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trunk/R/textmin/ChangeLog revision 59, Tue Sep 26 12:24:09 2006 UTC pkg/ChangeLog revision 1023, Wed Nov 25 06:08:20 2009 UTC
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1    2009-11-25  Ingo Feinerer  <feinerer@logic.at>
2    
3            * R/matrix.R (termFreq): Add option to remove punctuation
4            characters.
5    
6    2009-11-19  Ingo Feinerer  <feinerer@logic.at>
7    
8            * R/matrix.R (c.TermDocumentMatrix): Added combine method for
9            merging multiple term-document matrices.
10    
11    2009-11-17  Ingo Feinerer  <feinerer@logic.at>
12    
13            * R/corpus.R (setOldClass): Register S3 corpus classes to be
14            recognized by S4 methods.
15    
16            * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
17            that CRAN Mac OS X builds do not fail any longer.
18    
19    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
20    
21            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
22            of RWeka:AlphabeticTokenizer() as default.
23    
24    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
25    
26            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
27            caused words at the beginning or the end of a line not to be removed. Do
28            not delete whitespace anymore.
29    
30    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
31    
32            * R/source.R (DirSource): Default to working directory if no path
33            is specified.
34    
35    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
36    
37            * R/source.R (DirSource): Stop on empty directories.
38    
39    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
40    
41            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
42            named documents.
43    
44    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
45    
46            * R/transform.R (removeWords): Improve regular expressions.
47    
48    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
49    
50            * R/meta.R (DublinCore): Allow lower case tags.
51    
52    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
53    
54            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
55            instead of x$children.
56    
57    2009-09-15  Ingo Feinerer  <feinerer@logic.at>
58    
59            * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
60    
61    2009-09-06  Ingo Feinerer  <feinerer@logic.at>
62    
63            * R/: Use S3 instead of S4 class system.
64    
65    2009-08-11  Ingo Feinerer  <feinerer@logic.at>
66    
67            * R/reader.R (readMail): Moved to tm.plugin.mail package.
68    
69    2009-07-04  Ingo Feinerer  <feinerer@logic.at>
70    
71            * R/reader.R (readNewsgroup): Rename to readMail as newsgroup
72            postings are basically e-mails with some extra headers.
73    
74    2009-07-03  Ingo Feinerer  <feinerer@logic.at>
75    
76            * R/transform.R: Move convertMboxEml, removeCitation,
77            removeMultipart, and removeSignature to the tm.plugin.mail package
78            since they are mainly utility functions (for handling e-mails) and
79            not very framework specific.
80    
81    2009-06-28  Ingo Feinerer  <feinerer@logic.at>
82    
83            * man/: Fix documentation.
84    
85    2009-06-26  Ingo Feinerer  <feinerer@logic.at>
86    
87            * R/reader.R (readReut21578XMLasPlain): New reader which returns a
88            plain text document instead of an XML document for texts of the
89            Reuters-21578 dataset.
90    
91            * R/sparse.R: Removed since the slam package is now available on
92            CRAN.
93    
94            * DESCRIPTION (Depends): Add slam package.
95    
96    2009-06-17  Ingo Feinerer  <feinerer@logic.at>
97    
98            * R/transform.R (stemDoc): Fix character(0) handling.
99    
100    2009-06-12  Ingo Feinerer  <feinerer@logic.at>
101    
102            * R/doc.R (show): Pretty print.
103    
104    2009-05-27  Ingo Feinerer  <feinerer@logic.at>
105    
106            * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
107            gracefully.
108    
109    2009-05-13  Ingo Feinerer  <feinerer@logic.at>
110    
111            * R/corpus.R: Make corpus virtual. Implement corpus with standard
112            and permanent storage semantics.
113    
114            * DESCRIPTION: New major release. A *lot* of improvements.
115    
116    2009-05-04   Ingo Feinerer <feinerer@logic.at>
117    
118            * NAMESPACE: Export some simple_triplet_matrix functions.
119    
120    2009-04-28   Ingo Feinerer <feinerer@logic.at>
121    
122            * R/weight.R: Adapt tf-idf to new matrix format.
123    
124    2009-04-27  Ingo Feinerer  <feinerer@logic.at>
125    
126            * R/matrix.R: Create two distinct classes for term-document and
127            document-term matrices.
128    
129    2009-04-26  Ingo Feinerer  <feinerer@logic.at>
130    
131            * R/termdocmatrix.R: No longer use Matrix package. This reduces
132            package start-up time significantly.
133    
134    2009-04-11  Ingo Feinerer  <feinerer@logic.at>
135    
136            * inst/doc/tm.Rnw: Fix code/documentation mismatch.
137    
138    2009-04-04  Ingo Feinerer  <feinerer@logic.at>
139    
140            * R/transform.R (tmReduce): Combine multiple maps into one
141            transformation.
142    
143    2009-04-03  Ingo Feinerer  <feinerer@logic.at>
144    
145            * R/weight.R: Remove weightLogical since it does not return a
146            dgCMatrix.
147    
148            * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
149            or TermDocumentMatrix instead.
150    
151    2009-03-28  Ingo Feinerer  <feinerer@logic.at>
152    
153            * inst/doc/extensions.Rnw: Finished vignette.
154    
155    2009-03-27  Ingo Feinerer  <feinerer@logic.at>
156    
157            * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
158            DocumentTermMatrix representations.
159    
160    2009-03-23  Ingo Feinerer  <feinerer@logic.at>
161    
162            * R/reader.R (readXML): New reader for arbitrary XML files.
163    
164    2009-03-22  Ingo Feinerer  <feinerer@logic.at>
165    
166            * R/source.R (CSVSource): Defunct (use DataframeSource instead).
167            (XMLSource): New XMLSource class for arbitrary XML files.
168            (Source): New slot Vectorized.
169    
170    2009-03-21  Ingo Feinerer  <feinerer@logic.at>
171    
172            * R/reader.R (readTabular): Experimental reader for tabular data
173            structures which can be customized via user-defined mappings.
174    
175            * R/reader.R: Always use UTC time zone.
176    
177            * R/AAA.R (.onLoad): No longer try to start a MPI cluster.
178    
179    2009-03-20  Ingo Feinerer  <feinerer@logic.at>
180    
181            * R/reader.R (readDOC): Options can be passed over to antiword.
182    
183            * R/reader.R (readPDF): Options can be passed over to pdfinfo and
184            pdftotext.
185    
186    2009-03-10  Ingo Feinerer  <feinerer@logic.at>
187    
188            * R/source.R (DirSource): Add pattern and ignore.case arguments
189            which are internally passed over to list.files().
190    
191    2009-03-02  Ingo Feinerer  <feinerer@logic.at>
192    
193            * inst/doc/tm.Rnw: Suppress pointless loading message.
194    
195    2009-01-29  Ingo Feinerer  <feinerer@logic.at>
196    
197            * DESCRIPTION: Speed up package loading (via moving packages not
198            strictly necessary for normal operation to Suggests instead of
199            Depends).
200    
201    2009-01-08  Ingo Feinerer  <feinerer@logic.at>
202    
203            * R/reader.R (readNewsgroup): The date format is now configurable.
204    
205    2008-12-20  Ingo Feinerer  <feinerer@logic.at>
206    
207            * R/preprocess.R (convertMboxEml): Fix off-by-one error.
208    
209    2008-12-16  Ingo Feinerer  <feinerer@logic.at>
210    
211            * R/termdocmatrix.R (TermDocMatrix): Sort row indices.
212    
213    2008-12-06  Ingo Feinerer  <feinerer@logic.at>
214    
215            * R/source.R (DataframeSource): New source class for data frames.
216    
217            * R/source.R: Fixed non-standard call evaluation.
218    
219    2008-11-29  Ingo Feinerer  <feinerer@logic.at>
220    
221            * R/source.R (URISource): New source class for a single document.
222    
223    2008-11-27  Ingo Feinerer  <feinerer@logic.at>
224    
225            * R/source.R: Refactoring.
226    
227    2008-11-25  Ingo Feinerer  <feinerer@logic.at>
228    
229            * R/AAA.R (.onLoad, .Last): Use tryCatch() to handle misconfigured
230            Rmpi installations more gracefully.
231    
232    2008-11-08  Ingo Feinerer  <feinerer@logic.at>
233    
234            * R/source.R (Source): Add Length slot.
235    
236    2008-11-06  Ingo Feinerer  <feinerer@logic.at>
237    
238            * R/AAA.R: Unify duplicated .onLoad function.
239    
240    2008-11-03  Ingo Feinerer  <feinerer@logic.at>
241    
242            * DESCRIPTION (Suggests): Added Rmpi.
243    
244    2008-11-02  Ingo Feinerer  <feinerer@logic.at>
245    
246            * R/source.R (getElem): Fix 'no visible binding' warning.
247    
248            * man/WeightFunction.Rd: Fix signature.
249    
250    2008-08-03  Ingo Feinerer  <feinerer@logic.at>
251    
252            * R/weight.R: Introduce name abbreviations for weighting functions.
253    
254    2008-07-24  Ingo Feinerer  <feinerer@logic.at>
255    
256            * R/AAA.R (.onLoad, .Last): Start and stop MPI cluster.
257    
258            * R/cluster.R: Provide convenience functions for using a MPI
259            cluster.
260    
261            * R/termdocmatrix.R (TermDocMatrix): Use MPI cluster if
262            available.
263    
264            * R/textdoccol.R (tmIndex, tmFilter, tmMap): Use MPI cluster if
265            available.
266    
267    2008-07-17  Ingo Feinerer  <feinerer@logic.at>
268    
269            * R/textdoccol.R (lapply): Removed debug print out.
270    
271    2008-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
272    
273            * R/reader.R (readRCV1): Improved meta data extraction from
274            Reuters Corpus Volume 1 documents.
275    
276    2008-05-25  Ingo Feinerer  <h0125130@wu-wien.ac.at>
277    
278            * R/transform.R: Ensure that all mappings preserve multiline
279            structures.
280    
281    2008-05-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
282    
283            * R/filter.R: Every filter has now an attribute indicating whether
284            it sould be applied to document level (doclevel).
285    
286            * R/textdoccol.R (tmFilter): Set searchFullText as new default
287            filter.
288    
289    2008-04-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
290    
291            * R/transform.R (replacePatterns): Replaced removeWords by
292            replacePatterns. Suggested by Christian Buchta.
293    
294            * R/textdoccol.R (inspect): Improved formatting.
295    
296    2008-04-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
297    
298            * inst/CITATION: Updated JSS article information.
299    
300            * R/textdoccol.R (setAs): Added coerce method from list to
301            corpus.
302    
303            * R/meta.R (meta): Improved meta data handling.
304    
305    2008-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
306    
307            * R/textdoccol.R (materialize, tmMap): Improvements suggested by
308            Christian Buchta.
309    
310            * inst/CITATION: Added template to include JSS article reference.
311    
312    2008-03-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
313    
314            * R/textdoccol.R (tmMap): Introduced lazy mapping.
315    
316            * R/source.R: Added VectorSource.
317    
318    2008-02-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
319    
320            * man/: Language codes should be in ISO 639-1 format.
321    
322            * R/textdoccol.R (asPlain): Preserve local meta data.
323    
324    2008-01-31  Ingo Feinerer  <h0125130@wu-wien.ac.at>
325    
326            * R/textdoccol.R (writeCorpus): Function for writing a corpus
327            containing plain text documents to disk.
328    
329    2008-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
330    
331            * R/termdocmatrix.R (TermDocMatrix): Ensure that dimnames are
332            always set correctly.
333    
334            * R/textdoccol.R: Set load = TRUE as default for load on demand
335            since in most cases this is the wanted behaviour.
336    
337    2008-01-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
338    
339            * R/: Renamed TextDocCol to Corpus, and Corpus to Content.
340    
341            * DESCRIPTION: Updated Version to 0.3 due to core name changes.
342    
343    2008-01-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
344    
345            * R/meta.R (meta): New function for consistent access to meta data
346            of document collections, repositories, and texts.
347    
348    2008-01-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
349    
350            * R/: Better support for encodings.
351    
352    2008-01-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
353    
354            * R/textdoccol.R (TextDocCol): Fixed bug regarding default reader
355            selection when no reader argument is given.
356    
357    2008-01-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
358    
359            * R/source.R (CSVSource): Now uses read.csv instead of scan
360            internally.
361    
362    2008-01-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
363    
364            * R/reader.R (getReaders): Returns available reader functions.
365    
366            * R/termdocmatrix.R (TermDocMatrix): Set new modular constructor
367            as default.
368    
369    2007-12-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
370    
371            * R/stopwords.R (stopwords): Shortened code, removed codetools
372            variable warnings.
373    
374            * man/: Documentation for showMeta, added an example for tmMap.
375    
376            * inst/doc/tm.Rnw: Updated vignette, comments on MS word reader,
377            some minor typos fixed.
378    
379    2007-12-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
380    
381            * R/aobjects.R (showMeta): Added method for pretty printing a
382            text document's meta data.
383    
384    2007-11-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
385    
386            * R/textdoccol.R (TextDocCol): Better handling of empty
387            arguments.
388    
389            * NAMESPACE: Exported readDOC.
390    
391            * man/completeStems.Rd: Added an example.
392    
393    2007-11-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
394    
395            * R/stopwords.R (stopwords): Look up .dat files at every
396            call. Allows users to modify stopword .dat files interactively.
397    
398    2007-11-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
399    
400            * R/termdocmatrix.R (termFreq): Correct processing of empty
401            documents.
402    
403    2007-10-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
404    
405            * man/: Updated documentation.
406    
407    2007-10-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
408    
409            * R/complete.R (completeStems): Completes (heuristically) word
410            stems.
411    
412            * R/termdocmatrix.R (TermDocMatrix2): New modular
413            constructor.
414    
415            * NAMESPACE: Exported termFreq.
416    
417    2007-10-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
418    
419            * R/reader.R (readDOC): Added MS Word reader (using antiword).
420    
421    2007-10-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
422    
423            * R/weight.R: Weighting functions for TermDocMatrix.
424    
425    2007-10-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
426    
427            * R/termdocmatrix.R (dimnames, colnames, rownames): Wrapper
428            functions for accessing dimension, column, and row names.
429    
430            * R/plot.R (plot.TermDocMatrix): Plot correlations between terms.
431    
432    2007-09-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
433    
434            * man/removePunctuation.Rd: Added documentation. Function also exported to NAMESPACE.
435    
436    2007-08-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
437    
438            * R/fungen.R: Use S4 class for function generators instead of S3 attributes.
439    
440    2007-07-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
441    
442            * R/reader.R (readPDF): Removed manual checks for pdftotext and
443            pdfinfo. The system call gives a warning anyway.
444    
445    2007-07-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
446    
447            * R/textdoccol.R (asPlain): Conversion from
448            StructuredTextDocuments to PlainTextDocuments.
449    
450    2007-07-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
451    
452            * R/termdocmatrix.R: Added convenience methods ("[", nrow, ncol)
453            for accessing term-document matrices.
454    
455            * inst/doc/tm.Rnw: readPDF is only called if pdftotext and pdfinfo
456            are installed.
457    
458    2007-07-17  Ingo Feinerer  <h0125130@wu-wien.ac.at>
459    
460            * R/termdocmatrix.R (TermDocMatrix): Improved efficiency. Kudos to
461            Christian Buchta.
462    
463    2007-07-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
464    
465            * inst/doc/tm.Rnw: Update vignette (readPDF, readHTML, preprocessReut21578XML).
466    
467    2007-07-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
468    
469            * R/reader.R (readHTML): Added very simple HTML reader to obtain StructuredTextDocuments.
470    
471            * R/reader.R (readPDF): Added PDF reader.
472    
473    2007-07-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
474    
475            * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
476    
477            * inst/stopwords/english.dat: Added the term "yes" to stopwords.
478    
479            * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
480    
481            * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
482    
483    2007-07-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
484    
485            * R/distmeasure.R (dissimilarity): Replaced dists call from
486            package cba by new dist call from package proxy.
487    
488    2007-07-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
489    
490            * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
491    
492    2007-06-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
493    
494            * R/termdocmatrix.R: require() uses the quietly option to suppress
495            loading messages.
496    
497    2007-06-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
498    
499            * R/dictionary.R: Added dictionary support.
500    
501    2007-06-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
502    
503            * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
504            documents. This simplifies some functions, e.g., asPlain.
505    
506    2007-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
507    
508            * inst/doc/tm.Rnw: Fixed some typos in vignette.
509    
510    2007-06-03  Ingo Feinerer  <h0125130@wu-wien.ac.at>
511    
512            * R/textdoccol.R (replaceWords): Added method to replace a set of
513            words by a single word. Useful for synonyms.
514    
515    2007-05-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
516    
517            * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
518    
519    2007-05-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
520    
521            * R/termdocmatrix.R (textvector): Small fix for dealing with empty
522            vectors. Thanks to Ariel Maguyon for his error report.
523            (removeSparseTerms): New function to remove columns from a
524            term-document matrix exceeding a sparse factor.
525    
526    2007-05-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
527    
528            * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
529    
530    2007-05-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
531    
532            * man/sFilter.Rd: Corrected documentation on statement format (use
533            '==' instead of '=').
534    
535    2007-05-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
536    
537            * R/aobjects.R (StructuredTextDocument): Inherits from
538            TextDocument.
539    
540    2007-05-04  Ingo Feinerer  <h0125130@wu-wien.ac.at>
541    
542            * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
543            on sparse matrices as proposed by Martin Maechler.
544    
545    2007-04-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
546    
547            * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
548            \pkg{filehash} version makes them deprecated.
549    
550    2007-04-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
551    
552            * R/termdocmatrix.R (textvector): Stemming is now performed before
553            erasing stopwords.
554            (weightMatrix): Adapted to handle sparse matrices.
555            (TermDocMatrix): Sparse matrix is now efficiently built by
556            direct stepwise insertion of row values into it.
557    
558    2007-04-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
559    
560            * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
561            due to ongoing problems. For our purposes the latter is as useful
562            as the replaced package.
563    
564    2007-04-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>
565    
566            * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.
567    
568            * man/TermDocMatrix.Rd: Remove deprecated \code{language} argument.
569    
570    2007-04-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
571    
572            * R/resolve.R (resolveISOCode): Added ISO 639-1 codes for
573            languages with available stopwords.
574    
575    2007-04-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
576    
577            * inst/doc/tm.Rnw: Minor corrections in the vignette.
578    
579    2007-04-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
580    
581            * DESCRIPTION: Update to version 0.2, since a lot of new features
582            have been integrated.
583    
584            * inst/stopwords: Updated existing stopwords and added stopwords
585            for various other languages.
586    
587    2007-04-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
588    
589            * man/: Updated documentation.
590    
591            * Work/testDb.R: Script to test database stuff.
592    
593            * R/: Fixed various database related bugs. Seems to be rather
594            useable now, i.e., consider as alpha status for now.
595    
596    2007-04-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
597    
598            * R/: Fixed some bugs related to database support.
599    
600    2007-04-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
601    
602            * man/: Added a lot of examples to the manuals.
603    
604    2007-04-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
605    
606            * man/: Updated parts of the documentation.
607    
608            * R/textdoccol.R (asPlain): Added conversion from newsgroup
609            documents to plain text documents.
610    
611    2007-04-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
612    
613            * R/textdoccol.R: Finished experimental database support. Not yet
614            intensively tested.
615    
616            * R/source.R: Now each source has a default reader.
617    
618            * R/reader.R: \code{FunctionGenerator} is now an attribute, not a
619            class anymore.
620    
621            * R/plaintextdoc.R: Custom show method for plain text documents.
622    
623            * R/aobjects.R: Added a class for structured text documents.
624    
625            * R/reader.R: Replaced remaining \code{parser} occurrences with
626            \code{reader}.
627    
628            * R/textdoccol.R (summary): Indent tags.
629    
630            * R/textdoccol.R (removePunctuation): Transform method to remove
631            punctuation marks.
632    
633    2007-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
634    
635            * R/textdoccol.R (sFilter): Simplified sFilter significantly by
636            using prescindMeta().
637    
638    2007-03-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
639    
640            * R/textdoccol.R: Improved database support.
641    
642    2007-03-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
643    
644            * R/termdocmatrix.R (TermDocMatrix): Uses sparse matrices.
645    
646            * R/resolve.R (resolveISOcode): Extracts the language from a ISO
647            language code.
648    
649            * R/textdoccol.R (TextDocCol): Refactored several parser arguments
650            into parserControl argument.
651    
652            * R/aobjects.R (TextDocument): Introduced the "Language" slot.
653    
654    2007-03-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
655    
656            * Work/tmDataSetup.R: The datasets acq and crude can now be
657            created on the fly.
658    
659            * R/stopwords.R: Introduced a function returning the stopwords for
660            a given language (English, German and French at the moment)
661    
662            * R/textdoccol.R (stemDoc): Stemming uses Rstem if available,
663            otherwise falls back to Snowball package.
664    
665    2007-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
666    
667            * man/dissimilarity-methods.Rd: Make clear that any method offered
668            by "dists" from package "cba" can be used.
669    
670    2007-01-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
671    
672            * inst/doc/tm.Rnw: Fixed quotes-appearing-as-boxes-bug according
673            to Kurt's latex suggestion. Removed points and underscores in
674            variable names for consistent naming.
675    
676            * DESCRIPTION: Update to version 0.1-2.
677    
678            * man/TextRepository.Rd: Fixed bug in documentation.
679    
680    2007-01-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
681    
682            * DESCRIPTION: Update to version 0.1-1.
683    
684    2007-01-09  Ingo Feinerer  <h0125130@wu-wien.ac.at>
685    
686            * R/textdoccol.R (stemDoc): Use Rstem::wordStem instead of
687            wordStem.
688    
689    2007-01-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
690    
691            * R/: Changes due to Kurt's review.
692    
693    2006-12-31  Ingo Feinerer  <h0125130@wu-wien.ac.at>
694    
695            * R/: Implemented improvements based upon comments by David
696            Meyer.
697    
698    2006-12-17  Ingo Feinerer  <h0125130@wu-wien.ac.at>
699    
700            * inst/doc/: Rewrote vignette.
701    
702            * man/: Improved documentation.
703    
704    2006-12-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
705    
706            * man/: Updated documentation.
707    
708            * DESCRIPTION: Changed package name to "tm". Updated version to
709            0.1 for first CRAN release.
710    
711            * inst/texts/gmane.comp.lang.r.general.mbox: mbox Gmane R mailing
712            list archive example.
713    
714            * inst/texts/gmane.comp.lang.r.gr.rdf: RSS Gmane R mailing list
715            archive example.
716    
717            * R/preprocess.R (convert_mbox_eml): A simple e-mail converter
718            from (several mails per box) mbox format to (single mail per file)
719            eml format.
720    
721    2006-12-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
722    
723            * data/crude.rda: Rebuilt.
724    
725            * data/acq.rda: Rebuilt.
726    
727            * R/reader.R: Factored out reader and parser methods from
728            textdoccol.R.
729    
730            * R/source.R: Factored out Source methods from aobjects.R and
731            textdoccol.R.
732            (GmaneRSource): Encapsulates Gmane R mailing list archive RSS
733            feeds.
734    
735            * R/textdoccol.R (DirSource): Added support for recursive
736            traversal of directories.
737    
738    2006-12-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
739    
740            * R/textdoccol.R ([[): Loads the document corpus automatically
741            into memory upon access.
742            (tm_transform, tm_filter): Removed several checks whether the
743            document is already loaded ([[ ensures this now).
744            (gmane_r_reader): Reader for RSS feeds as provided by the Gmane R
745            mailing list archive.
746    
747    2006-12-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
748    
749            * R/aobjects.R (TextDocument): Is now a virtual class.
750            (Source): Is now a virtual class.
751    
752    2006-12-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
753    
754            * R/textdoccol.R (c): Support for an arbitrary number of document
755            collections.
756    
757    2006-11-26  Ingo Feinerer  <h0125130@wu-wien.ac.at>
758    
759            * R/textrepo.R: Updated TextRepository (constructor), append_elem,
760            append_meta and remove_meta.
761    
762            * R/textdoccol.R: Removed modify_metadata method.
763    
764            * R/textrepo.R: Removed modify_metadata method.
765    
766            * R/textdoccol.R (remove_meta): Supports removal of document
767            collection metadata and document (= in data frame) metadata.
768    
769    2006-11-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
770    
771            * R/textdoccol.R (append_doc): Bug fix for handling empty metadata.
772    
773            * data/crude.rda: Rebuilt.
774    
775            * data/acq.rda: Rebuilt.
776    
777            * inst/doc/textmin.Rnw: Updated vignette to reflect code changes.
778    
779            * R/textdoccol.R ([): Bug fix for subsetting a document
780            collection's data frame.
781    
782    2006-11-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
783    
784            * R/textdoccol.R: Bug fixes in s_filter. Added full query support
785            to s_filter.
786    
787            * R/textdoccol.R: Local text documents' metadata can now be copied
788            to a document collection's data frame with prescind_meta.
789    
790    2006-11-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
791    
792            * R/: Text documents' slot metadata is now accessible in s_filter.
793    
794            * R/: Rewrote s_filter function (has still some restrictions).
795    
796    2006-11-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>
797    
798            * R/: Various fixes in handling metadata.
799    
800            * R/: Added update mechanism for text document collections.
801    
802    2006-11-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
803    
804            * R/: Merging of document collections now creates a binary tree
805            for reconstructing merged document collections.
806    
807            * R/: Redesign of metadata for document collections.
808    
809    2006-11-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
810    
811            * R/: Messages now use \code{ngettext}.
812    
813    2006-11-03  Ingo Feinerer  <h0125130@wu-wien.ac.at>
814    
815            * R/: Added functions for modifying and removing metadata.
816    
817    2006-11-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
818    
819            * man/: Updated some documentation.
820    
821            * R/: Corrected some connection issues.
822    
823            * inst/doc: Worked on the vignette.
824    
825    2006-10-31  Ingo Feinerer  <h0125130@wu-wien.ac.at>
826    
827            * inst/: Added texts and started vignette.
828    
829            * R/: Final changes based upon David's comments.
830    
831    2006-10-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
832    
833            * NAMESPACE: Corrected exports (generic methods need exportMethods
834            directives!).
835    
836    2006-10-26  Ingo Feinerer  <h0125130@wu-wien.ac.at>
837    
838            * R/: Modified the TextDocCol constructur and various parsers. It
839            is now modular and supports various file formats via plugins (see
840            the new "Source" class).
841    
842    2006-10-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
843    
844            * man/: Revised documentation after previous code changes.
845    
846    2006-10-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
847    
848            * R/: Remaining changes as discussed with David.
849    
850    2006-10-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
851    
852            * R/: Some changes as suggested by David. The rest will follow
853            within the next days.
854    
855  2006-09-26  Ingo Feinerer  <h0125130@wu-wien.ac.at>  2006-09-26  Ingo Feinerer  <h0125130@wu-wien.ac.at>
856    
857          * man/: Finished documentation.          * man/: Finished documentation.

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