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revision 993, Sun Sep 6 17:51:08 2009 UTC revision 1150, Tue Nov 15 15:37:17 2011 UTC
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1    2011-11-15  Ingo Feinerer  <feinerer@logic.at>
2    
3            * man/getTokenizers.Rd: Document getTokenizers().
4    
5            * man/tokenizer.Rd: Document MC_tokenizer() and scan_tokenizer().
6    
7    2011-11-04  Ingo Feinerer  <feinerer@logic.at>
8    
9            * man/matrix.Rd: Document as.TermDocumentMatrix.term_frequency.
10    
11            * man/combine.Rd: Document c.term_frequency().
12    
13    2011-10-11  Ingo Feinerer  <feinerer@logic.at>
14    
15            * R/meta.R (`meta<-.Corpus`): Assume that the replacement value
16            can be accessed via '[' and not '[['.
17    
18    2011-08-24  Ingo Feinerer  <feinerer@logic.at>
19    
20            * R/stopwords.R (stopwords): Raise an error if no stopwords are
21            available for requested language. Suggested by Derek M Jones.
22    
23    2011-05-27  Ingo Feinerer  <feinerer@logic.at>
24    
25            * R/weight.R (weightSMART): Implement Cosine and pivoted unique
26            normalization.
27    
28    2011-02-17  Ingo Feinerer  <feinerer@logic.at>
29    
30            * R/transform.R (stemDocument.PlainTextDocument): Use language
31            argument.
32    
33    2011-02-04  Ingo Feinerer  <feinerer@logic.at>
34    
35            * R/source.R: Store strings and connections instead of unevaluated
36            calls.
37    
38    2010-11-26  Ingo Feinerer  <feinerer@logic.at>
39    
40            * R/corpus.R (Corpus): Allow init and exit hooks for readers.
41    
42    2010-10-22  Ingo Feinerer  <feinerer@logic.at>
43    
44            * R/matrix.R (.TermDocumentMatrix): Make Weighting an attribute
45            (instead of a list element).
46    
47    2010-10-16  Ingo Feinerer  <feinerer@logic.at>
48    
49            * R/corpus.R (`[[.VCorpus`, `[[.PCorpus'): Access individual
50            documents by names (fallback to IDs if names are not set).
51    
52    2010-08-25  Ingo Feinerer  <feinerer@logic.at>
53    
54            * R/corpus.R (c.Corpus): When concatenating corpora, the argument
55            \code{recursive} now determines whether existing corpus meta data
56            is used.
57    
58    2010-08-06  Ingo Feinerer  <feinerer@logic.at>
59    
60            * R/transform.R: Removed convert_UTF_8(). Use enc2utf8() instead.
61    
62    2010-06-17  Ingo Feinerer  <feinerer@logic.at>
63    
64            * R/matrix.R (TermDocumentMatrix): If a dictionary is given do not
65            remove terms not occurring in the corpus anymore.
66    
67    2010-06-02  Ingo Feinerer  <feinerer@logic.at>
68    
69            * R/plot.R (Zipf_plot, Heaps_plot): Plotting functions for Zipf's
70            and Heaps' law.
71    
72    2010-05-18  Ingo Feinerer  <feinerer@logic.at>
73    
74            * R/corpus.R (Corpus, PCorpus): Use element names as IDs if
75            provided by a source.
76    
77    2010-04-09  Ingo Feinerer  <feinerer@logic.at>
78    
79            * R/source.R (.Source): Provide document names.
80    
81    2010-04-07  Ingo Feinerer  <feinerer@logic.at>
82    
83            * R/meta.R (`content_or_meta`): Utility function.
84    
85    2010-03-19  Ingo Feinerer  <feinerer@logic.at>
86    
87            * R/reader.R (readReut21578XML, readReut21578XMLasPlain): Extract
88            TOPICS, LEWISSPLIT, CGISPLIT, and OLDID meta tags.
89    
90    2010-03-03  Ingo Feinerer  <feinerer@logic.at>
91    
92            * R/weight.R (weightTfIdf): Added normalization option.
93    
94            * man/tm_tag_score.Rd: Add General Inquirer example for sentiment
95            analysis.
96    
97    2010-02-25  Ingo Feinerer  <feinerer@logic.at>
98    
99            * R/score.R (tm_tag_score): Compute a score from the number of
100            tags matching in a document.
101    
102    2010-02-18  Ingo Feinerer  <feinerer@logic.at>
103    
104            * R/complete.R (stemCompletion): New completion heuristics.
105    
106    2010-02-17  Ingo Feinerer  <feinerer@logic.at>
107    
108            * R/plot.R (plot.TermDocumentMatrix): Memory improvements.
109    
110    2010-02-06  Ingo Feinerer  <feinerer@logic.at>
111    
112            * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
113            setOldClass(c(..., "list")) works.
114    
115    2010-01-22  Ingo Feinerer  <feinerer@logic.at>
116    
117            * R/transform.R (stemDocument.character): In case input is a
118            simple character just delegate to the default Snowball stemmer.
119    
120    2010-01-15  Ingo Feinerer  <feinerer@logic.at>
121    
122            * R/reader.R (readReut21578XML, readRCV1): Extract more meta
123            data.
124    
125    2010-01-12  Ingo Feinerer  <feinerer@logic.at>
126    
127            * R/doc.R (`Content<-`): Be careful with names attribute.
128    
129    2010-01-07  Stefan Theussl  <stefan.theussl@wu.ac.at>
130    
131            * R/source.R (DirSource): Improved implementation especially when
132            handling many (> 1M) files.
133    
134    2009-12-22  Ingo Feinerer  <feinerer@logic.at>
135    
136            * R/source.R (getElem.URISource): Use encoding argument.
137    
138    2009-12-11  Ingo Feinerer  <feinerer@logic.at>
139    
140            * R/doc.R (setOldClass): Register S3 document classes to be
141            recognized by S4 methods.
142    
143    2009-11-25  Ingo Feinerer  <feinerer@logic.at>
144    
145            * R/matrix.R (termFreq): Add option to remove punctuation
146            characters.
147    
148    2009-11-19  Ingo Feinerer  <feinerer@logic.at>
149    
150            * R/matrix.R (c.TermDocumentMatrix): Added combine method for
151            merging multiple term-document matrices.
152    
153    2009-11-17  Ingo Feinerer  <feinerer@logic.at>
154    
155            * R/corpus.R (setOldClass): Register S3 corpus classes to be
156            recognized by S4 methods.
157    
158            * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
159            that CRAN Mac OS X builds do not fail any longer.
160    
161    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
162    
163            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
164            of RWeka:AlphabeticTokenizer() as default.
165    
166    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
167    
168            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
169            caused words at the beginning or the end of a line not to be removed. Do
170            not delete whitespace anymore.
171    
172    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
173    
174            * R/source.R (DirSource): Default to working directory if no path
175            is specified.
176    
177    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
178    
179            * R/source.R (DirSource): Stop on empty directories.
180    
181    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
182    
183            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
184            named documents.
185    
186    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
187    
188            * R/transform.R (removeWords): Improve regular expressions.
189    
190    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
191    
192            * R/meta.R (DublinCore): Allow lower case tags.
193    
194    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
195    
196            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
197            instead of x$children.
198    
199    2009-09-15  Ingo Feinerer  <feinerer@logic.at>
200    
201            * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
202    
203  2009-09-06  Ingo Feinerer  <feinerer@logic.at>  2009-09-06  Ingo Feinerer  <feinerer@logic.at>
204    
205          * R/: Use S3 instead of S4 class system.          * R/: Use S3 instead of S4 class system.

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