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revision 911, Sun Mar 22 17:55:16 2009 UTC revision 1075, Wed Jun 2 17:52:04 2010 UTC
# Line 1  Line 1 
1    2010-06-02  Ingo Feinerer  <feinerer@logic.at>
2    
3            * R/plot.R (Zipf_plot, Heaps_plot): Plotting functions for Zipf's
4            and Heaps' law.
5    
6    2010-05-18  Ingo Feinerer  <feinerer@logic.at>
7    
8            * R/corpus.R (Corpus, PCorpus): Use element names as IDs if
9            provided by a source.
10    
11    2010-04-09  Ingo Feinerer  <feinerer@logic.at>
12    
13            * R/source.R (.Source): Provide document names.
14    
15    2010-04-07  Ingo Feinerer  <feinerer@logic.at>
16    
17            * R/meta.R (`content_or_meta`): Utility function.
18    
19    2010-03-19  Ingo Feinerer  <feinerer@logic.at>
20    
21            * R/reader.R (readReut21578XML, readReut21578XMLasPlain): Extract
22            TOPICS, LEWISSPLIT, CGISPLIT, and OLDID meta tags.
23    
24    2010-03-03  Ingo Feinerer  <feinerer@logic.at>
25    
26            * R/weight.R (weightTfIdf): Added normalization option.
27    
28            * man/tm_tag_score.Rd: Add General Inquirer example for sentiment
29            analysis.
30    
31    2010-02-25  Ingo Feinerer  <feinerer@logic.at>
32    
33            * R/score.R (tm_tag_score): Compute a score from the number of
34            tags matching in a document.
35    
36    2010-02-18  Ingo Feinerer  <feinerer@logic.at>
37    
38            * R/complete.R (stemCompletion): New completion heuristics.
39    
40    2010-02-17  Ingo Feinerer  <feinerer@logic.at>
41    
42            * R/plot.R (plot.TermDocumentMatrix): Memory improvements.
43    
44    2010-02-06  Ingo Feinerer  <feinerer@logic.at>
45    
46            * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
47            setOldClass(c(..., "list")) works.
48    
49    2010-01-22  Ingo Feinerer  <feinerer@logic.at>
50    
51            * R/transform.R (stemDocument.character): In case input is a
52            simple character just delegate to the default Snowball stemmer.
53    
54    2010-01-15  Ingo Feinerer  <feinerer@logic.at>
55    
56            * R/reader.R (readReut21578XML, readRCV1): Extract more meta
57            data.
58    
59    2010-01-12  Ingo Feinerer  <feinerer@logic.at>
60    
61            * R/doc.R (`Content<-`): Be careful with names attribute.
62    
63    2010-01-07  Stefan Theussl  <stefan.theussl@wu.ac.at>
64    
65            * R/source.R (DirSource): Improved implementation especially when
66            handling many (> 1M) files.
67    
68    2009-12-22  Ingo Feinerer  <feinerer@logic.at>
69    
70            * R/source.R (getElem.URISource): Use encoding argument.
71    
72    2009-12-11  Ingo Feinerer  <feinerer@logic.at>
73    
74            * R/doc.R (setOldClass): Register S3 document classes to be
75            recognized by S4 methods.
76    
77    2009-11-25  Ingo Feinerer  <feinerer@logic.at>
78    
79            * R/matrix.R (termFreq): Add option to remove punctuation
80            characters.
81    
82    2009-11-19  Ingo Feinerer  <feinerer@logic.at>
83    
84            * R/matrix.R (c.TermDocumentMatrix): Added combine method for
85            merging multiple term-document matrices.
86    
87    2009-11-17  Ingo Feinerer  <feinerer@logic.at>
88    
89            * R/corpus.R (setOldClass): Register S3 corpus classes to be
90            recognized by S4 methods.
91    
92            * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
93            that CRAN Mac OS X builds do not fail any longer.
94    
95    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
96    
97            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
98            of RWeka:AlphabeticTokenizer() as default.
99    
100    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
101    
102            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
103            caused words at the beginning or the end of a line not to be removed. Do
104            not delete whitespace anymore.
105    
106    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
107    
108            * R/source.R (DirSource): Default to working directory if no path
109            is specified.
110    
111    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
112    
113            * R/source.R (DirSource): Stop on empty directories.
114    
115    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
116    
117            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
118            named documents.
119    
120    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
121    
122            * R/transform.R (removeWords): Improve regular expressions.
123    
124    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
125    
126            * R/meta.R (DublinCore): Allow lower case tags.
127    
128    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
129    
130            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
131            instead of x$children.
132    
133    2009-09-15  Ingo Feinerer  <feinerer@logic.at>
134    
135            * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
136    
137    2009-09-06  Ingo Feinerer  <feinerer@logic.at>
138    
139            * R/: Use S3 instead of S4 class system.
140    
141    2009-08-11  Ingo Feinerer  <feinerer@logic.at>
142    
143            * R/reader.R (readMail): Moved to tm.plugin.mail package.
144    
145    2009-07-04  Ingo Feinerer  <feinerer@logic.at>
146    
147            * R/reader.R (readNewsgroup): Rename to readMail as newsgroup
148            postings are basically e-mails with some extra headers.
149    
150    2009-07-03  Ingo Feinerer  <feinerer@logic.at>
151    
152            * R/transform.R: Move convertMboxEml, removeCitation,
153            removeMultipart, and removeSignature to the tm.plugin.mail package
154            since they are mainly utility functions (for handling e-mails) and
155            not very framework specific.
156    
157    2009-06-28  Ingo Feinerer  <feinerer@logic.at>
158    
159            * man/: Fix documentation.
160    
161    2009-06-26  Ingo Feinerer  <feinerer@logic.at>
162    
163            * R/reader.R (readReut21578XMLasPlain): New reader which returns a
164            plain text document instead of an XML document for texts of the
165            Reuters-21578 dataset.
166    
167            * R/sparse.R: Removed since the slam package is now available on
168            CRAN.
169    
170            * DESCRIPTION (Depends): Add slam package.
171    
172    2009-06-17  Ingo Feinerer  <feinerer@logic.at>
173    
174            * R/transform.R (stemDoc): Fix character(0) handling.
175    
176    2009-06-12  Ingo Feinerer  <feinerer@logic.at>
177    
178            * R/doc.R (show): Pretty print.
179    
180    2009-05-27  Ingo Feinerer  <feinerer@logic.at>
181    
182            * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
183            gracefully.
184    
185    2009-05-13  Ingo Feinerer  <feinerer@logic.at>
186    
187            * R/corpus.R: Make corpus virtual. Implement corpus with standard
188            and permanent storage semantics.
189    
190            * DESCRIPTION: New major release. A *lot* of improvements.
191    
192    2009-05-04   Ingo Feinerer <feinerer@logic.at>
193    
194            * NAMESPACE: Export some simple_triplet_matrix functions.
195    
196    2009-04-28   Ingo Feinerer <feinerer@logic.at>
197    
198            * R/weight.R: Adapt tf-idf to new matrix format.
199    
200    2009-04-27  Ingo Feinerer  <feinerer@logic.at>
201    
202            * R/matrix.R: Create two distinct classes for term-document and
203            document-term matrices.
204    
205    2009-04-26  Ingo Feinerer  <feinerer@logic.at>
206    
207            * R/termdocmatrix.R: No longer use Matrix package. This reduces
208            package start-up time significantly.
209    
210    2009-04-11  Ingo Feinerer  <feinerer@logic.at>
211    
212            * inst/doc/tm.Rnw: Fix code/documentation mismatch.
213    
214    2009-04-04  Ingo Feinerer  <feinerer@logic.at>
215    
216            * R/transform.R (tmReduce): Combine multiple maps into one
217            transformation.
218    
219    2009-04-03  Ingo Feinerer  <feinerer@logic.at>
220    
221            * R/weight.R: Remove weightLogical since it does not return a
222            dgCMatrix.
223    
224            * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
225            or TermDocumentMatrix instead.
226    
227    2009-03-28  Ingo Feinerer  <feinerer@logic.at>
228    
229            * inst/doc/extensions.Rnw: Finished vignette.
230    
231    2009-03-27  Ingo Feinerer  <feinerer@logic.at>
232    
233            * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
234            DocumentTermMatrix representations.
235    
236    2009-03-23  Ingo Feinerer  <feinerer@logic.at>
237    
238            * R/reader.R (readXML): New reader for arbitrary XML files.
239    
240  2009-03-22  Ingo Feinerer  <feinerer@logic.at>  2009-03-22  Ingo Feinerer  <feinerer@logic.at>
241    
242          * R/source.R (CSVSource): Defunct (use DataframeSource instead).          * R/source.R (CSVSource): Defunct (use DataframeSource instead).
# Line 6  Line 245 
245    
246  2009-03-21  Ingo Feinerer  <feinerer@logic.at>  2009-03-21  Ingo Feinerer  <feinerer@logic.at>
247    
248          * R/reader.R (readCustom): Experimental reader which can be          * R/reader.R (readTabular): Experimental reader for tabular data
249          customized via user-defined mappings.          structures which can be customized via user-defined mappings.
250    
251          * R/reader.R: Always use UTC time zone.          * R/reader.R: Always use UTC time zone.
252    

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