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revision 911, Sun Mar 22 17:55:16 2009 UTC revision 1149, Fri Nov 4 15:48:50 2011 UTC
# Line 1  Line 1 
1    2011-11-04  Ingo Feinerer  <feinerer@logic.at>
2    
3            * man/matrix.Rd: Document as.TermDocumentMatrix.term_frequency.
4    
5            * man/combine.Rd: Document c.term_frequency.
6    
7    2011-10-11  Ingo Feinerer  <feinerer@logic.at>
8    
9            * R/meta.R (`meta<-.Corpus`): Assume that the replacement value
10            can be accessed via '[' and not '[['.
11    
12    2011-08-24  Ingo Feinerer  <feinerer@logic.at>
13    
14            * R/stopwords.R (stopwords): Raise an error if no stopwords are
15            available for requested language. Suggested by Derek M Jones.
16    
17    2011-05-27  Ingo Feinerer  <feinerer@logic.at>
18    
19            * R/weight.R (weightSMART): Implement Cosine and pivoted unique
20            normalization.
21    
22    2011-02-17  Ingo Feinerer  <feinerer@logic.at>
23    
24            * R/transform.R (stemDocument.PlainTextDocument): Use language
25            argument.
26    
27    2011-02-04  Ingo Feinerer  <feinerer@logic.at>
28    
29            * R/source.R: Store strings and connections instead of unevaluated
30            calls.
31    
32    2010-11-26  Ingo Feinerer  <feinerer@logic.at>
33    
34            * R/corpus.R (Corpus): Allow init and exit hooks for readers.
35    
36    2010-10-22  Ingo Feinerer  <feinerer@logic.at>
37    
38            * R/matrix.R (.TermDocumentMatrix): Make Weighting an attribute
39            (instead of a list element).
40    
41    2010-10-16  Ingo Feinerer  <feinerer@logic.at>
42    
43            * R/corpus.R (`[[.VCorpus`, `[[.PCorpus'): Access individual
44            documents by names (fallback to IDs if names are not set).
45    
46    2010-08-25  Ingo Feinerer  <feinerer@logic.at>
47    
48            * R/corpus.R (c.Corpus): When concatenating corpora, the argument
49            \code{recursive} now determines whether existing corpus meta data
50            is used.
51    
52    2010-08-06  Ingo Feinerer  <feinerer@logic.at>
53    
54            * R/transform.R: Removed convert_UTF_8(). Use enc2utf8() instead.
55    
56    2010-06-17  Ingo Feinerer  <feinerer@logic.at>
57    
58            * R/matrix.R (TermDocumentMatrix): If a dictionary is given do not
59            remove terms not occurring in the corpus anymore.
60    
61    2010-06-02  Ingo Feinerer  <feinerer@logic.at>
62    
63            * R/plot.R (Zipf_plot, Heaps_plot): Plotting functions for Zipf's
64            and Heaps' law.
65    
66    2010-05-18  Ingo Feinerer  <feinerer@logic.at>
67    
68            * R/corpus.R (Corpus, PCorpus): Use element names as IDs if
69            provided by a source.
70    
71    2010-04-09  Ingo Feinerer  <feinerer@logic.at>
72    
73            * R/source.R (.Source): Provide document names.
74    
75    2010-04-07  Ingo Feinerer  <feinerer@logic.at>
76    
77            * R/meta.R (`content_or_meta`): Utility function.
78    
79    2010-03-19  Ingo Feinerer  <feinerer@logic.at>
80    
81            * R/reader.R (readReut21578XML, readReut21578XMLasPlain): Extract
82            TOPICS, LEWISSPLIT, CGISPLIT, and OLDID meta tags.
83    
84    2010-03-03  Ingo Feinerer  <feinerer@logic.at>
85    
86            * R/weight.R (weightTfIdf): Added normalization option.
87    
88            * man/tm_tag_score.Rd: Add General Inquirer example for sentiment
89            analysis.
90    
91    2010-02-25  Ingo Feinerer  <feinerer@logic.at>
92    
93            * R/score.R (tm_tag_score): Compute a score from the number of
94            tags matching in a document.
95    
96    2010-02-18  Ingo Feinerer  <feinerer@logic.at>
97    
98            * R/complete.R (stemCompletion): New completion heuristics.
99    
100    2010-02-17  Ingo Feinerer  <feinerer@logic.at>
101    
102            * R/plot.R (plot.TermDocumentMatrix): Memory improvements.
103    
104    2010-02-06  Ingo Feinerer  <feinerer@logic.at>
105    
106            * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
107            setOldClass(c(..., "list")) works.
108    
109    2010-01-22  Ingo Feinerer  <feinerer@logic.at>
110    
111            * R/transform.R (stemDocument.character): In case input is a
112            simple character just delegate to the default Snowball stemmer.
113    
114    2010-01-15  Ingo Feinerer  <feinerer@logic.at>
115    
116            * R/reader.R (readReut21578XML, readRCV1): Extract more meta
117            data.
118    
119    2010-01-12  Ingo Feinerer  <feinerer@logic.at>
120    
121            * R/doc.R (`Content<-`): Be careful with names attribute.
122    
123    2010-01-07  Stefan Theussl  <stefan.theussl@wu.ac.at>
124    
125            * R/source.R (DirSource): Improved implementation especially when
126            handling many (> 1M) files.
127    
128    2009-12-22  Ingo Feinerer  <feinerer@logic.at>
129    
130            * R/source.R (getElem.URISource): Use encoding argument.
131    
132    2009-12-11  Ingo Feinerer  <feinerer@logic.at>
133    
134            * R/doc.R (setOldClass): Register S3 document classes to be
135            recognized by S4 methods.
136    
137    2009-11-25  Ingo Feinerer  <feinerer@logic.at>
138    
139            * R/matrix.R (termFreq): Add option to remove punctuation
140            characters.
141    
142    2009-11-19  Ingo Feinerer  <feinerer@logic.at>
143    
144            * R/matrix.R (c.TermDocumentMatrix): Added combine method for
145            merging multiple term-document matrices.
146    
147    2009-11-17  Ingo Feinerer  <feinerer@logic.at>
148    
149            * R/corpus.R (setOldClass): Register S3 corpus classes to be
150            recognized by S4 methods.
151    
152            * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
153            that CRAN Mac OS X builds do not fail any longer.
154    
155    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
156    
157            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
158            of RWeka:AlphabeticTokenizer() as default.
159    
160    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
161    
162            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
163            caused words at the beginning or the end of a line not to be removed. Do
164            not delete whitespace anymore.
165    
166    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
167    
168            * R/source.R (DirSource): Default to working directory if no path
169            is specified.
170    
171    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
172    
173            * R/source.R (DirSource): Stop on empty directories.
174    
175    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
176    
177            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
178            named documents.
179    
180    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
181    
182            * R/transform.R (removeWords): Improve regular expressions.
183    
184    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
185    
186            * R/meta.R (DublinCore): Allow lower case tags.
187    
188    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
189    
190            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
191            instead of x$children.
192    
193    2009-09-15  Ingo Feinerer  <feinerer@logic.at>
194    
195            * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
196    
197    2009-09-06  Ingo Feinerer  <feinerer@logic.at>
198    
199            * R/: Use S3 instead of S4 class system.
200    
201    2009-08-11  Ingo Feinerer  <feinerer@logic.at>
202    
203            * R/reader.R (readMail): Moved to tm.plugin.mail package.
204    
205    2009-07-04  Ingo Feinerer  <feinerer@logic.at>
206    
207            * R/reader.R (readNewsgroup): Rename to readMail as newsgroup
208            postings are basically e-mails with some extra headers.
209    
210    2009-07-03  Ingo Feinerer  <feinerer@logic.at>
211    
212            * R/transform.R: Move convertMboxEml, removeCitation,
213            removeMultipart, and removeSignature to the tm.plugin.mail package
214            since they are mainly utility functions (for handling e-mails) and
215            not very framework specific.
216    
217    2009-06-28  Ingo Feinerer  <feinerer@logic.at>
218    
219            * man/: Fix documentation.
220    
221    2009-06-26  Ingo Feinerer  <feinerer@logic.at>
222    
223            * R/reader.R (readReut21578XMLasPlain): New reader which returns a
224            plain text document instead of an XML document for texts of the
225            Reuters-21578 dataset.
226    
227            * R/sparse.R: Removed since the slam package is now available on
228            CRAN.
229    
230            * DESCRIPTION (Depends): Add slam package.
231    
232    2009-06-17  Ingo Feinerer  <feinerer@logic.at>
233    
234            * R/transform.R (stemDoc): Fix character(0) handling.
235    
236    2009-06-12  Ingo Feinerer  <feinerer@logic.at>
237    
238            * R/doc.R (show): Pretty print.
239    
240    2009-05-27  Ingo Feinerer  <feinerer@logic.at>
241    
242            * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
243            gracefully.
244    
245    2009-05-13  Ingo Feinerer  <feinerer@logic.at>
246    
247            * R/corpus.R: Make corpus virtual. Implement corpus with standard
248            and permanent storage semantics.
249    
250            * DESCRIPTION: New major release. A *lot* of improvements.
251    
252    2009-05-04   Ingo Feinerer <feinerer@logic.at>
253    
254            * NAMESPACE: Export some simple_triplet_matrix functions.
255    
256    2009-04-28   Ingo Feinerer <feinerer@logic.at>
257    
258            * R/weight.R: Adapt tf-idf to new matrix format.
259    
260    2009-04-27  Ingo Feinerer  <feinerer@logic.at>
261    
262            * R/matrix.R: Create two distinct classes for term-document and
263            document-term matrices.
264    
265    2009-04-26  Ingo Feinerer  <feinerer@logic.at>
266    
267            * R/termdocmatrix.R: No longer use Matrix package. This reduces
268            package start-up time significantly.
269    
270    2009-04-11  Ingo Feinerer  <feinerer@logic.at>
271    
272            * inst/doc/tm.Rnw: Fix code/documentation mismatch.
273    
274    2009-04-04  Ingo Feinerer  <feinerer@logic.at>
275    
276            * R/transform.R (tmReduce): Combine multiple maps into one
277            transformation.
278    
279    2009-04-03  Ingo Feinerer  <feinerer@logic.at>
280    
281            * R/weight.R: Remove weightLogical since it does not return a
282            dgCMatrix.
283    
284            * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
285            or TermDocumentMatrix instead.
286    
287    2009-03-28  Ingo Feinerer  <feinerer@logic.at>
288    
289            * inst/doc/extensions.Rnw: Finished vignette.
290    
291    2009-03-27  Ingo Feinerer  <feinerer@logic.at>
292    
293            * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
294            DocumentTermMatrix representations.
295    
296    2009-03-23  Ingo Feinerer  <feinerer@logic.at>
297    
298            * R/reader.R (readXML): New reader for arbitrary XML files.
299    
300  2009-03-22  Ingo Feinerer  <feinerer@logic.at>  2009-03-22  Ingo Feinerer  <feinerer@logic.at>
301    
302          * R/source.R (CSVSource): Defunct (use DataframeSource instead).          * R/source.R (CSVSource): Defunct (use DataframeSource instead).
# Line 6  Line 305 
305    
306  2009-03-21  Ingo Feinerer  <feinerer@logic.at>  2009-03-21  Ingo Feinerer  <feinerer@logic.at>
307    
308          * R/reader.R (readCustom): Experimental reader which can be          * R/reader.R (readTabular): Experimental reader for tabular data
309          customized via user-defined mappings.          structures which can be customized via user-defined mappings.
310    
311          * R/reader.R: Always use UTC time zone.          * R/reader.R: Always use UTC time zone.
312    

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