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trunk/R/trunk/ChangeLog revision 37, Wed Jan 11 17:49:17 2006 UTC pkg/ChangeLog revision 905, Sat Mar 21 10:13:08 2009 UTC
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1    2009-03-21  Ingo Feinerer  <feinerer@logic.at>
2    
3            * R/reader.R: Always use UTC time zone.
4    
5            * R/AAA.R (.onLoad): No longer try to start a MPI cluster.
6    
7    2009-03-20  Ingo Feinerer  <feinerer@logic.at>
8    
9            * R/reader.R (readDOC): Options can be passed over to antiword.
10    
11            * R/reader.R (readPDF): Options can be passed over to pdfinfo and
12            pdftotext.
13    
14    2009-03-10  Ingo Feinerer  <feinerer@logic.at>
15    
16            * R/source.R (DirSource): Add pattern and ignore.case arguments
17            which are internally passed over to list.files().
18    
19    2009-03-02  Ingo Feinerer  <feinerer@logic.at>
20    
21            * inst/doc/tm.Rnw: Suppress pointless loading message.
22    
23    2009-01-29  Ingo Feinerer  <feinerer@logic.at>
24    
25            * DESCRIPTION: Speed up package loading (via moving packages not
26            strictly necessary for normal operation to Suggests instead of
27            Depends).
28    
29    2009-01-08  Ingo Feinerer  <feinerer@logic.at>
30    
31            * R/reader.R (readNewsgroup): The date format is now configurable.
32    
33    2008-12-20  Ingo Feinerer  <feinerer@logic.at>
34    
35            * R/preprocess.R (convertMboxEml): Fix off-by-one error.
36    
37    2008-12-16  Ingo Feinerer  <feinerer@logic.at>
38    
39            * R/termdocmatrix.R (TermDocMatrix): Sort row indices.
40    
41    2008-12-06  Ingo Feinerer  <feinerer@logic.at>
42    
43            * R/source.R (DataframeSource): New source class for data frames.
44    
45            * R/source.R: Fixed non-standard call evaluation.
46    
47    2008-11-29  Ingo Feinerer  <feinerer@logic.at>
48    
49            * R/source.R (URISource): New source class for a single document.
50    
51    2008-11-27  Ingo Feinerer  <feinerer@logic.at>
52    
53            * R/source.R: Refactoring.
54    
55    2008-11-25  Ingo Feinerer  <feinerer@logic.at>
56    
57            * R/AAA.R (.onLoad, .Last): Use tryCatch() to handle misconfigured
58            Rmpi installations more gracefully.
59    
60    2008-11-08  Ingo Feinerer  <feinerer@logic.at>
61    
62            * R/source.R (Source): Add Length slot.
63    
64    2008-11-06  Ingo Feinerer  <feinerer@logic.at>
65    
66            * R/AAA.R: Unify duplicated .onLoad function.
67    
68    2008-11-03  Ingo Feinerer  <feinerer@logic.at>
69    
70            * DESCRIPTION (Suggests): Added Rmpi.
71    
72    2008-11-02  Ingo Feinerer  <feinerer@logic.at>
73    
74            * R/source.R (getElem): Fix 'no visible binding' warning.
75    
76            * man/WeightFunction.Rd: Fix signature.
77    
78    2008-08-03  Ingo Feinerer  <feinerer@logic.at>
79    
80            * R/weight.R: Introduce name abbreviations for weighting functions.
81    
82    2008-07-24  Ingo Feinerer  <feinerer@logic.at>
83    
84            * R/AAA.R (.onLoad, .Last): Start and stop MPI cluster.
85    
86            * R/cluster.R: Provide convenience functions for using a MPI
87            cluster.
88    
89            * R/termdocmatrix.R (TermDocMatrix): Use MPI cluster if
90            available.
91    
92            * R/textdoccol.R (tmIndex, tmFilter, tmMap): Use MPI cluster if
93            available.
94    
95    2008-07-17  Ingo Feinerer  <feinerer@logic.at>
96    
97            * R/textdoccol.R (lapply): Removed debug print out.
98    
99    2008-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
100    
101            * R/reader.R (readRCV1): Improved meta data extraction from
102            Reuters Corpus Volume 1 documents.
103    
104    2008-05-25  Ingo Feinerer  <h0125130@wu-wien.ac.at>
105    
106            * R/transform.R: Ensure that all mappings preserve multiline
107            structures.
108    
109    2008-05-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
110    
111            * R/filter.R: Every filter has now an attribute indicating whether
112            it sould be applied to document level (doclevel).
113    
114            * R/textdoccol.R (tmFilter): Set searchFullText as new default
115            filter.
116    
117    2008-04-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
118    
119            * R/transform.R (replacePatterns): Replaced removeWords by
120            replacePatterns. Suggested by Christian Buchta.
121    
122            * R/textdoccol.R (inspect): Improved formatting.
123    
124    2008-04-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
125    
126            * inst/CITATION: Updated JSS article information.
127    
128            * R/textdoccol.R (setAs): Added coerce method from list to
129            corpus.
130    
131            * R/meta.R (meta): Improved meta data handling.
132    
133    2008-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
134    
135            * R/textdoccol.R (materialize, tmMap): Improvements suggested by
136            Christian Buchta.
137    
138            * inst/CITATION: Added template to include JSS article reference.
139    
140    2008-03-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
141    
142            * R/textdoccol.R (tmMap): Introduced lazy mapping.
143    
144            * R/source.R: Added VectorSource.
145    
146    2008-02-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
147    
148            * man/: Language codes should be in ISO 639-1 format.
149    
150            * R/textdoccol.R (asPlain): Preserve local meta data.
151    
152    2008-01-31  Ingo Feinerer  <h0125130@wu-wien.ac.at>
153    
154            * R/textdoccol.R (writeCorpus): Function for writing a corpus
155            containing plain text documents to disk.
156    
157    2008-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
158    
159            * R/termdocmatrix.R (TermDocMatrix): Ensure that dimnames are
160            always set correctly.
161    
162            * R/textdoccol.R: Set load = TRUE as default for load on demand
163            since in most cases this is the wanted behaviour.
164    
165    2008-01-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
166    
167            * R/: Renamed TextDocCol to Corpus, and Corpus to Content.
168    
169            * DESCRIPTION: Updated Version to 0.3 due to core name changes.
170    
171    2008-01-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
172    
173            * R/meta.R (meta): New function for consistent access to meta data
174            of document collections, repositories, and texts.
175    
176    2008-01-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
177    
178            * R/: Better support for encodings.
179    
180    2008-01-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
181    
182            * R/textdoccol.R (TextDocCol): Fixed bug regarding default reader
183            selection when no reader argument is given.
184    
185    2008-01-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
186    
187            * R/source.R (CSVSource): Now uses read.csv instead of scan
188            internally.
189    
190    2008-01-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
191    
192            * R/reader.R (getReaders): Returns available reader functions.
193    
194            * R/termdocmatrix.R (TermDocMatrix): Set new modular constructor
195            as default.
196    
197    2007-12-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
198    
199            * R/stopwords.R (stopwords): Shortened code, removed codetools
200            variable warnings.
201    
202            * man/: Documentation for showMeta, added an example for tmMap.
203    
204            * inst/doc/tm.Rnw: Updated vignette, comments on MS word reader,
205            some minor typos fixed.
206    
207    2007-12-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
208    
209            * R/aobjects.R (showMeta): Added method for pretty printing a
210            text document's meta data.
211    
212    2007-11-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
213    
214            * R/textdoccol.R (TextDocCol): Better handling of empty
215            arguments.
216    
217            * NAMESPACE: Exported readDOC.
218    
219            * man/completeStems.Rd: Added an example.
220    
221    2007-11-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
222    
223            * R/stopwords.R (stopwords): Look up .dat files at every
224            call. Allows users to modify stopword .dat files interactively.
225    
226    2007-11-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
227    
228            * R/termdocmatrix.R (termFreq): Correct processing of empty
229            documents.
230    
231    2007-10-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
232    
233            * man/: Updated documentation.
234    
235    2007-10-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
236    
237            * R/complete.R (completeStems): Completes (heuristically) word
238            stems.
239    
240            * R/termdocmatrix.R (TermDocMatrix2): New modular
241            constructor.
242    
243            * NAMESPACE: Exported termFreq.
244    
245    2007-10-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
246    
247            * R/reader.R (readDOC): Added MS Word reader (using antiword).
248    
249    2007-10-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
250    
251            * R/weight.R: Weighting functions for TermDocMatrix.
252    
253    2007-10-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
254    
255            * R/termdocmatrix.R (dimnames, colnames, rownames): Wrapper
256            functions for accessing dimension, column, and row names.
257    
258            * R/plot.R (plot.TermDocMatrix): Plot correlations between terms.
259    
260    2007-09-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
261    
262            * man/removePunctuation.Rd: Added documentation. Function also exported to NAMESPACE.
263    
264    2007-08-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
265    
266            * R/fungen.R: Use S4 class for function generators instead of S3 attributes.
267    
268    2007-07-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
269    
270            * R/reader.R (readPDF): Removed manual checks for pdftotext and
271            pdfinfo. The system call gives a warning anyway.
272    
273    2007-07-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
274    
275            * R/textdoccol.R (asPlain): Conversion from
276            StructuredTextDocuments to PlainTextDocuments.
277    
278    2007-07-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
279    
280            * R/termdocmatrix.R: Added convenience methods ("[", nrow, ncol)
281            for accessing term-document matrices.
282    
283            * inst/doc/tm.Rnw: readPDF is only called if pdftotext and pdfinfo
284            are installed.
285    
286    2007-07-17  Ingo Feinerer  <h0125130@wu-wien.ac.at>
287    
288            * R/termdocmatrix.R (TermDocMatrix): Improved efficiency. Kudos to
289            Christian Buchta.
290    
291    2007-07-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
292    
293            * inst/doc/tm.Rnw: Update vignette (readPDF, readHTML, preprocessReut21578XML).
294    
295    2007-07-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
296    
297            * R/reader.R (readHTML): Added very simple HTML reader to obtain StructuredTextDocuments.
298    
299            * R/reader.R (readPDF): Added PDF reader.
300    
301    2007-07-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
302    
303            * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
304    
305            * inst/stopwords/english.dat: Added the term "yes" to stopwords.
306    
307            * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
308    
309            * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
310    
311    2007-07-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
312    
313            * R/distmeasure.R (dissimilarity): Replaced dists call from
314            package cba by new dist call from package proxy.
315    
316    2007-07-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
317    
318            * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
319    
320    2007-06-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
321    
322            * R/termdocmatrix.R: require() uses the quietly option to suppress
323            loading messages.
324    
325    2007-06-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
326    
327            * R/dictionary.R: Added dictionary support.
328    
329    2007-06-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
330    
331            * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
332            documents. This simplifies some functions, e.g., asPlain.
333    
334    2007-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
335    
336            * inst/doc/tm.Rnw: Fixed some typos in vignette.
337    
338    2007-06-03  Ingo Feinerer  <h0125130@wu-wien.ac.at>
339    
340            * R/textdoccol.R (replaceWords): Added method to replace a set of
341            words by a single word. Useful for synonyms.
342    
343    2007-05-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
344    
345            * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
346    
347    2007-05-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
348    
349            * R/termdocmatrix.R (textvector): Small fix for dealing with empty
350            vectors. Thanks to Ariel Maguyon for his error report.
351            (removeSparseTerms): New function to remove columns from a
352            term-document matrix exceeding a sparse factor.
353    
354    2007-05-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
355    
356            * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
357    
358    2007-05-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
359    
360            * man/sFilter.Rd: Corrected documentation on statement format (use
361            '==' instead of '=').
362    
363    2007-05-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
364    
365            * R/aobjects.R (StructuredTextDocument): Inherits from
366            TextDocument.
367    
368    2007-05-04  Ingo Feinerer  <h0125130@wu-wien.ac.at>
369    
370            * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
371            on sparse matrices as proposed by Martin Maechler.
372    
373    2007-04-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
374    
375            * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
376            \pkg{filehash} version makes them deprecated.
377    
378    2007-04-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
379    
380            * R/termdocmatrix.R (textvector): Stemming is now performed before
381            erasing stopwords.
382            (weightMatrix): Adapted to handle sparse matrices.
383            (TermDocMatrix): Sparse matrix is now efficiently built by
384            direct stepwise insertion of row values into it.
385    
386    2007-04-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
387    
388            * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
389            due to ongoing problems. For our purposes the latter is as useful
390            as the replaced package.
391    
392    2007-04-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>
393    
394            * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.
395    
396            * man/TermDocMatrix.Rd: Remove deprecated \code{language} argument.
397    
398    2007-04-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
399    
400            * R/resolve.R (resolveISOCode): Added ISO 639-1 codes for
401            languages with available stopwords.
402    
403    2007-04-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
404    
405            * inst/doc/tm.Rnw: Minor corrections in the vignette.
406    
407    2007-04-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
408    
409            * DESCRIPTION: Update to version 0.2, since a lot of new features
410            have been integrated.
411    
412            * inst/stopwords: Updated existing stopwords and added stopwords
413            for various other languages.
414    
415    2007-04-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
416    
417            * man/: Updated documentation.
418    
419            * Work/testDb.R: Script to test database stuff.
420    
421            * R/: Fixed various database related bugs. Seems to be rather
422            useable now, i.e., consider as alpha status for now.
423    
424    2007-04-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
425    
426            * R/: Fixed some bugs related to database support.
427    
428    2007-04-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
429    
430            * man/: Added a lot of examples to the manuals.
431    
432    2007-04-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
433    
434            * man/: Updated parts of the documentation.
435    
436            * R/textdoccol.R (asPlain): Added conversion from newsgroup
437            documents to plain text documents.
438    
439    2007-04-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
440    
441            * R/textdoccol.R: Finished experimental database support. Not yet
442            intensively tested.
443    
444            * R/source.R: Now each source has a default reader.
445    
446            * R/reader.R: \code{FunctionGenerator} is now an attribute, not a
447            class anymore.
448    
449            * R/plaintextdoc.R: Custom show method for plain text documents.
450    
451            * R/aobjects.R: Added a class for structured text documents.
452    
453            * R/reader.R: Replaced remaining \code{parser} occurrences with
454            \code{reader}.
455    
456            * R/textdoccol.R (summary): Indent tags.
457    
458            * R/textdoccol.R (removePunctuation): Transform method to remove
459            punctuation marks.
460    
461    2007-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
462    
463            * R/textdoccol.R (sFilter): Simplified sFilter significantly by
464            using prescindMeta().
465    
466    2007-03-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
467    
468            * R/textdoccol.R: Improved database support.
469    
470    2007-03-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
471    
472            * R/termdocmatrix.R (TermDocMatrix): Uses sparse matrices.
473    
474            * R/resolve.R (resolveISOcode): Extracts the language from a ISO
475            language code.
476    
477            * R/textdoccol.R (TextDocCol): Refactored several parser arguments
478            into parserControl argument.
479    
480            * R/aobjects.R (TextDocument): Introduced the "Language" slot.
481    
482    2007-03-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
483    
484            * Work/tmDataSetup.R: The datasets acq and crude can now be
485            created on the fly.
486    
487            * R/stopwords.R: Introduced a function returning the stopwords for
488            a given language (English, German and French at the moment)
489    
490            * R/textdoccol.R (stemDoc): Stemming uses Rstem if available,
491            otherwise falls back to Snowball package.
492    
493    2007-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
494    
495            * man/dissimilarity-methods.Rd: Make clear that any method offered
496            by "dists" from package "cba" can be used.
497    
498    2007-01-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
499    
500            * inst/doc/tm.Rnw: Fixed quotes-appearing-as-boxes-bug according
501            to Kurt's latex suggestion. Removed points and underscores in
502            variable names for consistent naming.
503    
504            * DESCRIPTION: Update to version 0.1-2.
505    
506            * man/TextRepository.Rd: Fixed bug in documentation.
507    
508    2007-01-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
509    
510            * DESCRIPTION: Update to version 0.1-1.
511    
512    2007-01-09  Ingo Feinerer  <h0125130@wu-wien.ac.at>
513    
514            * R/textdoccol.R (stemDoc): Use Rstem::wordStem instead of
515            wordStem.
516    
517    2007-01-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
518    
519            * R/: Changes due to Kurt's review.
520    
521    2006-12-31  Ingo Feinerer  <h0125130@wu-wien.ac.at>
522    
523            * R/: Implemented improvements based upon comments by David
524            Meyer.
525    
526    2006-12-17  Ingo Feinerer  <h0125130@wu-wien.ac.at>
527    
528            * inst/doc/: Rewrote vignette.
529    
530            * man/: Improved documentation.
531    
532    2006-12-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
533    
534            * man/: Updated documentation.
535    
536            * DESCRIPTION: Changed package name to "tm". Updated version to
537            0.1 for first CRAN release.
538    
539            * inst/texts/gmane.comp.lang.r.general.mbox: mbox Gmane R mailing
540            list archive example.
541    
542            * inst/texts/gmane.comp.lang.r.gr.rdf: RSS Gmane R mailing list
543            archive example.
544    
545            * R/preprocess.R (convert_mbox_eml): A simple e-mail converter
546            from (several mails per box) mbox format to (single mail per file)
547            eml format.
548    
549    2006-12-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
550    
551            * data/crude.rda: Rebuilt.
552    
553            * data/acq.rda: Rebuilt.
554    
555            * R/reader.R: Factored out reader and parser methods from
556            textdoccol.R.
557    
558            * R/source.R: Factored out Source methods from aobjects.R and
559            textdoccol.R.
560            (GmaneRSource): Encapsulates Gmane R mailing list archive RSS
561            feeds.
562    
563            * R/textdoccol.R (DirSource): Added support for recursive
564            traversal of directories.
565    
566    2006-12-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
567    
568            * R/textdoccol.R ([[): Loads the document corpus automatically
569            into memory upon access.
570            (tm_transform, tm_filter): Removed several checks whether the
571            document is already loaded ([[ ensures this now).
572            (gmane_r_reader): Reader for RSS feeds as provided by the Gmane R
573            mailing list archive.
574    
575    2006-12-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
576    
577            * R/aobjects.R (TextDocument): Is now a virtual class.
578            (Source): Is now a virtual class.
579    
580    2006-12-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
581    
582            * R/textdoccol.R (c): Support for an arbitrary number of document
583            collections.
584    
585    2006-11-26  Ingo Feinerer  <h0125130@wu-wien.ac.at>
586    
587            * R/textrepo.R: Updated TextRepository (constructor), append_elem,
588            append_meta and remove_meta.
589    
590            * R/textdoccol.R: Removed modify_metadata method.
591    
592            * R/textrepo.R: Removed modify_metadata method.
593    
594            * R/textdoccol.R (remove_meta): Supports removal of document
595            collection metadata and document (= in data frame) metadata.
596    
597    2006-11-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
598    
599            * R/textdoccol.R (append_doc): Bug fix for handling empty metadata.
600    
601            * data/crude.rda: Rebuilt.
602    
603            * data/acq.rda: Rebuilt.
604    
605            * inst/doc/textmin.Rnw: Updated vignette to reflect code changes.
606    
607            * R/textdoccol.R ([): Bug fix for subsetting a document
608            collection's data frame.
609    
610    2006-11-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
611    
612            * R/textdoccol.R: Bug fixes in s_filter. Added full query support
613            to s_filter.
614    
615            * R/textdoccol.R: Local text documents' metadata can now be copied
616            to a document collection's data frame with prescind_meta.
617    
618    2006-11-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
619    
620            * R/: Text documents' slot metadata is now accessible in s_filter.
621    
622            * R/: Rewrote s_filter function (has still some restrictions).
623    
624    2006-11-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>
625    
626            * R/: Various fixes in handling metadata.
627    
628            * R/: Added update mechanism for text document collections.
629    
630    2006-11-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
631    
632            * R/: Merging of document collections now creates a binary tree
633            for reconstructing merged document collections.
634    
635            * R/: Redesign of metadata for document collections.
636    
637    2006-11-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
638    
639            * R/: Messages now use \code{ngettext}.
640    
641    2006-11-03  Ingo Feinerer  <h0125130@wu-wien.ac.at>
642    
643            * R/: Added functions for modifying and removing metadata.
644    
645    2006-11-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
646    
647            * man/: Updated some documentation.
648    
649            * R/: Corrected some connection issues.
650    
651            * inst/doc: Worked on the vignette.
652    
653    2006-10-31  Ingo Feinerer  <h0125130@wu-wien.ac.at>
654    
655            * inst/: Added texts and started vignette.
656    
657            * R/: Final changes based upon David's comments.
658    
659    2006-10-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
660    
661            * NAMESPACE: Corrected exports (generic methods need exportMethods
662            directives!).
663    
664    2006-10-26  Ingo Feinerer  <h0125130@wu-wien.ac.at>
665    
666            * R/: Modified the TextDocCol constructur and various parsers. It
667            is now modular and supports various file formats via plugins (see
668            the new "Source" class).
669    
670    2006-10-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
671    
672            * man/: Revised documentation after previous code changes.
673    
674    2006-10-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
675    
676            * R/: Remaining changes as discussed with David.
677    
678    2006-10-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
679    
680            * R/: Some changes as suggested by David. The rest will follow
681            within the next days.
682    
683    2006-09-26  Ingo Feinerer  <h0125130@wu-wien.ac.at>
684    
685            * man/: Finished documentation.
686    
687    2006-09-25  Ingo Feinerer  <h0125130@wu-wien.ac.at>
688    
689            * man/: Wrote some documentation.
690    
691    2006-09-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
692    
693            * R/: Further syntactic sugar in form of additional assignment and
694            accessor methods.
695    
696    2006-09-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
697    
698            * R/: Syntactic sugar in form of "length", "show" and "summary"
699            operators.
700    
701    2006-08-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
702    
703            * R/: Diverse updates. Mainly on default operators ("[" or "c")
704            and dissimilarities.
705    
706    2006-08-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
707    
708            * R/: Added similarity functions.
709    
710            * data/: Added english stopwords.
711    
712    2006-08-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
713    
714            * data/: Examples compiled for new features
715    
716            * R/: Changes due to new structure.
717    
718            * NAMESPACE: Corrected namespace to reflect new structure.
719    
720            * R/termdocmatrix.R: Adapted for new naming scheme.
721    
722    2006-08-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
723    
724            * R/textdoccol.R: Adapted code for new class structure. Wrote
725            several transform and filter functions operating on text document
726            collections (alias text document databases).
727    
728            * R/aobjects.R: Adapted class structure with inheritance,
729            repositories and additional meta data. Loading files on demand is
730            now possible.
731    
732    2006-07-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
733    
734            * R/: Some cosmetic cleanups.
735    
736            * inst/: Removed vignette on clustering. That and much more is now
737            described in the JSS paper on text mining. Based upon that
738            article an elaborated vignette will be incorporated in the future.
739    
740    2006-07-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
741    
742            * R/: Updated generic S4 methods to comply with signature changes
743            in newer versions of R (> 2.3)
744    
745    2006-03-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
746    
747            * ext/R/importRIS.R: Automatic RIS import is now possible.
748    
749    2006-02-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
750    
751            * R/textdoccol.R: Added RIS HTML input format.
752    
753    2006-01-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
754    
755            * R/textdoccol.R: Removed bug that caused invalid text document
756            collections when handling many input files.
757    
758  2006-01-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>  2006-01-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
759    
760          * R/textdoccol.R: Restructured and extended file import          * R/textdoccol.R: Restructured and extended file import

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