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trunk/R/trunk/ChangeLog revision 17, Sat Nov 5 14:47:12 2005 UTC pkg/ChangeLog revision 1200, Fri Dec 14 15:07:38 2012 UTC
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1    2012-12-14  Ingo Feinerer <feinerer@logic.at>
2    
3            * R/matrix.R (TermDocumentMatrix): Ensure dimnames of type character
4            when generating a simple_triplet_matrix. Reported by Arho Suominen.
5    
6    2012-12-10  Ingo Feinerer <feinerer@logic.at>
7    
8            * man/tm_reduce.Rd: Document right to left folding order. Adapt
9            example as well. Suggested by Mark Rosenstein.
10    
11    2012-12-04  Ingo Feinerer <feinerer@logic.at>
12    
13            * R/filter.R (sFilter): Avoid attach() and simplify.
14    
15    2012-11-02  Ingo Feinerer <feinerer@logic.at>
16    
17            * R/doc.R (.TextDocument): Use casts to ensure data types and to avoid
18            removal of attributes.
19    
20    2012-10-03 Ingo Feinerer  <feinerer@logic.at>
21    
22            * R/weight.R (weightTfIdf, weightSMART): Gracefully handle empty
23            columns and rows (avoids blow-up due to NaN values). Suggested by Jaap
24            Frölich.
25    
26    2012-07-27 Ingo Feinerer  <feinerer@logic.at>
27    
28            * R/transform.R (removeWords): Allow longer stopword lists.
29    
30    2012-01-31  Ingo Feinerer  <feinerer@logic.at>
31    
32            * R/reader.R (readXML): Readers can now set the document language
33            themselves.
34    
35    2012-01-14  Ingo Feinerer  <feinerer@logic.at>
36    
37            * R/source.R (XMLSource, getElem.XMLSource): Simplifications as
38            proposed by Milan Bouchet-Valat.
39    
40    2012-01-11  Ingo Feinerer  <feinerer@logic.at>
41    
42            * R/matrix.R (termFreq): Fix processing of user provided
43            stopwords. Reported by Bettina Grün.
44    
45    2011-12-23  Ingo Feinerer  <feinerer@logic.at>
46    
47            * R/matrix.R (termFreq): Fix invalid handling of
48            control$wordLengths[1]. Reported by Steven C. Bagley.
49    
50    2011-12-17  Ingo Feinerer  <feinerer@logic.at>
51    
52            * DESCRIPTION (Version): Prepare for CRAN Christmas release.
53    
54    2011-12-12  Ingo Feinerer  <feinerer@logic.at>
55    
56            * R/utils.R (map_IETF_Snowball): Map empty input to "porter".
57    
58    2011-12-07  Ingo Feinerer  <feinerer@logic.at>
59    
60            * R/transform.R (removePunctuation): Add option to preserve
61            intra-word dashes.
62    
63    2011-12-06  Ingo Feinerer  <feinerer@logic.at>
64    
65            * R/matrix.R (termFreq): Allow reordering of control option
66            processing.
67    
68    2011-11-17  Ingo Feinerer  <feinerer@logic.at>
69    
70            * R/reader.R (readPDF): Use tools:::pdf_info() instead of external
71            pdfinfo tool.
72    
73            * inst/stopwords/SMART.dat: Add SMART information retrieval system
74            stopwords (which are also used by the MC toolkit).
75    
76            * R/matrix (termFreq): Allow local option \code{bounds$local} to
77            restrict how often a term may appear in each document (generalizes
78            \code{minDocFreq}). Similarly the local option \code{wordLenghts}
79            for word length bounds (generalizes \code{minWordLength}).
80    
81            * R/matrix.R (TermDocumentMatrix.VCorpus): New global option
82            \code{bounds$global} for restricting how often a term is allowed
83            to appear in different documents.
84    
85            * R/matrix.R (TermDocumentMatrix.VCorpus): Distinguish between
86            local options delegated internally to termFreq() and global
87            options which are processed by the term-document matrix
88            constructor itself.
89    
90    2011-11-15  Ingo Feinerer  <feinerer@logic.at>
91    
92            * man/getTokenizers.Rd: Document getTokenizers().
93    
94            * man/tokenizer.Rd: Document MC_tokenizer() and scan_tokenizer().
95    
96    2011-11-04  Ingo Feinerer  <feinerer@logic.at>
97    
98            * man/matrix.Rd: Document as.TermDocumentMatrix.term_frequency.
99    
100            * man/combine.Rd: Document c.term_frequency().
101    
102    2011-10-11  Ingo Feinerer  <feinerer@logic.at>
103    
104            * R/meta.R (`meta<-.Corpus`): Assume that the replacement value
105            can be accessed via '[' and not '[['.
106    
107    2011-08-24  Ingo Feinerer  <feinerer@logic.at>
108    
109            * R/stopwords.R (stopwords): Raise an error if no stopwords are
110            available for requested language. Suggested by Derek M Jones.
111    
112    2011-05-27  Ingo Feinerer  <feinerer@logic.at>
113    
114            * R/weight.R (weightSMART): Implement Cosine and pivoted unique
115            normalization.
116    
117    2011-02-17  Ingo Feinerer  <feinerer@logic.at>
118    
119            * R/transform.R (stemDocument.PlainTextDocument): Use language
120            argument.
121    
122    2011-02-04  Ingo Feinerer  <feinerer@logic.at>
123    
124            * R/source.R: Store strings and connections instead of unevaluated
125            calls.
126    
127    2010-11-26  Ingo Feinerer  <feinerer@logic.at>
128    
129            * R/corpus.R (Corpus): Allow init and exit hooks for readers.
130    
131    2010-10-22  Ingo Feinerer  <feinerer@logic.at>
132    
133            * R/matrix.R (.TermDocumentMatrix): Make Weighting an attribute
134            (instead of a list element).
135    
136    2010-10-16  Ingo Feinerer  <feinerer@logic.at>
137    
138            * R/corpus.R (`[[.VCorpus`, `[[.PCorpus'): Access individual
139            documents by names (fallback to IDs if names are not set).
140    
141    2010-08-25  Ingo Feinerer  <feinerer@logic.at>
142    
143            * R/corpus.R (c.Corpus): When concatenating corpora, the argument
144            \code{recursive} now determines whether existing corpus meta data
145            is used.
146    
147    2010-08-06  Ingo Feinerer  <feinerer@logic.at>
148    
149            * R/transform.R: Removed convert_UTF_8(). Use enc2utf8() instead.
150    
151    2010-06-17  Ingo Feinerer  <feinerer@logic.at>
152    
153            * R/matrix.R (TermDocumentMatrix): If a dictionary is given do not
154            remove terms not occurring in the corpus anymore.
155    
156    2010-06-02  Ingo Feinerer  <feinerer@logic.at>
157    
158            * R/plot.R (Zipf_plot, Heaps_plot): Plotting functions for Zipf's
159            and Heaps' law.
160    
161    2010-05-18  Ingo Feinerer  <feinerer@logic.at>
162    
163            * R/corpus.R (Corpus, PCorpus): Use element names as IDs if
164            provided by a source.
165    
166    2010-04-09  Ingo Feinerer  <feinerer@logic.at>
167    
168            * R/source.R (.Source): Provide document names.
169    
170    2010-04-07  Ingo Feinerer  <feinerer@logic.at>
171    
172            * R/meta.R (`content_or_meta`): Utility function.
173    
174    2010-03-19  Ingo Feinerer  <feinerer@logic.at>
175    
176            * R/reader.R (readReut21578XML, readReut21578XMLasPlain): Extract
177            TOPICS, LEWISSPLIT, CGISPLIT, and OLDID meta tags.
178    
179    2010-03-03  Ingo Feinerer  <feinerer@logic.at>
180    
181            * R/weight.R (weightTfIdf): Added normalization option.
182    
183            * man/tm_tag_score.Rd: Add General Inquirer example for sentiment
184            analysis.
185    
186    2010-02-25  Ingo Feinerer  <feinerer@logic.at>
187    
188            * R/score.R (tm_tag_score): Compute a score from the number of
189            tags matching in a document.
190    
191    2010-02-18  Ingo Feinerer  <feinerer@logic.at>
192    
193            * R/complete.R (stemCompletion): New completion heuristics.
194    
195    2010-02-17  Ingo Feinerer  <feinerer@logic.at>
196    
197            * R/plot.R (plot.TermDocumentMatrix): Memory improvements.
198    
199    2010-02-06  Ingo Feinerer  <feinerer@logic.at>
200    
201            * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
202            setOldClass(c(..., "list")) works.
203    
204    2010-01-22  Ingo Feinerer  <feinerer@logic.at>
205    
206            * R/transform.R (stemDocument.character): In case input is a
207            simple character just delegate to the default Snowball stemmer.
208    
209    2010-01-15  Ingo Feinerer  <feinerer@logic.at>
210    
211            * R/reader.R (readReut21578XML, readRCV1): Extract more meta
212            data.
213    
214    2010-01-12  Ingo Feinerer  <feinerer@logic.at>
215    
216            * R/doc.R (`Content<-`): Be careful with names attribute.
217    
218    2010-01-07  Stefan Theussl  <stefan.theussl@wu.ac.at>
219    
220            * R/source.R (DirSource): Improved implementation especially when
221            handling many (> 1M) files.
222    
223    2009-12-22  Ingo Feinerer  <feinerer@logic.at>
224    
225            * R/source.R (getElem.URISource): Use encoding argument.
226    
227    2009-12-11  Ingo Feinerer  <feinerer@logic.at>
228    
229            * R/doc.R (setOldClass): Register S3 document classes to be
230            recognized by S4 methods.
231    
232    2009-11-25  Ingo Feinerer  <feinerer@logic.at>
233    
234            * R/matrix.R (termFreq): Add option to remove punctuation
235            characters.
236    
237    2009-11-19  Ingo Feinerer  <feinerer@logic.at>
238    
239            * R/matrix.R (c.TermDocumentMatrix): Added combine method for
240            merging multiple term-document matrices.
241    
242    2009-11-17  Ingo Feinerer  <feinerer@logic.at>
243    
244            * R/corpus.R (setOldClass): Register S3 corpus classes to be
245            recognized by S4 methods.
246    
247            * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
248            that CRAN Mac OS X builds do not fail any longer.
249    
250    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
251    
252            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
253            of RWeka:AlphabeticTokenizer() as default.
254    
255    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
256    
257            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
258            caused words at the beginning or the end of a line not to be removed. Do
259            not delete whitespace anymore.
260    
261    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
262    
263            * R/source.R (DirSource): Default to working directory if no path
264            is specified.
265    
266    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
267    
268            * R/source.R (DirSource): Stop on empty directories.
269    
270    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
271    
272            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
273            named documents.
274    
275    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
276    
277            * R/transform.R (removeWords): Improve regular expressions.
278    
279    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
280    
281            * R/meta.R (DublinCore): Allow lower case tags.
282    
283    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
284    
285            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
286            instead of x$children.
287    
288    2009-09-15  Ingo Feinerer  <feinerer@logic.at>
289    
290            * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
291    
292    2009-09-06  Ingo Feinerer  <feinerer@logic.at>
293    
294            * R/: Use S3 instead of S4 class system.
295    
296    2009-08-11  Ingo Feinerer  <feinerer@logic.at>
297    
298            * R/reader.R (readMail): Moved to tm.plugin.mail package.
299    
300    2009-07-04  Ingo Feinerer  <feinerer@logic.at>
301    
302            * R/reader.R (readNewsgroup): Rename to readMail as newsgroup
303            postings are basically e-mails with some extra headers.
304    
305    2009-07-03  Ingo Feinerer  <feinerer@logic.at>
306    
307            * R/transform.R: Move convertMboxEml, removeCitation,
308            removeMultipart, and removeSignature to the tm.plugin.mail package
309            since they are mainly utility functions (for handling e-mails) and
310            not very framework specific.
311    
312    2009-06-28  Ingo Feinerer  <feinerer@logic.at>
313    
314            * man/: Fix documentation.
315    
316    2009-06-26  Ingo Feinerer  <feinerer@logic.at>
317    
318            * R/reader.R (readReut21578XMLasPlain): New reader which returns a
319            plain text document instead of an XML document for texts of the
320            Reuters-21578 dataset.
321    
322            * R/sparse.R: Removed since the slam package is now available on
323            CRAN.
324    
325            * DESCRIPTION (Depends): Add slam package.
326    
327    2009-06-17  Ingo Feinerer  <feinerer@logic.at>
328    
329            * R/transform.R (stemDoc): Fix character(0) handling.
330    
331    2009-06-12  Ingo Feinerer  <feinerer@logic.at>
332    
333            * R/doc.R (show): Pretty print.
334    
335    2009-05-27  Ingo Feinerer  <feinerer@logic.at>
336    
337            * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
338            gracefully.
339    
340    2009-05-13  Ingo Feinerer  <feinerer@logic.at>
341    
342            * R/corpus.R: Make corpus virtual. Implement corpus with standard
343            and permanent storage semantics.
344    
345            * DESCRIPTION: New major release. A *lot* of improvements.
346    
347    2009-05-04   Ingo Feinerer <feinerer@logic.at>
348    
349            * NAMESPACE: Export some simple_triplet_matrix functions.
350    
351    2009-04-28   Ingo Feinerer <feinerer@logic.at>
352    
353            * R/weight.R: Adapt tf-idf to new matrix format.
354    
355    2009-04-27  Ingo Feinerer  <feinerer@logic.at>
356    
357            * R/matrix.R: Create two distinct classes for term-document and
358            document-term matrices.
359    
360    2009-04-26  Ingo Feinerer  <feinerer@logic.at>
361    
362            * R/termdocmatrix.R: No longer use Matrix package. This reduces
363            package start-up time significantly.
364    
365    2009-04-11  Ingo Feinerer  <feinerer@logic.at>
366    
367            * inst/doc/tm.Rnw: Fix code/documentation mismatch.
368    
369    2009-04-04  Ingo Feinerer  <feinerer@logic.at>
370    
371            * R/transform.R (tmReduce): Combine multiple maps into one
372            transformation.
373    
374    2009-04-03  Ingo Feinerer  <feinerer@logic.at>
375    
376            * R/weight.R: Remove weightLogical since it does not return a
377            dgCMatrix.
378    
379            * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
380            or TermDocumentMatrix instead.
381    
382    2009-03-28  Ingo Feinerer  <feinerer@logic.at>
383    
384            * inst/doc/extensions.Rnw: Finished vignette.
385    
386    2009-03-27  Ingo Feinerer  <feinerer@logic.at>
387    
388            * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
389            DocumentTermMatrix representations.
390    
391    2009-03-23  Ingo Feinerer  <feinerer@logic.at>
392    
393            * R/reader.R (readXML): New reader for arbitrary XML files.
394    
395    2009-03-22  Ingo Feinerer  <feinerer@logic.at>
396    
397            * R/source.R (CSVSource): Defunct (use DataframeSource instead).
398            (XMLSource): New XMLSource class for arbitrary XML files.
399            (Source): New slot Vectorized.
400    
401    2009-03-21  Ingo Feinerer  <feinerer@logic.at>
402    
403            * R/reader.R (readTabular): Experimental reader for tabular data
404            structures which can be customized via user-defined mappings.
405    
406            * R/reader.R: Always use UTC time zone.
407    
408            * R/AAA.R (.onLoad): No longer try to start a MPI cluster.
409    
410    2009-03-20  Ingo Feinerer  <feinerer@logic.at>
411    
412            * R/reader.R (readDOC): Options can be passed over to antiword.
413    
414            * R/reader.R (readPDF): Options can be passed over to pdfinfo and
415            pdftotext.
416    
417    2009-03-10  Ingo Feinerer  <feinerer@logic.at>
418    
419            * R/source.R (DirSource): Add pattern and ignore.case arguments
420            which are internally passed over to list.files().
421    
422    2009-03-02  Ingo Feinerer  <feinerer@logic.at>
423    
424            * inst/doc/tm.Rnw: Suppress pointless loading message.
425    
426    2009-01-29  Ingo Feinerer  <feinerer@logic.at>
427    
428            * DESCRIPTION: Speed up package loading (via moving packages not
429            strictly necessary for normal operation to Suggests instead of
430            Depends).
431    
432    2009-01-08  Ingo Feinerer  <feinerer@logic.at>
433    
434            * R/reader.R (readNewsgroup): The date format is now configurable.
435    
436    2008-12-20  Ingo Feinerer  <feinerer@logic.at>
437    
438            * R/preprocess.R (convertMboxEml): Fix off-by-one error.
439    
440    2008-12-16  Ingo Feinerer  <feinerer@logic.at>
441    
442            * R/termdocmatrix.R (TermDocMatrix): Sort row indices.
443    
444    2008-12-06  Ingo Feinerer  <feinerer@logic.at>
445    
446            * R/source.R (DataframeSource): New source class for data frames.
447    
448            * R/source.R: Fixed non-standard call evaluation.
449    
450    2008-11-29  Ingo Feinerer  <feinerer@logic.at>
451    
452            * R/source.R (URISource): New source class for a single document.
453    
454    2008-11-27  Ingo Feinerer  <feinerer@logic.at>
455    
456            * R/source.R: Refactoring.
457    
458    2008-11-25  Ingo Feinerer  <feinerer@logic.at>
459    
460            * R/AAA.R (.onLoad, .Last): Use tryCatch() to handle misconfigured
461            Rmpi installations more gracefully.
462    
463    2008-11-08  Ingo Feinerer  <feinerer@logic.at>
464    
465            * R/source.R (Source): Add Length slot.
466    
467    2008-11-06  Ingo Feinerer  <feinerer@logic.at>
468    
469            * R/AAA.R: Unify duplicated .onLoad function.
470    
471    2008-11-03  Ingo Feinerer  <feinerer@logic.at>
472    
473            * DESCRIPTION (Suggests): Added Rmpi.
474    
475    2008-11-02  Ingo Feinerer  <feinerer@logic.at>
476    
477            * R/source.R (getElem): Fix 'no visible binding' warning.
478    
479            * man/WeightFunction.Rd: Fix signature.
480    
481    2008-08-03  Ingo Feinerer  <feinerer@logic.at>
482    
483            * R/weight.R: Introduce name abbreviations for weighting functions.
484    
485    2008-07-24  Ingo Feinerer  <feinerer@logic.at>
486    
487            * R/AAA.R (.onLoad, .Last): Start and stop MPI cluster.
488    
489            * R/cluster.R: Provide convenience functions for using a MPI
490            cluster.
491    
492            * R/termdocmatrix.R (TermDocMatrix): Use MPI cluster if
493            available.
494    
495            * R/textdoccol.R (tmIndex, tmFilter, tmMap): Use MPI cluster if
496            available.
497    
498    2008-07-17  Ingo Feinerer  <feinerer@logic.at>
499    
500            * R/textdoccol.R (lapply): Removed debug print out.
501    
502    2008-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
503    
504            * R/reader.R (readRCV1): Improved meta data extraction from
505            Reuters Corpus Volume 1 documents.
506    
507    2008-05-25  Ingo Feinerer  <h0125130@wu-wien.ac.at>
508    
509            * R/transform.R: Ensure that all mappings preserve multiline
510            structures.
511    
512    2008-05-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
513    
514            * R/filter.R: Every filter has now an attribute indicating whether
515            it sould be applied to document level (doclevel).
516    
517            * R/textdoccol.R (tmFilter): Set searchFullText as new default
518            filter.
519    
520    2008-04-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
521    
522            * R/transform.R (replacePatterns): Replaced removeWords by
523            replacePatterns. Suggested by Christian Buchta.
524    
525            * R/textdoccol.R (inspect): Improved formatting.
526    
527    2008-04-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
528    
529            * inst/CITATION: Updated JSS article information.
530    
531            * R/textdoccol.R (setAs): Added coerce method from list to
532            corpus.
533    
534            * R/meta.R (meta): Improved meta data handling.
535    
536    2008-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
537    
538            * R/textdoccol.R (materialize, tmMap): Improvements suggested by
539            Christian Buchta.
540    
541            * inst/CITATION: Added template to include JSS article reference.
542    
543    2008-03-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
544    
545            * R/textdoccol.R (tmMap): Introduced lazy mapping.
546    
547            * R/source.R: Added VectorSource.
548    
549    2008-02-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
550    
551            * man/: Language codes should be in ISO 639-1 format.
552    
553            * R/textdoccol.R (asPlain): Preserve local meta data.
554    
555    2008-01-31  Ingo Feinerer  <h0125130@wu-wien.ac.at>
556    
557            * R/textdoccol.R (writeCorpus): Function for writing a corpus
558            containing plain text documents to disk.
559    
560    2008-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
561    
562            * R/termdocmatrix.R (TermDocMatrix): Ensure that dimnames are
563            always set correctly.
564    
565            * R/textdoccol.R: Set load = TRUE as default for load on demand
566            since in most cases this is the wanted behaviour.
567    
568    2008-01-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
569    
570            * R/: Renamed TextDocCol to Corpus, and Corpus to Content.
571    
572            * DESCRIPTION: Updated Version to 0.3 due to core name changes.
573    
574    2008-01-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
575    
576            * R/meta.R (meta): New function for consistent access to meta data
577            of document collections, repositories, and texts.
578    
579    2008-01-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
580    
581            * R/: Better support for encodings.
582    
583    2008-01-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
584    
585            * R/textdoccol.R (TextDocCol): Fixed bug regarding default reader
586            selection when no reader argument is given.
587    
588    2008-01-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
589    
590            * R/source.R (CSVSource): Now uses read.csv instead of scan
591            internally.
592    
593    2008-01-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
594    
595            * R/reader.R (getReaders): Returns available reader functions.
596    
597            * R/termdocmatrix.R (TermDocMatrix): Set new modular constructor
598            as default.
599    
600    2007-12-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
601    
602            * R/stopwords.R (stopwords): Shortened code, removed codetools
603            variable warnings.
604    
605            * man/: Documentation for showMeta, added an example for tmMap.
606    
607            * inst/doc/tm.Rnw: Updated vignette, comments on MS word reader,
608            some minor typos fixed.
609    
610    2007-12-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
611    
612            * R/aobjects.R (showMeta): Added method for pretty printing a
613            text document's meta data.
614    
615    2007-11-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
616    
617            * R/textdoccol.R (TextDocCol): Better handling of empty
618            arguments.
619    
620            * NAMESPACE: Exported readDOC.
621    
622            * man/completeStems.Rd: Added an example.
623    
624    2007-11-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
625    
626            * R/stopwords.R (stopwords): Look up .dat files at every
627            call. Allows users to modify stopword .dat files interactively.
628    
629    2007-11-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
630    
631            * R/termdocmatrix.R (termFreq): Correct processing of empty
632            documents.
633    
634    2007-10-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
635    
636            * man/: Updated documentation.
637    
638    2007-10-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
639    
640            * R/complete.R (completeStems): Completes (heuristically) word
641            stems.
642    
643            * R/termdocmatrix.R (TermDocMatrix2): New modular
644            constructor.
645    
646            * NAMESPACE: Exported termFreq.
647    
648    2007-10-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
649    
650            * R/reader.R (readDOC): Added MS Word reader (using antiword).
651    
652    2007-10-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
653    
654            * R/weight.R: Weighting functions for TermDocMatrix.
655    
656    2007-10-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
657    
658            * R/termdocmatrix.R (dimnames, colnames, rownames): Wrapper
659            functions for accessing dimension, column, and row names.
660    
661            * R/plot.R (plot.TermDocMatrix): Plot correlations between terms.
662    
663    2007-09-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
664    
665            * man/removePunctuation.Rd: Added documentation. Function also exported to NAMESPACE.
666    
667    2007-08-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
668    
669            * R/fungen.R: Use S4 class for function generators instead of S3 attributes.
670    
671    2007-07-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
672    
673            * R/reader.R (readPDF): Removed manual checks for pdftotext and
674            pdfinfo. The system call gives a warning anyway.
675    
676    2007-07-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
677    
678            * R/textdoccol.R (asPlain): Conversion from
679            StructuredTextDocuments to PlainTextDocuments.
680    
681    2007-07-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
682    
683            * R/termdocmatrix.R: Added convenience methods ("[", nrow, ncol)
684            for accessing term-document matrices.
685    
686            * inst/doc/tm.Rnw: readPDF is only called if pdftotext and pdfinfo
687            are installed.
688    
689    2007-07-17  Ingo Feinerer  <h0125130@wu-wien.ac.at>
690    
691            * R/termdocmatrix.R (TermDocMatrix): Improved efficiency. Kudos to
692            Christian Buchta.
693    
694    2007-07-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
695    
696            * inst/doc/tm.Rnw: Update vignette (readPDF, readHTML, preprocessReut21578XML).
697    
698    2007-07-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
699    
700            * R/reader.R (readHTML): Added very simple HTML reader to obtain StructuredTextDocuments.
701    
702            * R/reader.R (readPDF): Added PDF reader.
703    
704    2007-07-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
705    
706            * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
707    
708            * inst/stopwords/english.dat: Added the term "yes" to stopwords.
709    
710            * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
711    
712            * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
713    
714    2007-07-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
715    
716            * R/distmeasure.R (dissimilarity): Replaced dists call from
717            package cba by new dist call from package proxy.
718    
719    2007-07-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
720    
721            * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
722    
723    2007-06-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
724    
725            * R/termdocmatrix.R: require() uses the quietly option to suppress
726            loading messages.
727    
728    2007-06-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
729    
730            * R/dictionary.R: Added dictionary support.
731    
732    2007-06-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
733    
734            * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
735            documents. This simplifies some functions, e.g., asPlain.
736    
737    2007-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
738    
739            * inst/doc/tm.Rnw: Fixed some typos in vignette.
740    
741    2007-06-03  Ingo Feinerer  <h0125130@wu-wien.ac.at>
742    
743            * R/textdoccol.R (replaceWords): Added method to replace a set of
744            words by a single word. Useful for synonyms.
745    
746    2007-05-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
747    
748            * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
749    
750    2007-05-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
751    
752            * R/termdocmatrix.R (textvector): Small fix for dealing with empty
753            vectors. Thanks to Ariel Maguyon for his error report.
754            (removeSparseTerms): New function to remove columns from a
755            term-document matrix exceeding a sparse factor.
756    
757    2007-05-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
758    
759            * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
760    
761    2007-05-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
762    
763            * man/sFilter.Rd: Corrected documentation on statement format (use
764            '==' instead of '=').
765    
766    2007-05-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
767    
768            * R/aobjects.R (StructuredTextDocument): Inherits from
769            TextDocument.
770    
771    2007-05-04  Ingo Feinerer  <h0125130@wu-wien.ac.at>
772    
773            * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
774            on sparse matrices as proposed by Martin Maechler.
775    
776    2007-04-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
777    
778            * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
779            \pkg{filehash} version makes them deprecated.
780    
781    2007-04-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
782    
783            * R/termdocmatrix.R (textvector): Stemming is now performed before
784            erasing stopwords.
785            (weightMatrix): Adapted to handle sparse matrices.
786            (TermDocMatrix): Sparse matrix is now efficiently built by
787            direct stepwise insertion of row values into it.
788    
789    2007-04-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
790    
791            * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
792            due to ongoing problems. For our purposes the latter is as useful
793            as the replaced package.
794    
795    2007-04-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>
796    
797            * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.
798    
799            * man/TermDocMatrix.Rd: Remove deprecated \code{language} argument.
800    
801    2007-04-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
802    
803            * R/resolve.R (resolveISOCode): Added ISO 639-1 codes for
804            languages with available stopwords.
805    
806    2007-04-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
807    
808            * inst/doc/tm.Rnw: Minor corrections in the vignette.
809    
810    2007-04-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
811    
812            * DESCRIPTION: Update to version 0.2, since a lot of new features
813            have been integrated.
814    
815            * inst/stopwords: Updated existing stopwords and added stopwords
816            for various other languages.
817    
818    2007-04-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
819    
820            * man/: Updated documentation.
821    
822            * Work/testDb.R: Script to test database stuff.
823    
824            * R/: Fixed various database related bugs. Seems to be rather
825            useable now, i.e., consider as alpha status for now.
826    
827    2007-04-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
828    
829            * R/: Fixed some bugs related to database support.
830    
831    2007-04-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
832    
833            * man/: Added a lot of examples to the manuals.
834    
835    2007-04-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
836    
837            * man/: Updated parts of the documentation.
838    
839            * R/textdoccol.R (asPlain): Added conversion from newsgroup
840            documents to plain text documents.
841    
842    2007-04-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
843    
844            * R/textdoccol.R: Finished experimental database support. Not yet
845            intensively tested.
846    
847            * R/source.R: Now each source has a default reader.
848    
849            * R/reader.R: \code{FunctionGenerator} is now an attribute, not a
850            class anymore.
851    
852            * R/plaintextdoc.R: Custom show method for plain text documents.
853    
854            * R/aobjects.R: Added a class for structured text documents.
855    
856            * R/reader.R: Replaced remaining \code{parser} occurrences with
857            \code{reader}.
858    
859            * R/textdoccol.R (summary): Indent tags.
860    
861            * R/textdoccol.R (removePunctuation): Transform method to remove
862            punctuation marks.
863    
864    2007-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
865    
866            * R/textdoccol.R (sFilter): Simplified sFilter significantly by
867            using prescindMeta().
868    
869    2007-03-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
870    
871            * R/textdoccol.R: Improved database support.
872    
873    2007-03-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
874    
875            * R/termdocmatrix.R (TermDocMatrix): Uses sparse matrices.
876    
877            * R/resolve.R (resolveISOcode): Extracts the language from a ISO
878            language code.
879    
880            * R/textdoccol.R (TextDocCol): Refactored several parser arguments
881            into parserControl argument.
882    
883            * R/aobjects.R (TextDocument): Introduced the "Language" slot.
884    
885    2007-03-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
886    
887            * Work/tmDataSetup.R: The datasets acq and crude can now be
888            created on the fly.
889    
890            * R/stopwords.R: Introduced a function returning the stopwords for
891            a given language (English, German and French at the moment)
892    
893            * R/textdoccol.R (stemDoc): Stemming uses Rstem if available,
894            otherwise falls back to Snowball package.
895    
896    2007-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
897    
898            * man/dissimilarity-methods.Rd: Make clear that any method offered
899            by "dists" from package "cba" can be used.
900    
901    2007-01-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
902    
903            * inst/doc/tm.Rnw: Fixed quotes-appearing-as-boxes-bug according
904            to Kurt's latex suggestion. Removed points and underscores in
905            variable names for consistent naming.
906    
907            * DESCRIPTION: Update to version 0.1-2.
908    
909            * man/TextRepository.Rd: Fixed bug in documentation.
910    
911    2007-01-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
912    
913            * DESCRIPTION: Update to version 0.1-1.
914    
915    2007-01-09  Ingo Feinerer  <h0125130@wu-wien.ac.at>
916    
917            * R/textdoccol.R (stemDoc): Use Rstem::wordStem instead of
918            wordStem.
919    
920    2007-01-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
921    
922            * R/: Changes due to Kurt's review.
923    
924    2006-12-31  Ingo Feinerer  <h0125130@wu-wien.ac.at>
925    
926            * R/: Implemented improvements based upon comments by David
927            Meyer.
928    
929    2006-12-17  Ingo Feinerer  <h0125130@wu-wien.ac.at>
930    
931            * inst/doc/: Rewrote vignette.
932    
933            * man/: Improved documentation.
934    
935    2006-12-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
936    
937            * man/: Updated documentation.
938    
939            * DESCRIPTION: Changed package name to "tm". Updated version to
940            0.1 for first CRAN release.
941    
942            * inst/texts/gmane.comp.lang.r.general.mbox: mbox Gmane R mailing
943            list archive example.
944    
945            * inst/texts/gmane.comp.lang.r.gr.rdf: RSS Gmane R mailing list
946            archive example.
947    
948            * R/preprocess.R (convert_mbox_eml): A simple e-mail converter
949            from (several mails per box) mbox format to (single mail per file)
950            eml format.
951    
952    2006-12-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
953    
954            * data/crude.rda: Rebuilt.
955    
956            * data/acq.rda: Rebuilt.
957    
958            * R/reader.R: Factored out reader and parser methods from
959            textdoccol.R.
960    
961            * R/source.R: Factored out Source methods from aobjects.R and
962            textdoccol.R.
963            (GmaneRSource): Encapsulates Gmane R mailing list archive RSS
964            feeds.
965    
966            * R/textdoccol.R (DirSource): Added support for recursive
967            traversal of directories.
968    
969    2006-12-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
970    
971            * R/textdoccol.R ([[): Loads the document corpus automatically
972            into memory upon access.
973            (tm_transform, tm_filter): Removed several checks whether the
974            document is already loaded ([[ ensures this now).
975            (gmane_r_reader): Reader for RSS feeds as provided by the Gmane R
976            mailing list archive.
977    
978    2006-12-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
979    
980            * R/aobjects.R (TextDocument): Is now a virtual class.
981            (Source): Is now a virtual class.
982    
983    2006-12-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
984    
985            * R/textdoccol.R (c): Support for an arbitrary number of document
986            collections.
987    
988    2006-11-26  Ingo Feinerer  <h0125130@wu-wien.ac.at>
989    
990            * R/textrepo.R: Updated TextRepository (constructor), append_elem,
991            append_meta and remove_meta.
992    
993            * R/textdoccol.R: Removed modify_metadata method.
994    
995            * R/textrepo.R: Removed modify_metadata method.
996    
997            * R/textdoccol.R (remove_meta): Supports removal of document
998            collection metadata and document (= in data frame) metadata.
999    
1000    2006-11-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1001    
1002            * R/textdoccol.R (append_doc): Bug fix for handling empty metadata.
1003    
1004            * data/crude.rda: Rebuilt.
1005    
1006            * data/acq.rda: Rebuilt.
1007    
1008            * inst/doc/textmin.Rnw: Updated vignette to reflect code changes.
1009    
1010            * R/textdoccol.R ([): Bug fix for subsetting a document
1011            collection's data frame.
1012    
1013    2006-11-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1014    
1015            * R/textdoccol.R: Bug fixes in s_filter. Added full query support
1016            to s_filter.
1017    
1018            * R/textdoccol.R: Local text documents' metadata can now be copied
1019            to a document collection's data frame with prescind_meta.
1020    
1021    2006-11-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1022    
1023            * R/: Text documents' slot metadata is now accessible in s_filter.
1024    
1025            * R/: Rewrote s_filter function (has still some restrictions).
1026    
1027    2006-11-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1028    
1029            * R/: Various fixes in handling metadata.
1030    
1031            * R/: Added update mechanism for text document collections.
1032    
1033    2006-11-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1034    
1035            * R/: Merging of document collections now creates a binary tree
1036            for reconstructing merged document collections.
1037    
1038            * R/: Redesign of metadata for document collections.
1039    
1040    2006-11-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1041    
1042            * R/: Messages now use \code{ngettext}.
1043    
1044    2006-11-03  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1045    
1046            * R/: Added functions for modifying and removing metadata.
1047    
1048    2006-11-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1049    
1050            * man/: Updated some documentation.
1051    
1052            * R/: Corrected some connection issues.
1053    
1054            * inst/doc: Worked on the vignette.
1055    
1056    2006-10-31  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1057    
1058            * inst/: Added texts and started vignette.
1059    
1060            * R/: Final changes based upon David's comments.
1061    
1062    2006-10-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1063    
1064            * NAMESPACE: Corrected exports (generic methods need exportMethods
1065            directives!).
1066    
1067    2006-10-26  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1068    
1069            * R/: Modified the TextDocCol constructur and various parsers. It
1070            is now modular and supports various file formats via plugins (see
1071            the new "Source" class).
1072    
1073    2006-10-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1074    
1075            * man/: Revised documentation after previous code changes.
1076    
1077    2006-10-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1078    
1079            * R/: Remaining changes as discussed with David.
1080    
1081    2006-10-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1082    
1083            * R/: Some changes as suggested by David. The rest will follow
1084            within the next days.
1085    
1086    2006-09-26  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1087    
1088            * man/: Finished documentation.
1089    
1090    2006-09-25  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1091    
1092            * man/: Wrote some documentation.
1093    
1094    2006-09-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1095    
1096            * R/: Further syntactic sugar in form of additional assignment and
1097            accessor methods.
1098    
1099    2006-09-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1100    
1101            * R/: Syntactic sugar in form of "length", "show" and "summary"
1102            operators.
1103    
1104    2006-08-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1105    
1106            * R/: Diverse updates. Mainly on default operators ("[" or "c")
1107            and dissimilarities.
1108    
1109    2006-08-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1110    
1111            * R/: Added similarity functions.
1112    
1113            * data/: Added english stopwords.
1114    
1115    2006-08-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1116    
1117            * data/: Examples compiled for new features
1118    
1119            * R/: Changes due to new structure.
1120    
1121            * NAMESPACE: Corrected namespace to reflect new structure.
1122    
1123            * R/termdocmatrix.R: Adapted for new naming scheme.
1124    
1125    2006-08-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1126    
1127            * R/textdoccol.R: Adapted code for new class structure. Wrote
1128            several transform and filter functions operating on text document
1129            collections (alias text document databases).
1130    
1131            * R/aobjects.R: Adapted class structure with inheritance,
1132            repositories and additional meta data. Loading files on demand is
1133            now possible.
1134    
1135    2006-07-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1136    
1137            * R/: Some cosmetic cleanups.
1138    
1139            * inst/: Removed vignette on clustering. That and much more is now
1140            described in the JSS paper on text mining. Based upon that
1141            article an elaborated vignette will be incorporated in the future.
1142    
1143    2006-07-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1144    
1145            * R/: Updated generic S4 methods to comply with signature changes
1146            in newer versions of R (> 2.3)
1147    
1148    2006-03-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1149    
1150            * ext/R/importRIS.R: Automatic RIS import is now possible.
1151    
1152    2006-02-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1153    
1154            * R/textdoccol.R: Added RIS HTML input format.
1155    
1156    2006-01-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1157    
1158            * R/textdoccol.R: Removed bug that caused invalid text document
1159            collections when handling many input files.
1160    
1161    2006-01-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1162    
1163            * R/textdoccol.R: Restructured and extended file import
1164            mechanism.
1165    
1166            * inst/doc/clustering.Rnw: Adapted vignette for use with
1167            ReutNews.rda
1168    
1169            * man/ReutNews.Rd: Documentation for ReutNews.rda
1170    
1171            * data/ReutNews.rda: A tiny Reuters21578 example data set.
1172    
1173    2005-12-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1174    
1175            * inst/doc/clustering.Rnw: Wrote a small vignette to present the
1176            clustering facilities of this package.
1177    
1178    2005-12-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1179    
1180            * R/aobjects.R: Changed package document structure to avoid class
1181            dependency problems.
1182    
1183    2005-12-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1184    
1185            *  Wrote a script for the ModLewis Split for the Reuters-21578 XML
1186            data set.
1187    
1188            *  Finished documentation and reordered directory structure. Now "R
1189            CMD check textmin" works without errors.
1190    
1191    2005-12-04  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1192    
1193            * src/: Various splits can now be easily created for the
1194            Reuters21578 data set.
1195    
1196    2005-12-03  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1197    
1198            *  Updated documentation
1199    
1200    2005-11-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1201    
1202            *  Wrote R documentation for some classes and methods.
1203    
1204    2005-11-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1205    
1206            * R/textdoccol.R: Constructor of textdoccol allows import of CSV
1207            files. See the questionnaire data/Umfrage.csv for such an example.
1208            We are now able to import files in Reuters-21578 XML format.
1209    
1210            *  Changed class interfaces in various files. Weighting of the text
1211            matrix is now possible.
1212    
1213    2005-11-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1214    
1215            * R/textdoccol.R: One can build term-document matrices if
1216            nessecary (with buildTDM(...)) and fill the field tdm from a text
1217            document collection with it.
1218    
1219            * R/textmatrix.R: Wrote S4 class for term-document matrices.
1220    
1221    2005-11-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1222    
1223            * R/textdoccol.R: We now can read in a whole XML file with several
1224            news items.
1225    
1226  2005-11-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>  2005-11-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
1227    
1228          * R/textdoccol.R: Set up an S4 class for a collection of text          * R/textdoccol.R: Set up an S4 class for a collection of text

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