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revision 1007, Tue Sep 15 18:02:44 2009 UTC revision 1164, Mon Dec 12 06:42:28 2011 UTC
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1    2011-12-12  Ingo Feinerer  <feinerer@logic.at>
2    
3            * R/utils.R (map_IETF_Snowball): Map empty input to "porter".
4    
5    2011-12-07  Ingo Feinerer  <feinerer@logic.at>
6    
7            * R/transform.R (removePunctuation): Add option to preserve
8            intra-word dashes.
9    
10    2011-12-06  Ingo Feinerer  <feinerer@logic.at>
11    
12            * R/matrix.R (termFreq): Allow reordering of control option
13            processing.
14    
15    2011-11-17  Ingo Feinerer  <feinerer@logic.at>
16    
17            * R/reader.R (readPDF): Use tools:::pdf_info() instead of external
18            pdfinfo tool.
19    
20            * inst/stopwords/SMART.dat: Add SMART information retrieval system
21            stopwords (which are also used by the MC toolkit).
22    
23            * R/matrix (termFreq): Allow local option \code{bounds$local} to
24            restrict how often a term may appear in each document (generalizes
25            \code{minDocFreq}). Similarly the local option \code{wordLenghts}
26            for word length bounds (generalizes \code{minWordLength}).
27    
28            * R/matrix.R (TermDocumentMatrix.VCorpus): New global option
29            \code{bounds$global} for restricting how often a term is allowed
30            to appear in different documents.
31    
32            * R/matrix.R (TermDocumentMatrix.VCorpus): Distinguish between
33            local options delegated internally to termFreq() and global
34            options which are processed by the term-document matrix
35            constructor itself.
36    
37    2011-11-15  Ingo Feinerer  <feinerer@logic.at>
38    
39            * man/getTokenizers.Rd: Document getTokenizers().
40    
41            * man/tokenizer.Rd: Document MC_tokenizer() and scan_tokenizer().
42    
43    2011-11-04  Ingo Feinerer  <feinerer@logic.at>
44    
45            * man/matrix.Rd: Document as.TermDocumentMatrix.term_frequency.
46    
47            * man/combine.Rd: Document c.term_frequency().
48    
49    2011-10-11  Ingo Feinerer  <feinerer@logic.at>
50    
51            * R/meta.R (`meta<-.Corpus`): Assume that the replacement value
52            can be accessed via '[' and not '[['.
53    
54    2011-08-24  Ingo Feinerer  <feinerer@logic.at>
55    
56            * R/stopwords.R (stopwords): Raise an error if no stopwords are
57            available for requested language. Suggested by Derek M Jones.
58    
59    2011-05-27  Ingo Feinerer  <feinerer@logic.at>
60    
61            * R/weight.R (weightSMART): Implement Cosine and pivoted unique
62            normalization.
63    
64    2011-02-17  Ingo Feinerer  <feinerer@logic.at>
65    
66            * R/transform.R (stemDocument.PlainTextDocument): Use language
67            argument.
68    
69    2011-02-04  Ingo Feinerer  <feinerer@logic.at>
70    
71            * R/source.R: Store strings and connections instead of unevaluated
72            calls.
73    
74    2010-11-26  Ingo Feinerer  <feinerer@logic.at>
75    
76            * R/corpus.R (Corpus): Allow init and exit hooks for readers.
77    
78    2010-10-22  Ingo Feinerer  <feinerer@logic.at>
79    
80            * R/matrix.R (.TermDocumentMatrix): Make Weighting an attribute
81            (instead of a list element).
82    
83    2010-10-16  Ingo Feinerer  <feinerer@logic.at>
84    
85            * R/corpus.R (`[[.VCorpus`, `[[.PCorpus'): Access individual
86            documents by names (fallback to IDs if names are not set).
87    
88    2010-08-25  Ingo Feinerer  <feinerer@logic.at>
89    
90            * R/corpus.R (c.Corpus): When concatenating corpora, the argument
91            \code{recursive} now determines whether existing corpus meta data
92            is used.
93    
94    2010-08-06  Ingo Feinerer  <feinerer@logic.at>
95    
96            * R/transform.R: Removed convert_UTF_8(). Use enc2utf8() instead.
97    
98    2010-06-17  Ingo Feinerer  <feinerer@logic.at>
99    
100            * R/matrix.R (TermDocumentMatrix): If a dictionary is given do not
101            remove terms not occurring in the corpus anymore.
102    
103    2010-06-02  Ingo Feinerer  <feinerer@logic.at>
104    
105            * R/plot.R (Zipf_plot, Heaps_plot): Plotting functions for Zipf's
106            and Heaps' law.
107    
108    2010-05-18  Ingo Feinerer  <feinerer@logic.at>
109    
110            * R/corpus.R (Corpus, PCorpus): Use element names as IDs if
111            provided by a source.
112    
113    2010-04-09  Ingo Feinerer  <feinerer@logic.at>
114    
115            * R/source.R (.Source): Provide document names.
116    
117    2010-04-07  Ingo Feinerer  <feinerer@logic.at>
118    
119            * R/meta.R (`content_or_meta`): Utility function.
120    
121    2010-03-19  Ingo Feinerer  <feinerer@logic.at>
122    
123            * R/reader.R (readReut21578XML, readReut21578XMLasPlain): Extract
124            TOPICS, LEWISSPLIT, CGISPLIT, and OLDID meta tags.
125    
126    2010-03-03  Ingo Feinerer  <feinerer@logic.at>
127    
128            * R/weight.R (weightTfIdf): Added normalization option.
129    
130            * man/tm_tag_score.Rd: Add General Inquirer example for sentiment
131            analysis.
132    
133    2010-02-25  Ingo Feinerer  <feinerer@logic.at>
134    
135            * R/score.R (tm_tag_score): Compute a score from the number of
136            tags matching in a document.
137    
138    2010-02-18  Ingo Feinerer  <feinerer@logic.at>
139    
140            * R/complete.R (stemCompletion): New completion heuristics.
141    
142    2010-02-17  Ingo Feinerer  <feinerer@logic.at>
143    
144            * R/plot.R (plot.TermDocumentMatrix): Memory improvements.
145    
146    2010-02-06  Ingo Feinerer  <feinerer@logic.at>
147    
148            * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
149            setOldClass(c(..., "list")) works.
150    
151    2010-01-22  Ingo Feinerer  <feinerer@logic.at>
152    
153            * R/transform.R (stemDocument.character): In case input is a
154            simple character just delegate to the default Snowball stemmer.
155    
156    2010-01-15  Ingo Feinerer  <feinerer@logic.at>
157    
158            * R/reader.R (readReut21578XML, readRCV1): Extract more meta
159            data.
160    
161    2010-01-12  Ingo Feinerer  <feinerer@logic.at>
162    
163            * R/doc.R (`Content<-`): Be careful with names attribute.
164    
165    2010-01-07  Stefan Theussl  <stefan.theussl@wu.ac.at>
166    
167            * R/source.R (DirSource): Improved implementation especially when
168            handling many (> 1M) files.
169    
170    2009-12-22  Ingo Feinerer  <feinerer@logic.at>
171    
172            * R/source.R (getElem.URISource): Use encoding argument.
173    
174    2009-12-11  Ingo Feinerer  <feinerer@logic.at>
175    
176            * R/doc.R (setOldClass): Register S3 document classes to be
177            recognized by S4 methods.
178    
179    2009-11-25  Ingo Feinerer  <feinerer@logic.at>
180    
181            * R/matrix.R (termFreq): Add option to remove punctuation
182            characters.
183    
184    2009-11-19  Ingo Feinerer  <feinerer@logic.at>
185    
186            * R/matrix.R (c.TermDocumentMatrix): Added combine method for
187            merging multiple term-document matrices.
188    
189    2009-11-17  Ingo Feinerer  <feinerer@logic.at>
190    
191            * R/corpus.R (setOldClass): Register S3 corpus classes to be
192            recognized by S4 methods.
193    
194            * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
195            that CRAN Mac OS X builds do not fail any longer.
196    
197    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
198    
199            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
200            of RWeka:AlphabeticTokenizer() as default.
201    
202    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
203    
204            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
205            caused words at the beginning or the end of a line not to be removed. Do
206            not delete whitespace anymore.
207    
208    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
209    
210            * R/source.R (DirSource): Default to working directory if no path
211            is specified.
212    
213    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
214    
215            * R/source.R (DirSource): Stop on empty directories.
216    
217    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
218    
219            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
220            named documents.
221    
222    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
223    
224            * R/transform.R (removeWords): Improve regular expressions.
225    
226    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
227    
228            * R/meta.R (DublinCore): Allow lower case tags.
229    
230    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
231    
232            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
233            instead of x$children.
234    
235  2009-09-15  Ingo Feinerer  <feinerer@logic.at>  2009-09-15  Ingo Feinerer  <feinerer@logic.at>
236    
237          * R/preprocess.R (preprocessReut21578XML): Fix generated file names.          * R/preprocess.R (preprocessReut21578XML): Fix generated file names.

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