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trunk/R/textmin/ChangeLog revision 59, Tue Sep 26 12:24:09 2006 UTC pkg/ChangeLog revision 945, Mon May 4 10:57:01 2009 UTC
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1    2009-05-04   Ingo Feinerer <feinerer@logic.at>
2    
3            * NAMESPACE: Export some simple_triplet_matrix functions.
4    
5    2009-04-28   Ingo Feinerer <feinerer@logic.at>
6    
7            * R/weight.R: Adapt tf-idf to new matrix format.
8    
9    2009-04-27  Ingo Feinerer  <feinerer@logic.at>
10    
11            * R/matrix.R: Create two distinct classes for term-document and
12            document-term matrices.
13    
14    2009-04-26  Ingo Feinerer  <feinerer@logic.at>
15    
16            * R/termdocmatrix.R: No longer use Matrix package. This reduces
17            package start-up time significantly.
18    
19    2009-04-11  Ingo Feinerer  <feinerer@logic.at>
20    
21            * inst/doc/tm.Rnw: Fix code/documentation mismatch.
22    
23    2009-04-04  Ingo Feinerer  <feinerer@logic.at>
24    
25            * R/transform.R (tmReduce): Combine multiple maps into one
26            transformation.
27    
28    2009-04-03  Ingo Feinerer  <feinerer@logic.at>
29    
30            * R/weight.R: Remove weightLogical since it does not return a
31            dgCMatrix.
32    
33            * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
34            or TermDocumentMatrix instead.
35    
36    2009-03-28  Ingo Feinerer  <feinerer@logic.at>
37    
38            * inst/doc/extensions.Rnw: Finished vignette.
39    
40    2009-03-27  Ingo Feinerer  <feinerer@logic.at>
41    
42            * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
43            DocumentTermMatrix representations.
44    
45    2009-03-23  Ingo Feinerer  <feinerer@logic.at>
46    
47            * R/reader.R (readXML): New reader for arbitrary XML files.
48    
49    2009-03-22  Ingo Feinerer  <feinerer@logic.at>
50    
51            * R/source.R (CSVSource): Defunct (use DataframeSource instead).
52            (XMLSource): New XMLSource class for arbitrary XML files.
53            (Source): New slot Vectorized.
54    
55    2009-03-21  Ingo Feinerer  <feinerer@logic.at>
56    
57            * R/reader.R (readTabular): Experimental reader for tabular data
58            structures which can be customized via user-defined mappings.
59    
60            * R/reader.R: Always use UTC time zone.
61    
62            * R/AAA.R (.onLoad): No longer try to start a MPI cluster.
63    
64    2009-03-20  Ingo Feinerer  <feinerer@logic.at>
65    
66            * R/reader.R (readDOC): Options can be passed over to antiword.
67    
68            * R/reader.R (readPDF): Options can be passed over to pdfinfo and
69            pdftotext.
70    
71    2009-03-10  Ingo Feinerer  <feinerer@logic.at>
72    
73            * R/source.R (DirSource): Add pattern and ignore.case arguments
74            which are internally passed over to list.files().
75    
76    2009-03-02  Ingo Feinerer  <feinerer@logic.at>
77    
78            * inst/doc/tm.Rnw: Suppress pointless loading message.
79    
80    2009-01-29  Ingo Feinerer  <feinerer@logic.at>
81    
82            * DESCRIPTION: Speed up package loading (via moving packages not
83            strictly necessary for normal operation to Suggests instead of
84            Depends).
85    
86    2009-01-08  Ingo Feinerer  <feinerer@logic.at>
87    
88            * R/reader.R (readNewsgroup): The date format is now configurable.
89    
90    2008-12-20  Ingo Feinerer  <feinerer@logic.at>
91    
92            * R/preprocess.R (convertMboxEml): Fix off-by-one error.
93    
94    2008-12-16  Ingo Feinerer  <feinerer@logic.at>
95    
96            * R/termdocmatrix.R (TermDocMatrix): Sort row indices.
97    
98    2008-12-06  Ingo Feinerer  <feinerer@logic.at>
99    
100            * R/source.R (DataframeSource): New source class for data frames.
101    
102            * R/source.R: Fixed non-standard call evaluation.
103    
104    2008-11-29  Ingo Feinerer  <feinerer@logic.at>
105    
106            * R/source.R (URISource): New source class for a single document.
107    
108    2008-11-27  Ingo Feinerer  <feinerer@logic.at>
109    
110            * R/source.R: Refactoring.
111    
112    2008-11-25  Ingo Feinerer  <feinerer@logic.at>
113    
114            * R/AAA.R (.onLoad, .Last): Use tryCatch() to handle misconfigured
115            Rmpi installations more gracefully.
116    
117    2008-11-08  Ingo Feinerer  <feinerer@logic.at>
118    
119            * R/source.R (Source): Add Length slot.
120    
121    2008-11-06  Ingo Feinerer  <feinerer@logic.at>
122    
123            * R/AAA.R: Unify duplicated .onLoad function.
124    
125    2008-11-03  Ingo Feinerer  <feinerer@logic.at>
126    
127            * DESCRIPTION (Suggests): Added Rmpi.
128    
129    2008-11-02  Ingo Feinerer  <feinerer@logic.at>
130    
131            * R/source.R (getElem): Fix 'no visible binding' warning.
132    
133            * man/WeightFunction.Rd: Fix signature.
134    
135    2008-08-03  Ingo Feinerer  <feinerer@logic.at>
136    
137            * R/weight.R: Introduce name abbreviations for weighting functions.
138    
139    2008-07-24  Ingo Feinerer  <feinerer@logic.at>
140    
141            * R/AAA.R (.onLoad, .Last): Start and stop MPI cluster.
142    
143            * R/cluster.R: Provide convenience functions for using a MPI
144            cluster.
145    
146            * R/termdocmatrix.R (TermDocMatrix): Use MPI cluster if
147            available.
148    
149            * R/textdoccol.R (tmIndex, tmFilter, tmMap): Use MPI cluster if
150            available.
151    
152    2008-07-17  Ingo Feinerer  <feinerer@logic.at>
153    
154            * R/textdoccol.R (lapply): Removed debug print out.
155    
156    2008-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
157    
158            * R/reader.R (readRCV1): Improved meta data extraction from
159            Reuters Corpus Volume 1 documents.
160    
161    2008-05-25  Ingo Feinerer  <h0125130@wu-wien.ac.at>
162    
163            * R/transform.R: Ensure that all mappings preserve multiline
164            structures.
165    
166    2008-05-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
167    
168            * R/filter.R: Every filter has now an attribute indicating whether
169            it sould be applied to document level (doclevel).
170    
171            * R/textdoccol.R (tmFilter): Set searchFullText as new default
172            filter.
173    
174    2008-04-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
175    
176            * R/transform.R (replacePatterns): Replaced removeWords by
177            replacePatterns. Suggested by Christian Buchta.
178    
179            * R/textdoccol.R (inspect): Improved formatting.
180    
181    2008-04-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
182    
183            * inst/CITATION: Updated JSS article information.
184    
185            * R/textdoccol.R (setAs): Added coerce method from list to
186            corpus.
187    
188            * R/meta.R (meta): Improved meta data handling.
189    
190    2008-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
191    
192            * R/textdoccol.R (materialize, tmMap): Improvements suggested by
193            Christian Buchta.
194    
195            * inst/CITATION: Added template to include JSS article reference.
196    
197    2008-03-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
198    
199            * R/textdoccol.R (tmMap): Introduced lazy mapping.
200    
201            * R/source.R: Added VectorSource.
202    
203    2008-02-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
204    
205            * man/: Language codes should be in ISO 639-1 format.
206    
207            * R/textdoccol.R (asPlain): Preserve local meta data.
208    
209    2008-01-31  Ingo Feinerer  <h0125130@wu-wien.ac.at>
210    
211            * R/textdoccol.R (writeCorpus): Function for writing a corpus
212            containing plain text documents to disk.
213    
214    2008-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
215    
216            * R/termdocmatrix.R (TermDocMatrix): Ensure that dimnames are
217            always set correctly.
218    
219            * R/textdoccol.R: Set load = TRUE as default for load on demand
220            since in most cases this is the wanted behaviour.
221    
222    2008-01-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
223    
224            * R/: Renamed TextDocCol to Corpus, and Corpus to Content.
225    
226            * DESCRIPTION: Updated Version to 0.3 due to core name changes.
227    
228    2008-01-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
229    
230            * R/meta.R (meta): New function for consistent access to meta data
231            of document collections, repositories, and texts.
232    
233    2008-01-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
234    
235            * R/: Better support for encodings.
236    
237    2008-01-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
238    
239            * R/textdoccol.R (TextDocCol): Fixed bug regarding default reader
240            selection when no reader argument is given.
241    
242    2008-01-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
243    
244            * R/source.R (CSVSource): Now uses read.csv instead of scan
245            internally.
246    
247    2008-01-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
248    
249            * R/reader.R (getReaders): Returns available reader functions.
250    
251            * R/termdocmatrix.R (TermDocMatrix): Set new modular constructor
252            as default.
253    
254    2007-12-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
255    
256            * R/stopwords.R (stopwords): Shortened code, removed codetools
257            variable warnings.
258    
259            * man/: Documentation for showMeta, added an example for tmMap.
260    
261            * inst/doc/tm.Rnw: Updated vignette, comments on MS word reader,
262            some minor typos fixed.
263    
264    2007-12-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
265    
266            * R/aobjects.R (showMeta): Added method for pretty printing a
267            text document's meta data.
268    
269    2007-11-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
270    
271            * R/textdoccol.R (TextDocCol): Better handling of empty
272            arguments.
273    
274            * NAMESPACE: Exported readDOC.
275    
276            * man/completeStems.Rd: Added an example.
277    
278    2007-11-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
279    
280            * R/stopwords.R (stopwords): Look up .dat files at every
281            call. Allows users to modify stopword .dat files interactively.
282    
283    2007-11-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
284    
285            * R/termdocmatrix.R (termFreq): Correct processing of empty
286            documents.
287    
288    2007-10-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
289    
290            * man/: Updated documentation.
291    
292    2007-10-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
293    
294            * R/complete.R (completeStems): Completes (heuristically) word
295            stems.
296    
297            * R/termdocmatrix.R (TermDocMatrix2): New modular
298            constructor.
299    
300            * NAMESPACE: Exported termFreq.
301    
302    2007-10-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
303    
304            * R/reader.R (readDOC): Added MS Word reader (using antiword).
305    
306    2007-10-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
307    
308            * R/weight.R: Weighting functions for TermDocMatrix.
309    
310    2007-10-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
311    
312            * R/termdocmatrix.R (dimnames, colnames, rownames): Wrapper
313            functions for accessing dimension, column, and row names.
314    
315            * R/plot.R (plot.TermDocMatrix): Plot correlations between terms.
316    
317    2007-09-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
318    
319            * man/removePunctuation.Rd: Added documentation. Function also exported to NAMESPACE.
320    
321    2007-08-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
322    
323            * R/fungen.R: Use S4 class for function generators instead of S3 attributes.
324    
325    2007-07-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
326    
327            * R/reader.R (readPDF): Removed manual checks for pdftotext and
328            pdfinfo. The system call gives a warning anyway.
329    
330    2007-07-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
331    
332            * R/textdoccol.R (asPlain): Conversion from
333            StructuredTextDocuments to PlainTextDocuments.
334    
335    2007-07-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
336    
337            * R/termdocmatrix.R: Added convenience methods ("[", nrow, ncol)
338            for accessing term-document matrices.
339    
340            * inst/doc/tm.Rnw: readPDF is only called if pdftotext and pdfinfo
341            are installed.
342    
343    2007-07-17  Ingo Feinerer  <h0125130@wu-wien.ac.at>
344    
345            * R/termdocmatrix.R (TermDocMatrix): Improved efficiency. Kudos to
346            Christian Buchta.
347    
348    2007-07-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
349    
350            * inst/doc/tm.Rnw: Update vignette (readPDF, readHTML, preprocessReut21578XML).
351    
352    2007-07-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
353    
354            * R/reader.R (readHTML): Added very simple HTML reader to obtain StructuredTextDocuments.
355    
356            * R/reader.R (readPDF): Added PDF reader.
357    
358    2007-07-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
359    
360            * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
361    
362            * inst/stopwords/english.dat: Added the term "yes" to stopwords.
363    
364            * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
365    
366            * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
367    
368    2007-07-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
369    
370            * R/distmeasure.R (dissimilarity): Replaced dists call from
371            package cba by new dist call from package proxy.
372    
373    2007-07-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
374    
375            * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
376    
377    2007-06-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
378    
379            * R/termdocmatrix.R: require() uses the quietly option to suppress
380            loading messages.
381    
382    2007-06-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
383    
384            * R/dictionary.R: Added dictionary support.
385    
386    2007-06-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
387    
388            * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
389            documents. This simplifies some functions, e.g., asPlain.
390    
391    2007-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
392    
393            * inst/doc/tm.Rnw: Fixed some typos in vignette.
394    
395    2007-06-03  Ingo Feinerer  <h0125130@wu-wien.ac.at>
396    
397            * R/textdoccol.R (replaceWords): Added method to replace a set of
398            words by a single word. Useful for synonyms.
399    
400    2007-05-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
401    
402            * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
403    
404    2007-05-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
405    
406            * R/termdocmatrix.R (textvector): Small fix for dealing with empty
407            vectors. Thanks to Ariel Maguyon for his error report.
408            (removeSparseTerms): New function to remove columns from a
409            term-document matrix exceeding a sparse factor.
410    
411    2007-05-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
412    
413            * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
414    
415    2007-05-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
416    
417            * man/sFilter.Rd: Corrected documentation on statement format (use
418            '==' instead of '=').
419    
420    2007-05-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
421    
422            * R/aobjects.R (StructuredTextDocument): Inherits from
423            TextDocument.
424    
425    2007-05-04  Ingo Feinerer  <h0125130@wu-wien.ac.at>
426    
427            * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
428            on sparse matrices as proposed by Martin Maechler.
429    
430    2007-04-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
431    
432            * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
433            \pkg{filehash} version makes them deprecated.
434    
435    2007-04-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
436    
437            * R/termdocmatrix.R (textvector): Stemming is now performed before
438            erasing stopwords.
439            (weightMatrix): Adapted to handle sparse matrices.
440            (TermDocMatrix): Sparse matrix is now efficiently built by
441            direct stepwise insertion of row values into it.
442    
443    2007-04-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
444    
445            * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
446            due to ongoing problems. For our purposes the latter is as useful
447            as the replaced package.
448    
449    2007-04-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>
450    
451            * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.
452    
453            * man/TermDocMatrix.Rd: Remove deprecated \code{language} argument.
454    
455    2007-04-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
456    
457            * R/resolve.R (resolveISOCode): Added ISO 639-1 codes for
458            languages with available stopwords.
459    
460    2007-04-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
461    
462            * inst/doc/tm.Rnw: Minor corrections in the vignette.
463    
464    2007-04-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
465    
466            * DESCRIPTION: Update to version 0.2, since a lot of new features
467            have been integrated.
468    
469            * inst/stopwords: Updated existing stopwords and added stopwords
470            for various other languages.
471    
472    2007-04-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
473    
474            * man/: Updated documentation.
475    
476            * Work/testDb.R: Script to test database stuff.
477    
478            * R/: Fixed various database related bugs. Seems to be rather
479            useable now, i.e., consider as alpha status for now.
480    
481    2007-04-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
482    
483            * R/: Fixed some bugs related to database support.
484    
485    2007-04-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
486    
487            * man/: Added a lot of examples to the manuals.
488    
489    2007-04-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
490    
491            * man/: Updated parts of the documentation.
492    
493            * R/textdoccol.R (asPlain): Added conversion from newsgroup
494            documents to plain text documents.
495    
496    2007-04-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
497    
498            * R/textdoccol.R: Finished experimental database support. Not yet
499            intensively tested.
500    
501            * R/source.R: Now each source has a default reader.
502    
503            * R/reader.R: \code{FunctionGenerator} is now an attribute, not a
504            class anymore.
505    
506            * R/plaintextdoc.R: Custom show method for plain text documents.
507    
508            * R/aobjects.R: Added a class for structured text documents.
509    
510            * R/reader.R: Replaced remaining \code{parser} occurrences with
511            \code{reader}.
512    
513            * R/textdoccol.R (summary): Indent tags.
514    
515            * R/textdoccol.R (removePunctuation): Transform method to remove
516            punctuation marks.
517    
518    2007-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
519    
520            * R/textdoccol.R (sFilter): Simplified sFilter significantly by
521            using prescindMeta().
522    
523    2007-03-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
524    
525            * R/textdoccol.R: Improved database support.
526    
527    2007-03-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
528    
529            * R/termdocmatrix.R (TermDocMatrix): Uses sparse matrices.
530    
531            * R/resolve.R (resolveISOcode): Extracts the language from a ISO
532            language code.
533    
534            * R/textdoccol.R (TextDocCol): Refactored several parser arguments
535            into parserControl argument.
536    
537            * R/aobjects.R (TextDocument): Introduced the "Language" slot.
538    
539    2007-03-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
540    
541            * Work/tmDataSetup.R: The datasets acq and crude can now be
542            created on the fly.
543    
544            * R/stopwords.R: Introduced a function returning the stopwords for
545            a given language (English, German and French at the moment)
546    
547            * R/textdoccol.R (stemDoc): Stemming uses Rstem if available,
548            otherwise falls back to Snowball package.
549    
550    2007-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
551    
552            * man/dissimilarity-methods.Rd: Make clear that any method offered
553            by "dists" from package "cba" can be used.
554    
555    2007-01-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
556    
557            * inst/doc/tm.Rnw: Fixed quotes-appearing-as-boxes-bug according
558            to Kurt's latex suggestion. Removed points and underscores in
559            variable names for consistent naming.
560    
561            * DESCRIPTION: Update to version 0.1-2.
562    
563            * man/TextRepository.Rd: Fixed bug in documentation.
564    
565    2007-01-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
566    
567            * DESCRIPTION: Update to version 0.1-1.
568    
569    2007-01-09  Ingo Feinerer  <h0125130@wu-wien.ac.at>
570    
571            * R/textdoccol.R (stemDoc): Use Rstem::wordStem instead of
572            wordStem.
573    
574    2007-01-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
575    
576            * R/: Changes due to Kurt's review.
577    
578    2006-12-31  Ingo Feinerer  <h0125130@wu-wien.ac.at>
579    
580            * R/: Implemented improvements based upon comments by David
581            Meyer.
582    
583    2006-12-17  Ingo Feinerer  <h0125130@wu-wien.ac.at>
584    
585            * inst/doc/: Rewrote vignette.
586    
587            * man/: Improved documentation.
588    
589    2006-12-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
590    
591            * man/: Updated documentation.
592    
593            * DESCRIPTION: Changed package name to "tm". Updated version to
594            0.1 for first CRAN release.
595    
596            * inst/texts/gmane.comp.lang.r.general.mbox: mbox Gmane R mailing
597            list archive example.
598    
599            * inst/texts/gmane.comp.lang.r.gr.rdf: RSS Gmane R mailing list
600            archive example.
601    
602            * R/preprocess.R (convert_mbox_eml): A simple e-mail converter
603            from (several mails per box) mbox format to (single mail per file)
604            eml format.
605    
606    2006-12-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
607    
608            * data/crude.rda: Rebuilt.
609    
610            * data/acq.rda: Rebuilt.
611    
612            * R/reader.R: Factored out reader and parser methods from
613            textdoccol.R.
614    
615            * R/source.R: Factored out Source methods from aobjects.R and
616            textdoccol.R.
617            (GmaneRSource): Encapsulates Gmane R mailing list archive RSS
618            feeds.
619    
620            * R/textdoccol.R (DirSource): Added support for recursive
621            traversal of directories.
622    
623    2006-12-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
624    
625            * R/textdoccol.R ([[): Loads the document corpus automatically
626            into memory upon access.
627            (tm_transform, tm_filter): Removed several checks whether the
628            document is already loaded ([[ ensures this now).
629            (gmane_r_reader): Reader for RSS feeds as provided by the Gmane R
630            mailing list archive.
631    
632    2006-12-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
633    
634            * R/aobjects.R (TextDocument): Is now a virtual class.
635            (Source): Is now a virtual class.
636    
637    2006-12-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
638    
639            * R/textdoccol.R (c): Support for an arbitrary number of document
640            collections.
641    
642    2006-11-26  Ingo Feinerer  <h0125130@wu-wien.ac.at>
643    
644            * R/textrepo.R: Updated TextRepository (constructor), append_elem,
645            append_meta and remove_meta.
646    
647            * R/textdoccol.R: Removed modify_metadata method.
648    
649            * R/textrepo.R: Removed modify_metadata method.
650    
651            * R/textdoccol.R (remove_meta): Supports removal of document
652            collection metadata and document (= in data frame) metadata.
653    
654    2006-11-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
655    
656            * R/textdoccol.R (append_doc): Bug fix for handling empty metadata.
657    
658            * data/crude.rda: Rebuilt.
659    
660            * data/acq.rda: Rebuilt.
661    
662            * inst/doc/textmin.Rnw: Updated vignette to reflect code changes.
663    
664            * R/textdoccol.R ([): Bug fix for subsetting a document
665            collection's data frame.
666    
667    2006-11-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
668    
669            * R/textdoccol.R: Bug fixes in s_filter. Added full query support
670            to s_filter.
671    
672            * R/textdoccol.R: Local text documents' metadata can now be copied
673            to a document collection's data frame with prescind_meta.
674    
675    2006-11-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
676    
677            * R/: Text documents' slot metadata is now accessible in s_filter.
678    
679            * R/: Rewrote s_filter function (has still some restrictions).
680    
681    2006-11-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>
682    
683            * R/: Various fixes in handling metadata.
684    
685            * R/: Added update mechanism for text document collections.
686    
687    2006-11-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
688    
689            * R/: Merging of document collections now creates a binary tree
690            for reconstructing merged document collections.
691    
692            * R/: Redesign of metadata for document collections.
693    
694    2006-11-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
695    
696            * R/: Messages now use \code{ngettext}.
697    
698    2006-11-03  Ingo Feinerer  <h0125130@wu-wien.ac.at>
699    
700            * R/: Added functions for modifying and removing metadata.
701    
702    2006-11-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
703    
704            * man/: Updated some documentation.
705    
706            * R/: Corrected some connection issues.
707    
708            * inst/doc: Worked on the vignette.
709    
710    2006-10-31  Ingo Feinerer  <h0125130@wu-wien.ac.at>
711    
712            * inst/: Added texts and started vignette.
713    
714            * R/: Final changes based upon David's comments.
715    
716    2006-10-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
717    
718            * NAMESPACE: Corrected exports (generic methods need exportMethods
719            directives!).
720    
721    2006-10-26  Ingo Feinerer  <h0125130@wu-wien.ac.at>
722    
723            * R/: Modified the TextDocCol constructur and various parsers. It
724            is now modular and supports various file formats via plugins (see
725            the new "Source" class).
726    
727    2006-10-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
728    
729            * man/: Revised documentation after previous code changes.
730    
731    2006-10-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
732    
733            * R/: Remaining changes as discussed with David.
734    
735    2006-10-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
736    
737            * R/: Some changes as suggested by David. The rest will follow
738            within the next days.
739    
740  2006-09-26  Ingo Feinerer  <h0125130@wu-wien.ac.at>  2006-09-26  Ingo Feinerer  <h0125130@wu-wien.ac.at>
741    
742          * man/: Finished documentation.          * man/: Finished documentation.

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