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revision 911, Sun Mar 22 17:55:16 2009 UTC revision 1062, Wed Apr 7 17:25:20 2010 UTC
# Line 1  Line 1 
1    2010-04-07  Ingo Feinerer  <feinerer@logic.at>
2    
3            * R/meta.R (`content_or_meta`): Utility function.
4    
5    2010-03-19  Ingo Feinerer  <feinerer@logic.at>
6    
7            * R/reader.R (readReut21578XML, readReut21578XMLasPlain): Extract
8            TOPICS, LEWISSPLIT, CGISPLIT, and OLDID meta tags.
9    
10    2010-03-03  Ingo Feinerer  <feinerer@logic.at>
11    
12            * R/weight.R (weightTfIdf): Added normalization option.
13    
14            * man/tm_tag_score.Rd: Add General Inquirer example for sentiment
15            analysis.
16    
17    2010-02-25  Ingo Feinerer  <feinerer@logic.at>
18    
19            * R/score.R (tm_tag_score): Compute a score from the number of
20            tags matching in a document.
21    
22    2010-02-18  Ingo Feinerer  <feinerer@logic.at>
23    
24            * R/complete.R (stemCompletion): New completion heuristics.
25    
26    2010-02-17  Ingo Feinerer  <feinerer@logic.at>
27    
28            * R/plot.R (plot.TermDocumentMatrix): Memory improvements.
29    
30    2010-02-06  Ingo Feinerer  <feinerer@logic.at>
31    
32            * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
33            setOldClass(c(..., "list")) works.
34    
35    2010-01-22  Ingo Feinerer  <feinerer@logic.at>
36    
37            * R/transform.R (stemDocument.character): In case input is a
38            simple character just delegate to the default Snowball stemmer.
39    
40    2010-01-15  Ingo Feinerer  <feinerer@logic.at>
41    
42            * R/reader.R (readReut21578XML, readRCV1): Extract more meta
43            data.
44    
45    2010-01-12  Ingo Feinerer  <feinerer@logic.at>
46    
47            * R/doc.R (`Content<-`): Be careful with names attribute.
48    
49    2010-01-07  Stefan Theussl  <stefan.theussl@wu.ac.at>
50    
51            * R/source.R (DirSource): Improved implementation especially when
52            handling many (> 1M) files.
53    
54    2009-12-22  Ingo Feinerer  <feinerer@logic.at>
55    
56            * R/source.R (getElem.URISource): Use encoding argument.
57    
58    2009-12-11  Ingo Feinerer  <feinerer@logic.at>
59    
60            * R/doc.R (setOldClass): Register S3 document classes to be
61            recognized by S4 methods.
62    
63    2009-11-25  Ingo Feinerer  <feinerer@logic.at>
64    
65            * R/matrix.R (termFreq): Add option to remove punctuation
66            characters.
67    
68    2009-11-19  Ingo Feinerer  <feinerer@logic.at>
69    
70            * R/matrix.R (c.TermDocumentMatrix): Added combine method for
71            merging multiple term-document matrices.
72    
73    2009-11-17  Ingo Feinerer  <feinerer@logic.at>
74    
75            * R/corpus.R (setOldClass): Register S3 corpus classes to be
76            recognized by S4 methods.
77    
78            * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
79            that CRAN Mac OS X builds do not fail any longer.
80    
81    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
82    
83            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
84            of RWeka:AlphabeticTokenizer() as default.
85    
86    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
87    
88            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
89            caused words at the beginning or the end of a line not to be removed. Do
90            not delete whitespace anymore.
91    
92    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
93    
94            * R/source.R (DirSource): Default to working directory if no path
95            is specified.
96    
97    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
98    
99            * R/source.R (DirSource): Stop on empty directories.
100    
101    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
102    
103            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
104            named documents.
105    
106    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
107    
108            * R/transform.R (removeWords): Improve regular expressions.
109    
110    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
111    
112            * R/meta.R (DublinCore): Allow lower case tags.
113    
114    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
115    
116            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
117            instead of x$children.
118    
119    2009-09-15  Ingo Feinerer  <feinerer@logic.at>
120    
121            * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
122    
123    2009-09-06  Ingo Feinerer  <feinerer@logic.at>
124    
125            * R/: Use S3 instead of S4 class system.
126    
127    2009-08-11  Ingo Feinerer  <feinerer@logic.at>
128    
129            * R/reader.R (readMail): Moved to tm.plugin.mail package.
130    
131    2009-07-04  Ingo Feinerer  <feinerer@logic.at>
132    
133            * R/reader.R (readNewsgroup): Rename to readMail as newsgroup
134            postings are basically e-mails with some extra headers.
135    
136    2009-07-03  Ingo Feinerer  <feinerer@logic.at>
137    
138            * R/transform.R: Move convertMboxEml, removeCitation,
139            removeMultipart, and removeSignature to the tm.plugin.mail package
140            since they are mainly utility functions (for handling e-mails) and
141            not very framework specific.
142    
143    2009-06-28  Ingo Feinerer  <feinerer@logic.at>
144    
145            * man/: Fix documentation.
146    
147    2009-06-26  Ingo Feinerer  <feinerer@logic.at>
148    
149            * R/reader.R (readReut21578XMLasPlain): New reader which returns a
150            plain text document instead of an XML document for texts of the
151            Reuters-21578 dataset.
152    
153            * R/sparse.R: Removed since the slam package is now available on
154            CRAN.
155    
156            * DESCRIPTION (Depends): Add slam package.
157    
158    2009-06-17  Ingo Feinerer  <feinerer@logic.at>
159    
160            * R/transform.R (stemDoc): Fix character(0) handling.
161    
162    2009-06-12  Ingo Feinerer  <feinerer@logic.at>
163    
164            * R/doc.R (show): Pretty print.
165    
166    2009-05-27  Ingo Feinerer  <feinerer@logic.at>
167    
168            * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
169            gracefully.
170    
171    2009-05-13  Ingo Feinerer  <feinerer@logic.at>
172    
173            * R/corpus.R: Make corpus virtual. Implement corpus with standard
174            and permanent storage semantics.
175    
176            * DESCRIPTION: New major release. A *lot* of improvements.
177    
178    2009-05-04   Ingo Feinerer <feinerer@logic.at>
179    
180            * NAMESPACE: Export some simple_triplet_matrix functions.
181    
182    2009-04-28   Ingo Feinerer <feinerer@logic.at>
183    
184            * R/weight.R: Adapt tf-idf to new matrix format.
185    
186    2009-04-27  Ingo Feinerer  <feinerer@logic.at>
187    
188            * R/matrix.R: Create two distinct classes for term-document and
189            document-term matrices.
190    
191    2009-04-26  Ingo Feinerer  <feinerer@logic.at>
192    
193            * R/termdocmatrix.R: No longer use Matrix package. This reduces
194            package start-up time significantly.
195    
196    2009-04-11  Ingo Feinerer  <feinerer@logic.at>
197    
198            * inst/doc/tm.Rnw: Fix code/documentation mismatch.
199    
200    2009-04-04  Ingo Feinerer  <feinerer@logic.at>
201    
202            * R/transform.R (tmReduce): Combine multiple maps into one
203            transformation.
204    
205    2009-04-03  Ingo Feinerer  <feinerer@logic.at>
206    
207            * R/weight.R: Remove weightLogical since it does not return a
208            dgCMatrix.
209    
210            * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
211            or TermDocumentMatrix instead.
212    
213    2009-03-28  Ingo Feinerer  <feinerer@logic.at>
214    
215            * inst/doc/extensions.Rnw: Finished vignette.
216    
217    2009-03-27  Ingo Feinerer  <feinerer@logic.at>
218    
219            * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
220            DocumentTermMatrix representations.
221    
222    2009-03-23  Ingo Feinerer  <feinerer@logic.at>
223    
224            * R/reader.R (readXML): New reader for arbitrary XML files.
225    
226  2009-03-22  Ingo Feinerer  <feinerer@logic.at>  2009-03-22  Ingo Feinerer  <feinerer@logic.at>
227    
228          * R/source.R (CSVSource): Defunct (use DataframeSource instead).          * R/source.R (CSVSource): Defunct (use DataframeSource instead).
# Line 6  Line 231 
231    
232  2009-03-21  Ingo Feinerer  <feinerer@logic.at>  2009-03-21  Ingo Feinerer  <feinerer@logic.at>
233    
234          * R/reader.R (readCustom): Experimental reader which can be          * R/reader.R (readTabular): Experimental reader for tabular data
235          customized via user-defined mappings.          structures which can be customized via user-defined mappings.
236    
237          * R/reader.R: Always use UTC time zone.          * R/reader.R: Always use UTC time zone.
238    

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