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revision 1007, Tue Sep 15 18:02:44 2009 UTC revision 1147, Tue Oct 11 15:41:49 2011 UTC
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1    2011-10-11  Ingo Feinerer  <feinerer@logic.at>
2    
3            * R/meta.R (`meta<-.Corpus`): Assume that the replacement value
4            can be accessed via '[' and not '[['.
5    
6    2011-08-24  Ingo Feinerer  <feinerer@logic.at>
7    
8            * R/stopwords.R (stopwords): Raise an error if no stopwords are
9            available for requested language. Suggested by Derek M Jones.
10    
11    2011-05-27  Ingo Feinerer  <feinerer@logic.at>
12    
13            * R/weight.R (weightSMART): Implement Cosine and pivoted unique
14            normalization.
15    
16    2011-02-17  Ingo Feinerer  <feinerer@logic.at>
17    
18            * R/transform.R (stemDocument.PlainTextDocument): Use language
19            argument.
20    
21    2011-02-04  Ingo Feinerer  <feinerer@logic.at>
22    
23            * R/source.R: Store strings and connections instead of unevaluated
24            calls.
25    
26    2010-11-26  Ingo Feinerer  <feinerer@logic.at>
27    
28            * R/corpus.R (Corpus): Allow init and exit hooks for readers.
29    
30    2010-10-22  Ingo Feinerer  <feinerer@logic.at>
31    
32            * R/matrix.R (.TermDocumentMatrix): Make Weighting an attribute
33            (instead of a list element).
34    
35    2010-10-16  Ingo Feinerer  <feinerer@logic.at>
36    
37            * R/corpus.R (`[[.VCorpus`, `[[.PCorpus'): Access individual
38            documents by names (fallback to IDs if names are not set).
39    
40    2010-08-25  Ingo Feinerer  <feinerer@logic.at>
41    
42            * R/corpus.R (c.Corpus): When concatenating corpora, the argument
43            \code{recursive} now determines whether existing corpus meta data
44            is used.
45    
46    2010-08-06  Ingo Feinerer  <feinerer@logic.at>
47    
48            * R/transform.R: Removed convert_UTF_8(). Use enc2utf8() instead.
49    
50    2010-06-17  Ingo Feinerer  <feinerer@logic.at>
51    
52            * R/matrix.R (TermDocumentMatrix): If a dictionary is given do not
53            remove terms not occurring in the corpus anymore.
54    
55    2010-06-02  Ingo Feinerer  <feinerer@logic.at>
56    
57            * R/plot.R (Zipf_plot, Heaps_plot): Plotting functions for Zipf's
58            and Heaps' law.
59    
60    2010-05-18  Ingo Feinerer  <feinerer@logic.at>
61    
62            * R/corpus.R (Corpus, PCorpus): Use element names as IDs if
63            provided by a source.
64    
65    2010-04-09  Ingo Feinerer  <feinerer@logic.at>
66    
67            * R/source.R (.Source): Provide document names.
68    
69    2010-04-07  Ingo Feinerer  <feinerer@logic.at>
70    
71            * R/meta.R (`content_or_meta`): Utility function.
72    
73    2010-03-19  Ingo Feinerer  <feinerer@logic.at>
74    
75            * R/reader.R (readReut21578XML, readReut21578XMLasPlain): Extract
76            TOPICS, LEWISSPLIT, CGISPLIT, and OLDID meta tags.
77    
78    2010-03-03  Ingo Feinerer  <feinerer@logic.at>
79    
80            * R/weight.R (weightTfIdf): Added normalization option.
81    
82            * man/tm_tag_score.Rd: Add General Inquirer example for sentiment
83            analysis.
84    
85    2010-02-25  Ingo Feinerer  <feinerer@logic.at>
86    
87            * R/score.R (tm_tag_score): Compute a score from the number of
88            tags matching in a document.
89    
90    2010-02-18  Ingo Feinerer  <feinerer@logic.at>
91    
92            * R/complete.R (stemCompletion): New completion heuristics.
93    
94    2010-02-17  Ingo Feinerer  <feinerer@logic.at>
95    
96            * R/plot.R (plot.TermDocumentMatrix): Memory improvements.
97    
98    2010-02-06  Ingo Feinerer  <feinerer@logic.at>
99    
100            * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
101            setOldClass(c(..., "list")) works.
102    
103    2010-01-22  Ingo Feinerer  <feinerer@logic.at>
104    
105            * R/transform.R (stemDocument.character): In case input is a
106            simple character just delegate to the default Snowball stemmer.
107    
108    2010-01-15  Ingo Feinerer  <feinerer@logic.at>
109    
110            * R/reader.R (readReut21578XML, readRCV1): Extract more meta
111            data.
112    
113    2010-01-12  Ingo Feinerer  <feinerer@logic.at>
114    
115            * R/doc.R (`Content<-`): Be careful with names attribute.
116    
117    2010-01-07  Stefan Theussl  <stefan.theussl@wu.ac.at>
118    
119            * R/source.R (DirSource): Improved implementation especially when
120            handling many (> 1M) files.
121    
122    2009-12-22  Ingo Feinerer  <feinerer@logic.at>
123    
124            * R/source.R (getElem.URISource): Use encoding argument.
125    
126    2009-12-11  Ingo Feinerer  <feinerer@logic.at>
127    
128            * R/doc.R (setOldClass): Register S3 document classes to be
129            recognized by S4 methods.
130    
131    2009-11-25  Ingo Feinerer  <feinerer@logic.at>
132    
133            * R/matrix.R (termFreq): Add option to remove punctuation
134            characters.
135    
136    2009-11-19  Ingo Feinerer  <feinerer@logic.at>
137    
138            * R/matrix.R (c.TermDocumentMatrix): Added combine method for
139            merging multiple term-document matrices.
140    
141    2009-11-17  Ingo Feinerer  <feinerer@logic.at>
142    
143            * R/corpus.R (setOldClass): Register S3 corpus classes to be
144            recognized by S4 methods.
145    
146            * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
147            that CRAN Mac OS X builds do not fail any longer.
148    
149    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
150    
151            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
152            of RWeka:AlphabeticTokenizer() as default.
153    
154    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
155    
156            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
157            caused words at the beginning or the end of a line not to be removed. Do
158            not delete whitespace anymore.
159    
160    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
161    
162            * R/source.R (DirSource): Default to working directory if no path
163            is specified.
164    
165    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
166    
167            * R/source.R (DirSource): Stop on empty directories.
168    
169    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
170    
171            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
172            named documents.
173    
174    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
175    
176            * R/transform.R (removeWords): Improve regular expressions.
177    
178    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
179    
180            * R/meta.R (DublinCore): Allow lower case tags.
181    
182    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
183    
184            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
185            instead of x$children.
186    
187  2009-09-15  Ingo Feinerer  <feinerer@logic.at>  2009-09-15  Ingo Feinerer  <feinerer@logic.at>
188    
189          * R/preprocess.R (preprocessReut21578XML): Fix generated file names.          * R/preprocess.R (preprocessReut21578XML): Fix generated file names.

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