): Fix 'no visible binding' warning.
252    
253            * man/WeightFunction.Rd: Fix signature.
254    
255    2008-08-03  Ingo Feinerer  <feinerer@logic.at>
256    
257            * R/weight.R: Introduce name abbreviations for weighting functions.
258    
259    2008-07-24  Ingo Feinerer  <feinerer@logic.at>
260    
261            * R/AAA.R (.onLoad, .Last): Start and stop MPI cluster.
262    
263            * R/cluster.R: Provide convenience functions for using a MPI
264            cluster.
265    
266            * R/termdocmatrix.R (TermDocMatrix): Use MPI cluster if
267            available.
268    
269            * R/textdoccol.R (tmIndex, tmFilter, tmMap): Use MPI cluster if
270            available.
271    
272    2008-07-17  Ingo Feinerer  <feinerer@logic.at>
273    
274            * R/textdoccol.R (lapply): Removed debug print out.
275    
276    2008-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
277    
278            * R/reader.R (readRCV1): Improved meta data extraction from
279            Reuters Corpus Volume 1 documents.
280    
281    2008-05-25  Ingo Feinerer  <h0125130@wu-wien.ac.at>
282    
283            * R/transform.R: Ensure that all mappings preserve multiline
284            structures.
285    
286    2008-05-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
287    
288            * R/filter.R: Every filter has now an attribute indicating whether
289            it sould be applied to document level (doclevel).
290    
291            * R/textdoccol.R (tmFilter): Set searchFullText as new default
292            filter.
293    
294    2008-04-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
295    
296            * R/transform.R (replacePatterns): Replaced removeWords by
297            replacePatterns. Suggested by Christian Buchta.
298    
299            * R/textdoccol.R (inspect): Improved formatting.
300    
301    2008-04-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
302    
303            * inst/CITATION: Updated JSS article information.
304    
305            * R/textdoccol.R (setAs): Added coerce method from list to
306            corpus.
307    
308            * R/meta.R (meta): Improved meta data handling.
309    
310    2008-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
311    
312            * R/textdoccol.R (materialize, tmMap): Improvements suggested by
313            Christian Buchta.
314    
315            * inst/CITATION: Added template to include JSS article reference.
316    
317    2008-03-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
318    
319            * R/textdoccol.R (tmMap): Introduced lazy mapping.
320    
321            * R/source.R: Added VectorSource.
322    
323    2008-02-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
324    
325            * man/: Language codes should be in ISO 639-1 format.
326    
327            * R/textdoccol.R (asPlain): Preserve local meta data.
328    
329    2008-01-31  Ingo Feinerer  <h0125130@wu-wien.ac.at>
330    
331            * R/textdoccol.R (writeCorpus): Function for writing a corpus
332            containing plain text documents to disk.
333    
334    2008-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
335    
336            * R/termdocmatrix.R (TermDocMatrix): Ensure that dimnames are
337            always set correctly.
338    
339            * R/textdoccol.R: Set load = TRUE as default for load on demand
340            since in most cases this is the wanted behaviour.
341    
342    2008-01-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
343    
344            * R/: Renamed TextDocCol to Corpus, and Corpus to Content.
345    
346            * DESCRIPTION: Updated Version to 0.3 due to core name changes.
347    
348    2008-01-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
349    
350            * R/meta.R (meta): New function for consistent access to meta data
351            of document collections, repositories, and texts.
352    
353    2008-01-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
354    
355            * R/: Better support for encodings.
356    
357    2008-01-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
358    
359            * R/textdoccol.R (TextDocCol): Fixed bug regarding default reader
360            selection when no reader argument is given.
361    
362    2008-01-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
363    
364            * R/source.R (CSVSource): Now uses read.csv instead of scan
365            internally.
366    
367    2008-01-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
368    
369            * R/reader.R (getReaders): Returns available reader functions.
370    
371            * R/termdocmatrix.R (TermDocMatrix): Set new modular constructor
372            as default.
373    
374    2007-12-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
375    
376            * R/stopwords.R (stopwords): Shortened code, removed codetools
377            variable warnings.
378    
379            * man/: Documentation for showMeta, added an example for tmMap.
380    
381            * inst/doc/tm.Rnw: Updated vignette, comments on MS word reader,
382            some minor typos fixed.
383    
384    2007-12-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
385    
386            * R/aobjects.R (showMeta): Added method for pretty printing a
387            text document's meta data.
388    
389    2007-11-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
390    
391            * R/textdoccol.R (TextDocCol): Better handling of empty
392            arguments.
393    
394            * NAMESPACE: Exported readDOC.
395    
396            * man/completeStems.Rd: Added an example.
397    
398    2007-11-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
399    
400            * R/stopwords.R (stopwords): Look up .dat files at every
401            call. Allows users to modify stopword .dat files interactively.
402    
403    2007-11-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
404    
405            * R/termdocmatrix.R (termFreq): Correct processing of empty
406            documents.
407    
408    2007-10-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
409    
410            * man/: Updated documentation.
411    
412    2007-10-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
413    
414            * R/complete.R (completeStems): Completes (heuristically) word
415            stems.
416    
417            * R/termdocmatrix.R (TermDocMatrix2): New modular
418            constructor.
419    
420            * NAMESPACE: Exported termFreq.
421    
422    2007-10-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
423    
424            * R/reader.R (readDOC): Added MS Word reader (using antiword).
425    
426    2007-10-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
427    
428            * R/weight.R: Weighting functions for TermDocMatrix.
429    
430    2007-10-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
431    
432            * R/termdocmatrix.R (dimnames, colnames, rownames): Wrapper
433            functions for accessing dimension, column, and row names.
434    
435            * R/plot.R (plot.TermDocMatrix): Plot correlations between terms.
436    
437    2007-09-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
438    
439            * man/removePunctuation.Rd: Added documentation. Function also exported to NAMESPACE.
440    
441    2007-08-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
442    
443            * R/fungen.R: Use S4 class for function generators instead of S3 attributes.
444    
445    2007-07-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
446    
447            * R/reader.R (readPDF): Removed manual checks for pdftotext and
448            pdfinfo. The system call gives a warning anyway.
449    
450    2007-07-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
451    
452            * R/textdoccol.R (asPlain): Conversion from
453            StructuredTextDocuments to PlainTextDocuments.
454    
455    2007-07-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
456    
457            * R/termdocmatrix.R: Added convenience methods ("[", nrow, ncol)
458            for accessing term-document matrices.
459    
460            * inst/doc/tm.Rnw: readPDF is only called if pdftotext and pdfinfo
461            are installed.
462    
463    2007-07-17  Ingo Feinerer  <h0125130@wu-wien.ac.at>
464    
465            * R/termdocmatrix.R (TermDocMatrix): Improved efficiency. Kudos to
466            Christian Buchta.
467    
468    2007-07-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
469    
470            * inst/doc/tm.Rnw: Update vignette (readPDF, readHTML, preprocessReut21578XML).
471    
472    2007-07-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
473    
474            * R/reader.R (readHTML): Added very simple HTML reader to obtain StructuredTextDocuments.
475    
476            * R/reader.R (readPDF): Added PDF reader.
477    
478    2007-07-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
479    
480            * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
481    
482            * inst/stopwords/english.dat: Added the term "yes" to stopwords.
483    
484            * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
485    
486            * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
487    
488    2007-07-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
489    
490            * R/distmeasure.R (dissimilarity): Replaced dists call from
491            package cba by new dist call from package proxy.
492    
493    2007-07-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
494    
495            * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
496    
497    2007-06-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
498    
499            * R/termdocmatrix.R: require() uses the quietly option to suppress
500            loading messages.
501    
502    2007-06-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
503    
504            * R/dictionary.R: Added dictionary support.
505    
506    2007-06-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
507    
508            * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
509            documents. This simplifies some functions, e.g., asPlain.
510    
511    2007-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
512    
513            * inst/doc/tm.Rnw: Fixed some typos in vignette.
514    
515    2007-06-03  Ingo Feinerer  <h0125130@wu-wien.ac.at>
516    
517            * R/textdoccol.R (replaceWords): Added method to replace a set of
518            words by a single word. Useful for synonyms.
519    
520    2007-05-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
521    
522            * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
523    
524    2007-05-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
525    
526            * R/termdocmatrix.R (textvector): Small fix for dealing with empty
527            vectors. Thanks to Ariel Maguyon for his error report.
528            (removeSparseTerms): New function to remove columns from a
529            term-document matrix exceeding a sparse factor.
530    
531    2007-05-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
532    
533            * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
534    
535    2007-05-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
536    
537            * man/sFilter.Rd: Corrected documentation on statement format (use
538            '==' instead of '=').
539    
540    2007-05-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
541    
542            * R/aobjects.R (StructuredTextDocument): Inherits from
543            TextDocument.
544    
545    2007-05-04  Ingo Feinerer  <h0125130@wu-wien.ac.at>
546    
547            * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
548            on sparse matrices as proposed by Martin Maechler.
549    
550    2007-04-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
551    
552            * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
553            \pkg{filehash} version makes them deprecated.
554    
555    2007-04-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
556    
557            * R/termdocmatrix.R (textvector): Stemming is now performed before
558            erasing stopwords.
559            (weightMatrix): Adapted to handle sparse matrices.
560            (TermDocMatrix): Sparse matrix is now efficiently built by
561            direct stepwise insertion of row values into it.
562    
563    2007-04-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
564    
565            * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
566            due to ongoing problems. For our purposes the latter is as useful
567            as the replaced package.
568    
569    2007-04-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>
570    
571            * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.
572    
573            * man/TermDocMatrix.Rd: Remove deprecated \code{language} argument.
574    
575    2007-04-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
576    
577            * R/resolve.R (resolveISOCode): Added ISO 639-1 codes for
578            languages with available stopwords.
579    
580    2007-04-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
581    
582            * inst/doc/tm.Rnw: Minor corrections in the vignette.
583    
584    2007-04-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
585    
586            * DESCRIPTION: Update to version 0.2, since a lot of new features
587            have been integrated.
588    
589            * inst/stopwords: Updated existing stopwords and added stopwords
590            for various other languages.
591    
592    2007-04-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
593    
594            * man/: Updated documentation.
595    
596            * Work/testDb.R: Script to test database stuff.
597    
598            * R/: Fixed various database related bugs. Seems to be rather
599            useable now, i.e., consider as alpha status for now.
600    
601    2007-04-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
602    
603            * R/: Fixed some bugs related to database support.
604    
605    2007-04-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
606    
607            * man/: Added a lot of examples to the manuals.
608    
609    2007-04-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
610    
611            * man/: Updated parts of the documentation.
612    
613            * R/textdoccol.R (asPlain): Added conversion from newsgroup
614            documents to plain text documents.
615    
616    2007-04-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
617    
618            * R/textdoccol.R: Finished experimental database support. Not yet
619            intensively tested.
620    
621            * R/source.R: Now each source has a default reader.
622    
623            * R/reader.R: \code{FunctionGenerator} is now an attribute, not a
624            class anymore.
625    
626            * R/plaintextdoc.R: Custom show method for plain text documents.
627    
628            * R/aobjects.R: Added a class for structured text documents.
629    
630            * R/reader.R: Replaced remaining \code{parser} occurrences with
631            \code{reader}.
632    
633            * R/textdoccol.R (summary): Indent tags.
634    
635            * R/textdoccol.R (removePunctuation): Transform method to remove
636            punctuation marks.
637    
638    2007-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
639    
640            * R/textdoccol.R (sFilter): Simplified sFilter significantly by
641            using prescindMeta().
642    
643  2007-03-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>  2007-03-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
644    
645          * R/textdoccol.R: Improved database support.          * R/textdoccol.R: Improved database support.

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