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revision 1007, Tue Sep 15 18:02:44 2009 UTC revision 1136, Fri May 27 11:50:39 2011 UTC
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1    2011-05-27  Ingo Feinerer  <feinerer@logic.at>
2    
3            * R/weight.R (weightSMART): Implement Cosine and pivoted unique
4            normalization.
5    
6    2011-02-17  Ingo Feinerer  <feinerer@logic.at>
7    
8            * R/transform.R (stemDocument.PlainTextDocument): Use language
9            argument.
10    
11    2011-02-04  Ingo Feinerer  <feinerer@logic.at>
12    
13            * R/source.R: Store strings and connections instead of unevaluated
14            calls.
15    
16    2010-11-26  Ingo Feinerer  <feinerer@logic.at>
17    
18            * R/corpus.R (Corpus): Allow init and exit hooks for readers.
19    
20    2010-10-22  Ingo Feinerer  <feinerer@logic.at>
21    
22            * R/matrix.R (.TermDocumentMatrix): Make Weighting an attribute
23            (instead of a list element).
24    
25    2010-10-16  Ingo Feinerer  <feinerer@logic.at>
26    
27            * R/corpus.R (`[[.VCorpus`, `[[.PCorpus'): Access individual
28            documents by names (fallback to IDs if names are not set).
29    
30    2010-08-25  Ingo Feinerer  <feinerer@logic.at>
31    
32            * R/corpus.R (c.Corpus): When concatenating corpora, the argument
33            \code{recursive} now determines whether existing corpus meta data
34            is used.
35    
36    2010-08-06  Ingo Feinerer  <feinerer@logic.at>
37    
38            * R/transform.R: Removed convert_UTF_8(). Use enc2utf8() instead.
39    
40    2010-06-17  Ingo Feinerer  <feinerer@logic.at>
41    
42            * R/matrix.R (TermDocumentMatrix): If a dictionary is given do not
43            remove terms not occurring in the corpus anymore.
44    
45    2010-06-02  Ingo Feinerer  <feinerer@logic.at>
46    
47            * R/plot.R (Zipf_plot, Heaps_plot): Plotting functions for Zipf's
48            and Heaps' law.
49    
50    2010-05-18  Ingo Feinerer  <feinerer@logic.at>
51    
52            * R/corpus.R (Corpus, PCorpus): Use element names as IDs if
53            provided by a source.
54    
55    2010-04-09  Ingo Feinerer  <feinerer@logic.at>
56    
57            * R/source.R (.Source): Provide document names.
58    
59    2010-04-07  Ingo Feinerer  <feinerer@logic.at>
60    
61            * R/meta.R (`content_or_meta`): Utility function.
62    
63    2010-03-19  Ingo Feinerer  <feinerer@logic.at>
64    
65            * R/reader.R (readReut21578XML, readReut21578XMLasPlain): Extract
66            TOPICS, LEWISSPLIT, CGISPLIT, and OLDID meta tags.
67    
68    2010-03-03  Ingo Feinerer  <feinerer@logic.at>
69    
70            * R/weight.R (weightTfIdf): Added normalization option.
71    
72            * man/tm_tag_score.Rd: Add General Inquirer example for sentiment
73            analysis.
74    
75    2010-02-25  Ingo Feinerer  <feinerer@logic.at>
76    
77            * R/score.R (tm_tag_score): Compute a score from the number of
78            tags matching in a document.
79    
80    2010-02-18  Ingo Feinerer  <feinerer@logic.at>
81    
82            * R/complete.R (stemCompletion): New completion heuristics.
83    
84    2010-02-17  Ingo Feinerer  <feinerer@logic.at>
85    
86            * R/plot.R (plot.TermDocumentMatrix): Memory improvements.
87    
88    2010-02-06  Ingo Feinerer  <feinerer@logic.at>
89    
90            * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
91            setOldClass(c(..., "list")) works.
92    
93    2010-01-22  Ingo Feinerer  <feinerer@logic.at>
94    
95            * R/transform.R (stemDocument.character): In case input is a
96            simple character just delegate to the default Snowball stemmer.
97    
98    2010-01-15  Ingo Feinerer  <feinerer@logic.at>
99    
100            * R/reader.R (readReut21578XML, readRCV1): Extract more meta
101            data.
102    
103    2010-01-12  Ingo Feinerer  <feinerer@logic.at>
104    
105            * R/doc.R (`Content<-`): Be careful with names attribute.
106    
107    2010-01-07  Stefan Theussl  <stefan.theussl@wu.ac.at>
108    
109            * R/source.R (DirSource): Improved implementation especially when
110            handling many (> 1M) files.
111    
112    2009-12-22  Ingo Feinerer  <feinerer@logic.at>
113    
114            * R/source.R (getElem.URISource): Use encoding argument.
115    
116    2009-12-11  Ingo Feinerer  <feinerer@logic.at>
117    
118            * R/doc.R (setOldClass): Register S3 document classes to be
119            recognized by S4 methods.
120    
121    2009-11-25  Ingo Feinerer  <feinerer@logic.at>
122    
123            * R/matrix.R (termFreq): Add option to remove punctuation
124            characters.
125    
126    2009-11-19  Ingo Feinerer  <feinerer@logic.at>
127    
128            * R/matrix.R (c.TermDocumentMatrix): Added combine method for
129            merging multiple term-document matrices.
130    
131    2009-11-17  Ingo Feinerer  <feinerer@logic.at>
132    
133            * R/corpus.R (setOldClass): Register S3 corpus classes to be
134            recognized by S4 methods.
135    
136            * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
137            that CRAN Mac OS X builds do not fail any longer.
138    
139    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
140    
141            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
142            of RWeka:AlphabeticTokenizer() as default.
143    
144    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
145    
146            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
147            caused words at the beginning or the end of a line not to be removed. Do
148            not delete whitespace anymore.
149    
150    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
151    
152            * R/source.R (DirSource): Default to working directory if no path
153            is specified.
154    
155    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
156    
157            * R/source.R (DirSource): Stop on empty directories.
158    
159    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
160    
161            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
162            named documents.
163    
164    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
165    
166            * R/transform.R (removeWords): Improve regular expressions.
167    
168    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
169    
170            * R/meta.R (DublinCore): Allow lower case tags.
171    
172    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
173    
174            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
175            instead of x$children.
176    
177  2009-09-15  Ingo Feinerer  <feinerer@logic.at>  2009-09-15  Ingo Feinerer  <feinerer@logic.at>
178    
179          * R/preprocess.R (preprocessReut21578XML): Fix generated file names.          * R/preprocess.R (preprocessReut21578XML): Fix generated file names.

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