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revision 911, Sun Mar 22 17:55:16 2009 UTC revision 1199, Mon Dec 10 14:37:54 2012 UTC
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1    2012-12-10  Ingo Feinerer <feinerer@logic.at>
2    
3            * man/tm_reduce.Rd: Document right to left folding order. Adapt
4            example as well. Suggested by Mark Rosenstein.
5    
6    2012-12-04  Ingo Feinerer <feinerer@logic.at>
7    
8            * R/filter.R (sFilter): Avoid attach() and simplify.
9    
10    2012-11-02  Ingo Feinerer <feinerer@logic.at>
11    
12            * R/doc.R (.TextDocument): Use casts to ensure data types and to avoid
13            removal of attributes.
14    
15    2012-10-03 Ingo Feinerer  <feinerer@logic.at>
16    
17            * R/weight.R (weightTfIdf, weightSMART): Gracefully handle empty
18            columns and rows (avoids blow-up due to NaN values). Suggested by Jaap
19            Frölich.
20    
21    2012-07-27 Ingo Feinerer  <feinerer@logic.at>
22    
23            * R/transform.R (removeWords): Allow longer stopword lists.
24    
25    2012-01-31  Ingo Feinerer  <feinerer@logic.at>
26    
27            * R/reader.R (readXML): Readers can now set the document language
28            themselves.
29    
30    2012-01-14  Ingo Feinerer  <feinerer@logic.at>
31    
32            * R/source.R (XMLSource, getElem.XMLSource): Simplifications as
33            proposed by Milan Bouchet-Valat.
34    
35    2012-01-11  Ingo Feinerer  <feinerer@logic.at>
36    
37            * R/matrix.R (termFreq): Fix processing of user provided
38            stopwords. Reported by Bettina Grün.
39    
40    2011-12-23  Ingo Feinerer  <feinerer@logic.at>
41    
42            * R/matrix.R (termFreq): Fix invalid handling of
43            control$wordLengths[1]. Reported by Steven C. Bagley.
44    
45    2011-12-17  Ingo Feinerer  <feinerer@logic.at>
46    
47            * DESCRIPTION (Version): Prepare for CRAN Christmas release.
48    
49    2011-12-12  Ingo Feinerer  <feinerer@logic.at>
50    
51            * R/utils.R (map_IETF_Snowball): Map empty input to "porter".
52    
53    2011-12-07  Ingo Feinerer  <feinerer@logic.at>
54    
55            * R/transform.R (removePunctuation): Add option to preserve
56            intra-word dashes.
57    
58    2011-12-06  Ingo Feinerer  <feinerer@logic.at>
59    
60            * R/matrix.R (termFreq): Allow reordering of control option
61            processing.
62    
63    2011-11-17  Ingo Feinerer  <feinerer@logic.at>
64    
65            * R/reader.R (readPDF): Use tools:::pdf_info() instead of external
66            pdfinfo tool.
67    
68            * inst/stopwords/SMART.dat: Add SMART information retrieval system
69            stopwords (which are also used by the MC toolkit).
70    
71            * R/matrix (termFreq): Allow local option \code{bounds$local} to
72            restrict how often a term may appear in each document (generalizes
73            \code{minDocFreq}). Similarly the local option \code{wordLenghts}
74            for word length bounds (generalizes \code{minWordLength}).
75    
76            * R/matrix.R (TermDocumentMatrix.VCorpus): New global option
77            \code{bounds$global} for restricting how often a term is allowed
78            to appear in different documents.
79    
80            * R/matrix.R (TermDocumentMatrix.VCorpus): Distinguish between
81            local options delegated internally to termFreq() and global
82            options which are processed by the term-document matrix
83            constructor itself.
84    
85    2011-11-15  Ingo Feinerer  <feinerer@logic.at>
86    
87            * man/getTokenizers.Rd: Document getTokenizers().
88    
89            * man/tokenizer.Rd: Document MC_tokenizer() and scan_tokenizer().
90    
91    2011-11-04  Ingo Feinerer  <feinerer@logic.at>
92    
93            * man/matrix.Rd: Document as.TermDocumentMatrix.term_frequency.
94    
95            * man/combine.Rd: Document c.term_frequency().
96    
97    2011-10-11  Ingo Feinerer  <feinerer@logic.at>
98    
99            * R/meta.R (`meta<-.Corpus`): Assume that the replacement value
100            can be accessed via '[' and not '[['.
101    
102    2011-08-24  Ingo Feinerer  <feinerer@logic.at>
103    
104            * R/stopwords.R (stopwords): Raise an error if no stopwords are
105            available for requested language. Suggested by Derek M Jones.
106    
107    2011-05-27  Ingo Feinerer  <feinerer@logic.at>
108    
109            * R/weight.R (weightSMART): Implement Cosine and pivoted unique
110            normalization.
111    
112    2011-02-17  Ingo Feinerer  <feinerer@logic.at>
113    
114            * R/transform.R (stemDocument.PlainTextDocument): Use language
115            argument.
116    
117    2011-02-04  Ingo Feinerer  <feinerer@logic.at>
118    
119            * R/source.R: Store strings and connections instead of unevaluated
120            calls.
121    
122    2010-11-26  Ingo Feinerer  <feinerer@logic.at>
123    
124            * R/corpus.R (Corpus): Allow init and exit hooks for readers.
125    
126    2010-10-22  Ingo Feinerer  <feinerer@logic.at>
127    
128            * R/matrix.R (.TermDocumentMatrix): Make Weighting an attribute
129            (instead of a list element).
130    
131    2010-10-16  Ingo Feinerer  <feinerer@logic.at>
132    
133            * R/corpus.R (`[[.VCorpus`, `[[.PCorpus'): Access individual
134            documents by names (fallback to IDs if names are not set).
135    
136    2010-08-25  Ingo Feinerer  <feinerer@logic.at>
137    
138            * R/corpus.R (c.Corpus): When concatenating corpora, the argument
139            \code{recursive} now determines whether existing corpus meta data
140            is used.
141    
142    2010-08-06  Ingo Feinerer  <feinerer@logic.at>
143    
144            * R/transform.R: Removed convert_UTF_8(). Use enc2utf8() instead.
145    
146    2010-06-17  Ingo Feinerer  <feinerer@logic.at>
147    
148            * R/matrix.R (TermDocumentMatrix): If a dictionary is given do not
149            remove terms not occurring in the corpus anymore.
150    
151    2010-06-02  Ingo Feinerer  <feinerer@logic.at>
152    
153            * R/plot.R (Zipf_plot, Heaps_plot): Plotting functions for Zipf's
154            and Heaps' law.
155    
156    2010-05-18  Ingo Feinerer  <feinerer@logic.at>
157    
158            * R/corpus.R (Corpus, PCorpus): Use element names as IDs if
159            provided by a source.
160    
161    2010-04-09  Ingo Feinerer  <feinerer@logic.at>
162    
163            * R/source.R (.Source): Provide document names.
164    
165    2010-04-07  Ingo Feinerer  <feinerer@logic.at>
166    
167            * R/meta.R (`content_or_meta`): Utility function.
168    
169    2010-03-19  Ingo Feinerer  <feinerer@logic.at>
170    
171            * R/reader.R (readReut21578XML, readReut21578XMLasPlain): Extract
172            TOPICS, LEWISSPLIT, CGISPLIT, and OLDID meta tags.
173    
174    2010-03-03  Ingo Feinerer  <feinerer@logic.at>
175    
176            * R/weight.R (weightTfIdf): Added normalization option.
177    
178            * man/tm_tag_score.Rd: Add General Inquirer example for sentiment
179            analysis.
180    
181    2010-02-25  Ingo Feinerer  <feinerer@logic.at>
182    
183            * R/score.R (tm_tag_score): Compute a score from the number of
184            tags matching in a document.
185    
186    2010-02-18  Ingo Feinerer  <feinerer@logic.at>
187    
188            * R/complete.R (stemCompletion): New completion heuristics.
189    
190    2010-02-17  Ingo Feinerer  <feinerer@logic.at>
191    
192            * R/plot.R (plot.TermDocumentMatrix): Memory improvements.
193    
194    2010-02-06  Ingo Feinerer  <feinerer@logic.at>
195    
196            * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
197            setOldClass(c(..., "list")) works.
198    
199    2010-01-22  Ingo Feinerer  <feinerer@logic.at>
200    
201            * R/transform.R (stemDocument.character): In case input is a
202            simple character just delegate to the default Snowball stemmer.
203    
204    2010-01-15  Ingo Feinerer  <feinerer@logic.at>
205    
206            * R/reader.R (readReut21578XML, readRCV1): Extract more meta
207            data.
208    
209    2010-01-12  Ingo Feinerer  <feinerer@logic.at>
210    
211            * R/doc.R (`Content<-`): Be careful with names attribute.
212    
213    2010-01-07  Stefan Theussl  <stefan.theussl@wu.ac.at>
214    
215            * R/source.R (DirSource): Improved implementation especially when
216            handling many (> 1M) files.
217    
218    2009-12-22  Ingo Feinerer  <feinerer@logic.at>
219    
220            * R/source.R (getElem.URISource): Use encoding argument.
221    
222    2009-12-11  Ingo Feinerer  <feinerer@logic.at>
223    
224            * R/doc.R (setOldClass): Register S3 document classes to be
225            recognized by S4 methods.
226    
227    2009-11-25  Ingo Feinerer  <feinerer@logic.at>
228    
229            * R/matrix.R (termFreq): Add option to remove punctuation
230            characters.
231    
232    2009-11-19  Ingo Feinerer  <feinerer@logic.at>
233    
234            * R/matrix.R (c.TermDocumentMatrix): Added combine method for
235            merging multiple term-document matrices.
236    
237    2009-11-17  Ingo Feinerer  <feinerer@logic.at>
238    
239            * R/corpus.R (setOldClass): Register S3 corpus classes to be
240            recognized by S4 methods.
241    
242            * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
243            that CRAN Mac OS X builds do not fail any longer.
244    
245    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
246    
247            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
248            of RWeka:AlphabeticTokenizer() as default.
249    
250    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
251    
252            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
253            caused words at the beginning or the end of a line not to be removed. Do
254            not delete whitespace anymore.
255    
256    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
257    
258            * R/source.R (DirSource): Default to working directory if no path
259            is specified.
260    
261    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
262    
263            * R/source.R (DirSource): Stop on empty directories.
264    
265    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
266    
267            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
268            named documents.
269    
270    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
271    
272            * R/transform.R (removeWords): Improve regular expressions.
273    
274    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
275    
276            * R/meta.R (DublinCore): Allow lower case tags.
277    
278    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
279    
280            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
281            instead of x$children.
282    
283    2009-09-15  Ingo Feinerer  <feinerer@logic.at>
284    
285            * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
286    
287    2009-09-06  Ingo Feinerer  <feinerer@logic.at>
288    
289            * R/: Use S3 instead of S4 class system.
290    
291    2009-08-11  Ingo Feinerer  <feinerer@logic.at>
292    
293            * R/reader.R (readMail): Moved to tm.plugin.mail package.
294    
295    2009-07-04  Ingo Feinerer  <feinerer@logic.at>
296    
297            * R/reader.R (readNewsgroup): Rename to readMail as newsgroup
298            postings are basically e-mails with some extra headers.
299    
300    2009-07-03  Ingo Feinerer  <feinerer@logic.at>
301    
302            * R/transform.R: Move convertMboxEml, removeCitation,
303            removeMultipart, and removeSignature to the tm.plugin.mail package
304            since they are mainly utility functions (for handling e-mails) and
305            not very framework specific.
306    
307    2009-06-28  Ingo Feinerer  <feinerer@logic.at>
308    
309            * man/: Fix documentation.
310    
311    2009-06-26  Ingo Feinerer  <feinerer@logic.at>
312    
313            * R/reader.R (readReut21578XMLasPlain): New reader which returns a
314            plain text document instead of an XML document for texts of the
315            Reuters-21578 dataset.
316    
317            * R/sparse.R: Removed since the slam package is now available on
318            CRAN.
319    
320            * DESCRIPTION (Depends): Add slam package.
321    
322    2009-06-17  Ingo Feinerer  <feinerer@logic.at>
323    
324            * R/transform.R (stemDoc): Fix character(0) handling.
325    
326    2009-06-12  Ingo Feinerer  <feinerer@logic.at>
327    
328            * R/doc.R (show): Pretty print.
329    
330    2009-05-27  Ingo Feinerer  <feinerer@logic.at>
331    
332            * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
333            gracefully.
334    
335    2009-05-13  Ingo Feinerer  <feinerer@logic.at>
336    
337            * R/corpus.R: Make corpus virtual. Implement corpus with standard
338            and permanent storage semantics.
339    
340            * DESCRIPTION: New major release. A *lot* of improvements.
341    
342    2009-05-04   Ingo Feinerer <feinerer@logic.at>
343    
344            * NAMESPACE: Export some simple_triplet_matrix functions.
345    
346    2009-04-28   Ingo Feinerer <feinerer@logic.at>
347    
348            * R/weight.R: Adapt tf-idf to new matrix format.
349    
350    2009-04-27  Ingo Feinerer  <feinerer@logic.at>
351    
352            * R/matrix.R: Create two distinct classes for term-document and
353            document-term matrices.
354    
355    2009-04-26  Ingo Feinerer  <feinerer@logic.at>
356    
357            * R/termdocmatrix.R: No longer use Matrix package. This reduces
358            package start-up time significantly.
359    
360    2009-04-11  Ingo Feinerer  <feinerer@logic.at>
361    
362            * inst/doc/tm.Rnw: Fix code/documentation mismatch.
363    
364    2009-04-04  Ingo Feinerer  <feinerer@logic.at>
365    
366            * R/transform.R (tmReduce): Combine multiple maps into one
367            transformation.
368    
369    2009-04-03  Ingo Feinerer  <feinerer@logic.at>
370    
371            * R/weight.R: Remove weightLogical since it does not return a
372            dgCMatrix.
373    
374            * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
375            or TermDocumentMatrix instead.
376    
377    2009-03-28  Ingo Feinerer  <feinerer@logic.at>
378    
379            * inst/doc/extensions.Rnw: Finished vignette.
380    
381    2009-03-27  Ingo Feinerer  <feinerer@logic.at>
382    
383            * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
384            DocumentTermMatrix representations.
385    
386    2009-03-23  Ingo Feinerer  <feinerer@logic.at>
387    
388            * R/reader.R (readXML): New reader for arbitrary XML files.
389    
390  2009-03-22  Ingo Feinerer  <feinerer@logic.at>  2009-03-22  Ingo Feinerer  <feinerer@logic.at>
391    
392          * R/source.R (CSVSource): Defunct (use DataframeSource instead).          * R/source.R (CSVSource): Defunct (use DataframeSource instead).
# Line 6  Line 395 
395    
396  2009-03-21  Ingo Feinerer  <feinerer@logic.at>  2009-03-21  Ingo Feinerer  <feinerer@logic.at>
397    
398          * R/reader.R (readCustom): Experimental reader which can be          * R/reader.R (readTabular): Experimental reader for tabular data
399          customized via user-defined mappings.          structures which can be customized via user-defined mappings.
400    
401          * R/reader.R: Always use UTC time zone.          * R/reader.R: Always use UTC time zone.
402    

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