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revision 1007, Tue Sep 15 18:02:44 2009 UTC revision 1159, Tue Dec 6 15:11:45 2011 UTC
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1    2011-12-06  Ingo Feinerer  <feinerer@logic.at>
2    
3            * R/matrix.R (termFreq): Allow reordering of control option
4            processing.
5    
6    2011-11-17  Ingo Feinerer  <feinerer@logic.at>
7    
8            * R/reader.R (readPDF): Use tools:::pdf_info() instead of external
9            pdfinfo tool.
10    
11            * inst/stopwords/SMART.dat: Add SMART information retrieval system
12            stopwords (which are also used by the MC toolkit).
13    
14            * R/matrix (termFreq): Allow local option \code{bounds$local} to
15            restrict how often a term may appear in each document (generalizes
16            \code{minDocFreq}). Similarly the local option \code{wordLenghts}
17            for word length bounds (generalizes \code{minWordLength}).
18    
19            * R/matrix.R (TermDocumentMatrix.VCorpus): New global option
20            \code{bounds$global} for restricting how often a term is allowed
21            to appear in different documents.
22    
23            * R/matrix.R (TermDocumentMatrix.VCorpus): Distinguish between
24            local options delegated internally to termFreq() and global
25            options which are processed by the term-document matrix
26            constructor itself.
27    
28    2011-11-15  Ingo Feinerer  <feinerer@logic.at>
29    
30            * man/getTokenizers.Rd: Document getTokenizers().
31    
32            * man/tokenizer.Rd: Document MC_tokenizer() and scan_tokenizer().
33    
34    2011-11-04  Ingo Feinerer  <feinerer@logic.at>
35    
36            * man/matrix.Rd: Document as.TermDocumentMatrix.term_frequency.
37    
38            * man/combine.Rd: Document c.term_frequency().
39    
40    2011-10-11  Ingo Feinerer  <feinerer@logic.at>
41    
42            * R/meta.R (`meta<-.Corpus`): Assume that the replacement value
43            can be accessed via '[' and not '[['.
44    
45    2011-08-24  Ingo Feinerer  <feinerer@logic.at>
46    
47            * R/stopwords.R (stopwords): Raise an error if no stopwords are
48            available for requested language. Suggested by Derek M Jones.
49    
50    2011-05-27  Ingo Feinerer  <feinerer@logic.at>
51    
52            * R/weight.R (weightSMART): Implement Cosine and pivoted unique
53            normalization.
54    
55    2011-02-17  Ingo Feinerer  <feinerer@logic.at>
56    
57            * R/transform.R (stemDocument.PlainTextDocument): Use language
58            argument.
59    
60    2011-02-04  Ingo Feinerer  <feinerer@logic.at>
61    
62            * R/source.R: Store strings and connections instead of unevaluated
63            calls.
64    
65    2010-11-26  Ingo Feinerer  <feinerer@logic.at>
66    
67            * R/corpus.R (Corpus): Allow init and exit hooks for readers.
68    
69    2010-10-22  Ingo Feinerer  <feinerer@logic.at>
70    
71            * R/matrix.R (.TermDocumentMatrix): Make Weighting an attribute
72            (instead of a list element).
73    
74    2010-10-16  Ingo Feinerer  <feinerer@logic.at>
75    
76            * R/corpus.R (`[[.VCorpus`, `[[.PCorpus'): Access individual
77            documents by names (fallback to IDs if names are not set).
78    
79    2010-08-25  Ingo Feinerer  <feinerer@logic.at>
80    
81            * R/corpus.R (c.Corpus): When concatenating corpora, the argument
82            \code{recursive} now determines whether existing corpus meta data
83            is used.
84    
85    2010-08-06  Ingo Feinerer  <feinerer@logic.at>
86    
87            * R/transform.R: Removed convert_UTF_8(). Use enc2utf8() instead.
88    
89    2010-06-17  Ingo Feinerer  <feinerer@logic.at>
90    
91            * R/matrix.R (TermDocumentMatrix): If a dictionary is given do not
92            remove terms not occurring in the corpus anymore.
93    
94    2010-06-02  Ingo Feinerer  <feinerer@logic.at>
95    
96            * R/plot.R (Zipf_plot, Heaps_plot): Plotting functions for Zipf's
97            and Heaps' law.
98    
99    2010-05-18  Ingo Feinerer  <feinerer@logic.at>
100    
101            * R/corpus.R (Corpus, PCorpus): Use element names as IDs if
102            provided by a source.
103    
104    2010-04-09  Ingo Feinerer  <feinerer@logic.at>
105    
106            * R/source.R (.Source): Provide document names.
107    
108    2010-04-07  Ingo Feinerer  <feinerer@logic.at>
109    
110            * R/meta.R (`content_or_meta`): Utility function.
111    
112    2010-03-19  Ingo Feinerer  <feinerer@logic.at>
113    
114            * R/reader.R (readReut21578XML, readReut21578XMLasPlain): Extract
115            TOPICS, LEWISSPLIT, CGISPLIT, and OLDID meta tags.
116    
117    2010-03-03  Ingo Feinerer  <feinerer@logic.at>
118    
119            * R/weight.R (weightTfIdf): Added normalization option.
120    
121            * man/tm_tag_score.Rd: Add General Inquirer example for sentiment
122            analysis.
123    
124    2010-02-25  Ingo Feinerer  <feinerer@logic.at>
125    
126            * R/score.R (tm_tag_score): Compute a score from the number of
127            tags matching in a document.
128    
129    2010-02-18  Ingo Feinerer  <feinerer@logic.at>
130    
131            * R/complete.R (stemCompletion): New completion heuristics.
132    
133    2010-02-17  Ingo Feinerer  <feinerer@logic.at>
134    
135            * R/plot.R (plot.TermDocumentMatrix): Memory improvements.
136    
137    2010-02-06  Ingo Feinerer  <feinerer@logic.at>
138    
139            * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
140            setOldClass(c(..., "list")) works.
141    
142    2010-01-22  Ingo Feinerer  <feinerer@logic.at>
143    
144            * R/transform.R (stemDocument.character): In case input is a
145            simple character just delegate to the default Snowball stemmer.
146    
147    2010-01-15  Ingo Feinerer  <feinerer@logic.at>
148    
149            * R/reader.R (readReut21578XML, readRCV1): Extract more meta
150            data.
151    
152    2010-01-12  Ingo Feinerer  <feinerer@logic.at>
153    
154            * R/doc.R (`Content<-`): Be careful with names attribute.
155    
156    2010-01-07  Stefan Theussl  <stefan.theussl@wu.ac.at>
157    
158            * R/source.R (DirSource): Improved implementation especially when
159            handling many (> 1M) files.
160    
161    2009-12-22  Ingo Feinerer  <feinerer@logic.at>
162    
163            * R/source.R (getElem.URISource): Use encoding argument.
164    
165    2009-12-11  Ingo Feinerer  <feinerer@logic.at>
166    
167            * R/doc.R (setOldClass): Register S3 document classes to be
168            recognized by S4 methods.
169    
170    2009-11-25  Ingo Feinerer  <feinerer@logic.at>
171    
172            * R/matrix.R (termFreq): Add option to remove punctuation
173            characters.
174    
175    2009-11-19  Ingo Feinerer  <feinerer@logic.at>
176    
177            * R/matrix.R (c.TermDocumentMatrix): Added combine method for
178            merging multiple term-document matrices.
179    
180    2009-11-17  Ingo Feinerer  <feinerer@logic.at>
181    
182            * R/corpus.R (setOldClass): Register S3 corpus classes to be
183            recognized by S4 methods.
184    
185            * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
186            that CRAN Mac OS X builds do not fail any longer.
187    
188    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
189    
190            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
191            of RWeka:AlphabeticTokenizer() as default.
192    
193    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
194    
195            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
196            caused words at the beginning or the end of a line not to be removed. Do
197            not delete whitespace anymore.
198    
199    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
200    
201            * R/source.R (DirSource): Default to working directory if no path
202            is specified.
203    
204    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
205    
206            * R/source.R (DirSource): Stop on empty directories.
207    
208    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
209    
210            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
211            named documents.
212    
213    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
214    
215            * R/transform.R (removeWords): Improve regular expressions.
216    
217    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
218    
219            * R/meta.R (DublinCore): Allow lower case tags.
220    
221    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
222    
223            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
224            instead of x$children.
225    
226  2009-09-15  Ingo Feinerer  <feinerer@logic.at>  2009-09-15  Ingo Feinerer  <feinerer@logic.at>
227    
228          * R/preprocess.R (preprocessReut21578XML): Fix generated file names.          * R/preprocess.R (preprocessReut21578XML): Fix generated file names.

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