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revision 911, Sun Mar 22 17:55:16 2009 UTC revision 1108, Fri Oct 22 18:32:47 2010 UTC
# Line 1  Line 1 
1    2010-10-22  Ingo Feinerer  <feinerer@logic.at>
2    
3            * R/matrix.R (.TermDocumentMatrix): Make Weighting an attribute
4            (instead of a list element).
5    
6    2010-10-16  Ingo Feinerer  <feinerer@logic.at>
7    
8            * R/corpus.R (`[[.VCorpus`, `[[.PCorpus'): Access individual
9            documents by names (fallback to IDs if names are not set).
10    
11    2010-08-25  Ingo Feinerer  <feinerer@logic.at>
12    
13            * R/corpus.R (c.Corpus): When concatenating corpora, the argument
14            \code{recursive} now determines whether existing corpus meta data
15            is used.
16    
17    2010-08-06  Ingo Feinerer  <feinerer@logic.at>
18    
19            * R/transform.R: Removed convert_UTF_8(). Use enc2utf8() instead.
20    
21    2010-06-17  Ingo Feinerer  <feinerer@logic.at>
22    
23            * R/matrix.R (TermDocumentMatrix): If a dictionary is given do not
24            remove terms not occurring in the corpus anymore.
25    
26    2010-06-02  Ingo Feinerer  <feinerer@logic.at>
27    
28            * R/plot.R (Zipf_plot, Heaps_plot): Plotting functions for Zipf's
29            and Heaps' law.
30    
31    2010-05-18  Ingo Feinerer  <feinerer@logic.at>
32    
33            * R/corpus.R (Corpus, PCorpus): Use element names as IDs if
34            provided by a source.
35    
36    2010-04-09  Ingo Feinerer  <feinerer@logic.at>
37    
38            * R/source.R (.Source): Provide document names.
39    
40    2010-04-07  Ingo Feinerer  <feinerer@logic.at>
41    
42            * R/meta.R (`content_or_meta`): Utility function.
43    
44    2010-03-19  Ingo Feinerer  <feinerer@logic.at>
45    
46            * R/reader.R (readReut21578XML, readReut21578XMLasPlain): Extract
47            TOPICS, LEWISSPLIT, CGISPLIT, and OLDID meta tags.
48    
49    2010-03-03  Ingo Feinerer  <feinerer@logic.at>
50    
51            * R/weight.R (weightTfIdf): Added normalization option.
52    
53            * man/tm_tag_score.Rd: Add General Inquirer example for sentiment
54            analysis.
55    
56    2010-02-25  Ingo Feinerer  <feinerer@logic.at>
57    
58            * R/score.R (tm_tag_score): Compute a score from the number of
59            tags matching in a document.
60    
61    2010-02-18  Ingo Feinerer  <feinerer@logic.at>
62    
63            * R/complete.R (stemCompletion): New completion heuristics.
64    
65    2010-02-17  Ingo Feinerer  <feinerer@logic.at>
66    
67            * R/plot.R (plot.TermDocumentMatrix): Memory improvements.
68    
69    2010-02-06  Ingo Feinerer  <feinerer@logic.at>
70    
71            * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
72            setOldClass(c(..., "list")) works.
73    
74    2010-01-22  Ingo Feinerer  <feinerer@logic.at>
75    
76            * R/transform.R (stemDocument.character): In case input is a
77            simple character just delegate to the default Snowball stemmer.
78    
79    2010-01-15  Ingo Feinerer  <feinerer@logic.at>
80    
81            * R/reader.R (readReut21578XML, readRCV1): Extract more meta
82            data.
83    
84    2010-01-12  Ingo Feinerer  <feinerer@logic.at>
85    
86            * R/doc.R (`Content<-`): Be careful with names attribute.
87    
88    2010-01-07  Stefan Theussl  <stefan.theussl@wu.ac.at>
89    
90            * R/source.R (DirSource): Improved implementation especially when
91            handling many (> 1M) files.
92    
93    2009-12-22  Ingo Feinerer  <feinerer@logic.at>
94    
95            * R/source.R (getElem.URISource): Use encoding argument.
96    
97    2009-12-11  Ingo Feinerer  <feinerer@logic.at>
98    
99            * R/doc.R (setOldClass): Register S3 document classes to be
100            recognized by S4 methods.
101    
102    2009-11-25  Ingo Feinerer  <feinerer@logic.at>
103    
104            * R/matrix.R (termFreq): Add option to remove punctuation
105            characters.
106    
107    2009-11-19  Ingo Feinerer  <feinerer@logic.at>
108    
109            * R/matrix.R (c.TermDocumentMatrix): Added combine method for
110            merging multiple term-document matrices.
111    
112    2009-11-17  Ingo Feinerer  <feinerer@logic.at>
113    
114            * R/corpus.R (setOldClass): Register S3 corpus classes to be
115            recognized by S4 methods.
116    
117            * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
118            that CRAN Mac OS X builds do not fail any longer.
119    
120    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
121    
122            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
123            of RWeka:AlphabeticTokenizer() as default.
124    
125    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
126    
127            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
128            caused words at the beginning or the end of a line not to be removed. Do
129            not delete whitespace anymore.
130    
131    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
132    
133            * R/source.R (DirSource): Default to working directory if no path
134            is specified.
135    
136    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
137    
138            * R/source.R (DirSource): Stop on empty directories.
139    
140    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
141    
142            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
143            named documents.
144    
145    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
146    
147            * R/transform.R (removeWords): Improve regular expressions.
148    
149    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
150    
151            * R/meta.R (DublinCore): Allow lower case tags.
152    
153    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
154    
155            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
156            instead of x$children.
157    
158    2009-09-15  Ingo Feinerer  <feinerer@logic.at>
159    
160            * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
161    
162    2009-09-06  Ingo Feinerer  <feinerer@logic.at>
163    
164            * R/: Use S3 instead of S4 class system.
165    
166    2009-08-11  Ingo Feinerer  <feinerer@logic.at>
167    
168            * R/reader.R (readMail): Moved to tm.plugin.mail package.
169    
170    2009-07-04  Ingo Feinerer  <feinerer@logic.at>
171    
172            * R/reader.R (readNewsgroup): Rename to readMail as newsgroup
173            postings are basically e-mails with some extra headers.
174    
175    2009-07-03  Ingo Feinerer  <feinerer@logic.at>
176    
177            * R/transform.R: Move convertMboxEml, removeCitation,
178            removeMultipart, and removeSignature to the tm.plugin.mail package
179            since they are mainly utility functions (for handling e-mails) and
180            not very framework specific.
181    
182    2009-06-28  Ingo Feinerer  <feinerer@logic.at>
183    
184            * man/: Fix documentation.
185    
186    2009-06-26  Ingo Feinerer  <feinerer@logic.at>
187    
188            * R/reader.R (readReut21578XMLasPlain): New reader which returns a
189            plain text document instead of an XML document for texts of the
190            Reuters-21578 dataset.
191    
192            * R/sparse.R: Removed since the slam package is now available on
193            CRAN.
194    
195            * DESCRIPTION (Depends): Add slam package.
196    
197    2009-06-17  Ingo Feinerer  <feinerer@logic.at>
198    
199            * R/transform.R (stemDoc): Fix character(0) handling.
200    
201    2009-06-12  Ingo Feinerer  <feinerer@logic.at>
202    
203            * R/doc.R (show): Pretty print.
204    
205    2009-05-27  Ingo Feinerer  <feinerer@logic.at>
206    
207            * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
208            gracefully.
209    
210    2009-05-13  Ingo Feinerer  <feinerer@logic.at>
211    
212            * R/corpus.R: Make corpus virtual. Implement corpus with standard
213            and permanent storage semantics.
214    
215            * DESCRIPTION: New major release. A *lot* of improvements.
216    
217    2009-05-04   Ingo Feinerer <feinerer@logic.at>
218    
219            * NAMESPACE: Export some simple_triplet_matrix functions.
220    
221    2009-04-28   Ingo Feinerer <feinerer@logic.at>
222    
223            * R/weight.R: Adapt tf-idf to new matrix format.
224    
225    2009-04-27  Ingo Feinerer  <feinerer@logic.at>
226    
227            * R/matrix.R: Create two distinct classes for term-document and
228            document-term matrices.
229    
230    2009-04-26  Ingo Feinerer  <feinerer@logic.at>
231    
232            * R/termdocmatrix.R: No longer use Matrix package. This reduces
233            package start-up time significantly.
234    
235    2009-04-11  Ingo Feinerer  <feinerer@logic.at>
236    
237            * inst/doc/tm.Rnw: Fix code/documentation mismatch.
238    
239    2009-04-04  Ingo Feinerer  <feinerer@logic.at>
240    
241            * R/transform.R (tmReduce): Combine multiple maps into one
242            transformation.
243    
244    2009-04-03  Ingo Feinerer  <feinerer@logic.at>
245    
246            * R/weight.R: Remove weightLogical since it does not return a
247            dgCMatrix.
248    
249            * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
250            or TermDocumentMatrix instead.
251    
252    2009-03-28  Ingo Feinerer  <feinerer@logic.at>
253    
254            * inst/doc/extensions.Rnw: Finished vignette.
255    
256    2009-03-27  Ingo Feinerer  <feinerer@logic.at>
257    
258            * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
259            DocumentTermMatrix representations.
260    
261    2009-03-23  Ingo Feinerer  <feinerer@logic.at>
262    
263            * R/reader.R (readXML): New reader for arbitrary XML files.
264    
265  2009-03-22  Ingo Feinerer  <feinerer@logic.at>  2009-03-22  Ingo Feinerer  <feinerer@logic.at>
266    
267          * R/source.R (CSVSource): Defunct (use DataframeSource instead).          * R/source.R (CSVSource): Defunct (use DataframeSource instead).
# Line 6  Line 270 
270    
271  2009-03-21  Ingo Feinerer  <feinerer@logic.at>  2009-03-21  Ingo Feinerer  <feinerer@logic.at>
272    
273          * R/reader.R (readCustom): Experimental reader which can be          * R/reader.R (readTabular): Experimental reader for tabular data
274          customized via user-defined mappings.          structures which can be customized via user-defined mappings.
275    
276          * R/reader.R: Always use UTC time zone.          * R/reader.R: Always use UTC time zone.
277    

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