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revision 911, Sun Mar 22 17:55:16 2009 UTC revision 1080, Thu Jun 17 13:47:05 2010 UTC
# Line 1  Line 1 
1    2010-06-17  Ingo Feinerer  <feinerer@logic.at>
2    
3            * R/matrix.R (TermDocumentMatrix): If a dictionary is given do not
4            remove terms not occurring in the corpus anymore.
5    
6    2010-06-02  Ingo Feinerer  <feinerer@logic.at>
7    
8            * R/plot.R (Zipf_plot, Heaps_plot): Plotting functions for Zipf's
9            and Heaps' law.
10    
11    2010-05-18  Ingo Feinerer  <feinerer@logic.at>
12    
13            * R/corpus.R (Corpus, PCorpus): Use element names as IDs if
14            provided by a source.
15    
16    2010-04-09  Ingo Feinerer  <feinerer@logic.at>
17    
18            * R/source.R (.Source): Provide document names.
19    
20    2010-04-07  Ingo Feinerer  <feinerer@logic.at>
21    
22            * R/meta.R (`content_or_meta`): Utility function.
23    
24    2010-03-19  Ingo Feinerer  <feinerer@logic.at>
25    
26            * R/reader.R (readReut21578XML, readReut21578XMLasPlain): Extract
27            TOPICS, LEWISSPLIT, CGISPLIT, and OLDID meta tags.
28    
29    2010-03-03  Ingo Feinerer  <feinerer@logic.at>
30    
31            * R/weight.R (weightTfIdf): Added normalization option.
32    
33            * man/tm_tag_score.Rd: Add General Inquirer example for sentiment
34            analysis.
35    
36    2010-02-25  Ingo Feinerer  <feinerer@logic.at>
37    
38            * R/score.R (tm_tag_score): Compute a score from the number of
39            tags matching in a document.
40    
41    2010-02-18  Ingo Feinerer  <feinerer@logic.at>
42    
43            * R/complete.R (stemCompletion): New completion heuristics.
44    
45    2010-02-17  Ingo Feinerer  <feinerer@logic.at>
46    
47            * R/plot.R (plot.TermDocumentMatrix): Memory improvements.
48    
49    2010-02-06  Ingo Feinerer  <feinerer@logic.at>
50    
51            * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
52            setOldClass(c(..., "list")) works.
53    
54    2010-01-22  Ingo Feinerer  <feinerer@logic.at>
55    
56            * R/transform.R (stemDocument.character): In case input is a
57            simple character just delegate to the default Snowball stemmer.
58    
59    2010-01-15  Ingo Feinerer  <feinerer@logic.at>
60    
61            * R/reader.R (readReut21578XML, readRCV1): Extract more meta
62            data.
63    
64    2010-01-12  Ingo Feinerer  <feinerer@logic.at>
65    
66            * R/doc.R (`Content<-`): Be careful with names attribute.
67    
68    2010-01-07  Stefan Theussl  <stefan.theussl@wu.ac.at>
69    
70            * R/source.R (DirSource): Improved implementation especially when
71            handling many (> 1M) files.
72    
73    2009-12-22  Ingo Feinerer  <feinerer@logic.at>
74    
75            * R/source.R (getElem.URISource): Use encoding argument.
76    
77    2009-12-11  Ingo Feinerer  <feinerer@logic.at>
78    
79            * R/doc.R (setOldClass): Register S3 document classes to be
80            recognized by S4 methods.
81    
82    2009-11-25  Ingo Feinerer  <feinerer@logic.at>
83    
84            * R/matrix.R (termFreq): Add option to remove punctuation
85            characters.
86    
87    2009-11-19  Ingo Feinerer  <feinerer@logic.at>
88    
89            * R/matrix.R (c.TermDocumentMatrix): Added combine method for
90            merging multiple term-document matrices.
91    
92    2009-11-17  Ingo Feinerer  <feinerer@logic.at>
93    
94            * R/corpus.R (setOldClass): Register S3 corpus classes to be
95            recognized by S4 methods.
96    
97            * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
98            that CRAN Mac OS X builds do not fail any longer.
99    
100    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
101    
102            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
103            of RWeka:AlphabeticTokenizer() as default.
104    
105    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
106    
107            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
108            caused words at the beginning or the end of a line not to be removed. Do
109            not delete whitespace anymore.
110    
111    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
112    
113            * R/source.R (DirSource): Default to working directory if no path
114            is specified.
115    
116    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
117    
118            * R/source.R (DirSource): Stop on empty directories.
119    
120    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
121    
122            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
123            named documents.
124    
125    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
126    
127            * R/transform.R (removeWords): Improve regular expressions.
128    
129    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
130    
131            * R/meta.R (DublinCore): Allow lower case tags.
132    
133    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
134    
135            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
136            instead of x$children.
137    
138    2009-09-15  Ingo Feinerer  <feinerer@logic.at>
139    
140            * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
141    
142    2009-09-06  Ingo Feinerer  <feinerer@logic.at>
143    
144            * R/: Use S3 instead of S4 class system.
145    
146    2009-08-11  Ingo Feinerer  <feinerer@logic.at>
147    
148            * R/reader.R (readMail): Moved to tm.plugin.mail package.
149    
150    2009-07-04  Ingo Feinerer  <feinerer@logic.at>
151    
152            * R/reader.R (readNewsgroup): Rename to readMail as newsgroup
153            postings are basically e-mails with some extra headers.
154    
155    2009-07-03  Ingo Feinerer  <feinerer@logic.at>
156    
157            * R/transform.R: Move convertMboxEml, removeCitation,
158            removeMultipart, and removeSignature to the tm.plugin.mail package
159            since they are mainly utility functions (for handling e-mails) and
160            not very framework specific.
161    
162    2009-06-28  Ingo Feinerer  <feinerer@logic.at>
163    
164            * man/: Fix documentation.
165    
166    2009-06-26  Ingo Feinerer  <feinerer@logic.at>
167    
168            * R/reader.R (readReut21578XMLasPlain): New reader which returns a
169            plain text document instead of an XML document for texts of the
170            Reuters-21578 dataset.
171    
172            * R/sparse.R: Removed since the slam package is now available on
173            CRAN.
174    
175            * DESCRIPTION (Depends): Add slam package.
176    
177    2009-06-17  Ingo Feinerer  <feinerer@logic.at>
178    
179            * R/transform.R (stemDoc): Fix character(0) handling.
180    
181    2009-06-12  Ingo Feinerer  <feinerer@logic.at>
182    
183            * R/doc.R (show): Pretty print.
184    
185    2009-05-27  Ingo Feinerer  <feinerer@logic.at>
186    
187            * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
188            gracefully.
189    
190    2009-05-13  Ingo Feinerer  <feinerer@logic.at>
191    
192            * R/corpus.R: Make corpus virtual. Implement corpus with standard
193            and permanent storage semantics.
194    
195            * DESCRIPTION: New major release. A *lot* of improvements.
196    
197    2009-05-04   Ingo Feinerer <feinerer@logic.at>
198    
199            * NAMESPACE: Export some simple_triplet_matrix functions.
200    
201    2009-04-28   Ingo Feinerer <feinerer@logic.at>
202    
203            * R/weight.R: Adapt tf-idf to new matrix format.
204    
205    2009-04-27  Ingo Feinerer  <feinerer@logic.at>
206    
207            * R/matrix.R: Create two distinct classes for term-document and
208            document-term matrices.
209    
210    2009-04-26  Ingo Feinerer  <feinerer@logic.at>
211    
212            * R/termdocmatrix.R: No longer use Matrix package. This reduces
213            package start-up time significantly.
214    
215    2009-04-11  Ingo Feinerer  <feinerer@logic.at>
216    
217            * inst/doc/tm.Rnw: Fix code/documentation mismatch.
218    
219    2009-04-04  Ingo Feinerer  <feinerer@logic.at>
220    
221            * R/transform.R (tmReduce): Combine multiple maps into one
222            transformation.
223    
224    2009-04-03  Ingo Feinerer  <feinerer@logic.at>
225    
226            * R/weight.R: Remove weightLogical since it does not return a
227            dgCMatrix.
228    
229            * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
230            or TermDocumentMatrix instead.
231    
232    2009-03-28  Ingo Feinerer  <feinerer@logic.at>
233    
234            * inst/doc/extensions.Rnw: Finished vignette.
235    
236    2009-03-27  Ingo Feinerer  <feinerer@logic.at>
237    
238            * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
239            DocumentTermMatrix representations.
240    
241    2009-03-23  Ingo Feinerer  <feinerer@logic.at>
242    
243            * R/reader.R (readXML): New reader for arbitrary XML files.
244    
245  2009-03-22  Ingo Feinerer  <feinerer@logic.at>  2009-03-22  Ingo Feinerer  <feinerer@logic.at>
246    
247          * R/source.R (CSVSource): Defunct (use DataframeSource instead).          * R/source.R (CSVSource): Defunct (use DataframeSource instead).
# Line 6  Line 250 
250    
251  2009-03-21  Ingo Feinerer  <feinerer@logic.at>  2009-03-21  Ingo Feinerer  <feinerer@logic.at>
252    
253          * R/reader.R (readCustom): Experimental reader which can be          * R/reader.R (readTabular): Experimental reader for tabular data
254          customized via user-defined mappings.          structures which can be customized via user-defined mappings.
255    
256          * R/reader.R: Always use UTC time zone.          * R/reader.R: Always use UTC time zone.
257    

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