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revision 1007, Tue Sep 15 18:02:44 2009 UTC revision 1167, Fri Dec 23 09:44:33 2011 UTC
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1    2011-12-23  Ingo Feinerer  <feinerer@logic.at>
2    
3            * R/matrix.R (termFreq): Fix invalid handling of
4            control$wordLengths[1]. Reported by Steven C. Bagley.
5    
6    2011-12-17  Ingo Feinerer  <feinerer@logic.at>
7    
8            * DESCRIPTION (Version): Prepare for CRAN Christmas release.
9    
10    2011-12-12  Ingo Feinerer  <feinerer@logic.at>
11    
12            * R/utils.R (map_IETF_Snowball): Map empty input to "porter".
13    
14    2011-12-07  Ingo Feinerer  <feinerer@logic.at>
15    
16            * R/transform.R (removePunctuation): Add option to preserve
17            intra-word dashes.
18    
19    2011-12-06  Ingo Feinerer  <feinerer@logic.at>
20    
21            * R/matrix.R (termFreq): Allow reordering of control option
22            processing.
23    
24    2011-11-17  Ingo Feinerer  <feinerer@logic.at>
25    
26            * R/reader.R (readPDF): Use tools:::pdf_info() instead of external
27            pdfinfo tool.
28    
29            * inst/stopwords/SMART.dat: Add SMART information retrieval system
30            stopwords (which are also used by the MC toolkit).
31    
32            * R/matrix (termFreq): Allow local option \code{bounds$local} to
33            restrict how often a term may appear in each document (generalizes
34            \code{minDocFreq}). Similarly the local option \code{wordLenghts}
35            for word length bounds (generalizes \code{minWordLength}).
36    
37            * R/matrix.R (TermDocumentMatrix.VCorpus): New global option
38            \code{bounds$global} for restricting how often a term is allowed
39            to appear in different documents.
40    
41            * R/matrix.R (TermDocumentMatrix.VCorpus): Distinguish between
42            local options delegated internally to termFreq() and global
43            options which are processed by the term-document matrix
44            constructor itself.
45    
46    2011-11-15  Ingo Feinerer  <feinerer@logic.at>
47    
48            * man/getTokenizers.Rd: Document getTokenizers().
49    
50            * man/tokenizer.Rd: Document MC_tokenizer() and scan_tokenizer().
51    
52    2011-11-04  Ingo Feinerer  <feinerer@logic.at>
53    
54            * man/matrix.Rd: Document as.TermDocumentMatrix.term_frequency.
55    
56            * man/combine.Rd: Document c.term_frequency().
57    
58    2011-10-11  Ingo Feinerer  <feinerer@logic.at>
59    
60            * R/meta.R (`meta<-.Corpus`): Assume that the replacement value
61            can be accessed via '[' and not '[['.
62    
63    2011-08-24  Ingo Feinerer  <feinerer@logic.at>
64    
65            * R/stopwords.R (stopwords): Raise an error if no stopwords are
66            available for requested language. Suggested by Derek M Jones.
67    
68    2011-05-27  Ingo Feinerer  <feinerer@logic.at>
69    
70            * R/weight.R (weightSMART): Implement Cosine and pivoted unique
71            normalization.
72    
73    2011-02-17  Ingo Feinerer  <feinerer@logic.at>
74    
75            * R/transform.R (stemDocument.PlainTextDocument): Use language
76            argument.
77    
78    2011-02-04  Ingo Feinerer  <feinerer@logic.at>
79    
80            * R/source.R: Store strings and connections instead of unevaluated
81            calls.
82    
83    2010-11-26  Ingo Feinerer  <feinerer@logic.at>
84    
85            * R/corpus.R (Corpus): Allow init and exit hooks for readers.
86    
87    2010-10-22  Ingo Feinerer  <feinerer@logic.at>
88    
89            * R/matrix.R (.TermDocumentMatrix): Make Weighting an attribute
90            (instead of a list element).
91    
92    2010-10-16  Ingo Feinerer  <feinerer@logic.at>
93    
94            * R/corpus.R (`[[.VCorpus`, `[[.PCorpus'): Access individual
95            documents by names (fallback to IDs if names are not set).
96    
97    2010-08-25  Ingo Feinerer  <feinerer@logic.at>
98    
99            * R/corpus.R (c.Corpus): When concatenating corpora, the argument
100            \code{recursive} now determines whether existing corpus meta data
101            is used.
102    
103    2010-08-06  Ingo Feinerer  <feinerer@logic.at>
104    
105            * R/transform.R: Removed convert_UTF_8(). Use enc2utf8() instead.
106    
107    2010-06-17  Ingo Feinerer  <feinerer@logic.at>
108    
109            * R/matrix.R (TermDocumentMatrix): If a dictionary is given do not
110            remove terms not occurring in the corpus anymore.
111    
112    2010-06-02  Ingo Feinerer  <feinerer@logic.at>
113    
114            * R/plot.R (Zipf_plot, Heaps_plot): Plotting functions for Zipf's
115            and Heaps' law.
116    
117    2010-05-18  Ingo Feinerer  <feinerer@logic.at>
118    
119            * R/corpus.R (Corpus, PCorpus): Use element names as IDs if
120            provided by a source.
121    
122    2010-04-09  Ingo Feinerer  <feinerer@logic.at>
123    
124            * R/source.R (.Source): Provide document names.
125    
126    2010-04-07  Ingo Feinerer  <feinerer@logic.at>
127    
128            * R/meta.R (`content_or_meta`): Utility function.
129    
130    2010-03-19  Ingo Feinerer  <feinerer@logic.at>
131    
132            * R/reader.R (readReut21578XML, readReut21578XMLasPlain): Extract
133            TOPICS, LEWISSPLIT, CGISPLIT, and OLDID meta tags.
134    
135    2010-03-03  Ingo Feinerer  <feinerer@logic.at>
136    
137            * R/weight.R (weightTfIdf): Added normalization option.
138    
139            * man/tm_tag_score.Rd: Add General Inquirer example for sentiment
140            analysis.
141    
142    2010-02-25  Ingo Feinerer  <feinerer@logic.at>
143    
144            * R/score.R (tm_tag_score): Compute a score from the number of
145            tags matching in a document.
146    
147    2010-02-18  Ingo Feinerer  <feinerer@logic.at>
148    
149            * R/complete.R (stemCompletion): New completion heuristics.
150    
151    2010-02-17  Ingo Feinerer  <feinerer@logic.at>
152    
153            * R/plot.R (plot.TermDocumentMatrix): Memory improvements.
154    
155    2010-02-06  Ingo Feinerer  <feinerer@logic.at>
156    
157            * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
158            setOldClass(c(..., "list")) works.
159    
160    2010-01-22  Ingo Feinerer  <feinerer@logic.at>
161    
162            * R/transform.R (stemDocument.character): In case input is a
163            simple character just delegate to the default Snowball stemmer.
164    
165    2010-01-15  Ingo Feinerer  <feinerer@logic.at>
166    
167            * R/reader.R (readReut21578XML, readRCV1): Extract more meta
168            data.
169    
170    2010-01-12  Ingo Feinerer  <feinerer@logic.at>
171    
172            * R/doc.R (`Content<-`): Be careful with names attribute.
173    
174    2010-01-07  Stefan Theussl  <stefan.theussl@wu.ac.at>
175    
176            * R/source.R (DirSource): Improved implementation especially when
177            handling many (> 1M) files.
178    
179    2009-12-22  Ingo Feinerer  <feinerer@logic.at>
180    
181            * R/source.R (getElem.URISource): Use encoding argument.
182    
183    2009-12-11  Ingo Feinerer  <feinerer@logic.at>
184    
185            * R/doc.R (setOldClass): Register S3 document classes to be
186            recognized by S4 methods.
187    
188    2009-11-25  Ingo Feinerer  <feinerer@logic.at>
189    
190            * R/matrix.R (termFreq): Add option to remove punctuation
191            characters.
192    
193    2009-11-19  Ingo Feinerer  <feinerer@logic.at>
194    
195            * R/matrix.R (c.TermDocumentMatrix): Added combine method for
196            merging multiple term-document matrices.
197    
198    2009-11-17  Ingo Feinerer  <feinerer@logic.at>
199    
200            * R/corpus.R (setOldClass): Register S3 corpus classes to be
201            recognized by S4 methods.
202    
203            * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
204            that CRAN Mac OS X builds do not fail any longer.
205    
206    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
207    
208            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
209            of RWeka:AlphabeticTokenizer() as default.
210    
211    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
212    
213            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
214            caused words at the beginning or the end of a line not to be removed. Do
215            not delete whitespace anymore.
216    
217    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
218    
219            * R/source.R (DirSource): Default to working directory if no path
220            is specified.
221    
222    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
223    
224            * R/source.R (DirSource): Stop on empty directories.
225    
226    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
227    
228            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
229            named documents.
230    
231    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
232    
233            * R/transform.R (removeWords): Improve regular expressions.
234    
235    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
236    
237            * R/meta.R (DublinCore): Allow lower case tags.
238    
239    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
240    
241            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
242            instead of x$children.
243    
244  2009-09-15  Ingo Feinerer  <feinerer@logic.at>  2009-09-15  Ingo Feinerer  <feinerer@logic.at>
245    
246          * R/preprocess.R (preprocessReut21578XML): Fix generated file names.          * R/preprocess.R (preprocessReut21578XML): Fix generated file names.

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