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revision 911, Sun Mar 22 17:55:16 2009 UTC revision 1102, Sat Oct 16 10:01:09 2010 UTC
# Line 1  Line 1 
1    2010-10-16  Ingo Feinerer  <feinerer@logic.at>
2    
3            * R/corpus.R (`[[.VCorpus`, `[[.PCorpus'): Access individual
4            documents by document ID.
5    
6    2010-08-25  Ingo Feinerer  <feinerer@logic.at>
7    
8            * R/corpus.R (c.Corpus): When concatenating corpora, the argument
9            \code{recursive} now determines whether existing corpus meta data
10            is used.
11    
12    2010-08-06  Ingo Feinerer  <feinerer@logic.at>
13    
14            * R/transform.R: Removed convert_UTF_8(). Use enc2utf8() instead.
15    
16    2010-06-17  Ingo Feinerer  <feinerer@logic.at>
17    
18            * R/matrix.R (TermDocumentMatrix): If a dictionary is given do not
19            remove terms not occurring in the corpus anymore.
20    
21    2010-06-02  Ingo Feinerer  <feinerer@logic.at>
22    
23            * R/plot.R (Zipf_plot, Heaps_plot): Plotting functions for Zipf's
24            and Heaps' law.
25    
26    2010-05-18  Ingo Feinerer  <feinerer@logic.at>
27    
28            * R/corpus.R (Corpus, PCorpus): Use element names as IDs if
29            provided by a source.
30    
31    2010-04-09  Ingo Feinerer  <feinerer@logic.at>
32    
33            * R/source.R (.Source): Provide document names.
34    
35    2010-04-07  Ingo Feinerer  <feinerer@logic.at>
36    
37            * R/meta.R (`content_or_meta`): Utility function.
38    
39    2010-03-19  Ingo Feinerer  <feinerer@logic.at>
40    
41            * R/reader.R (readReut21578XML, readReut21578XMLasPlain): Extract
42            TOPICS, LEWISSPLIT, CGISPLIT, and OLDID meta tags.
43    
44    2010-03-03  Ingo Feinerer  <feinerer@logic.at>
45    
46            * R/weight.R (weightTfIdf): Added normalization option.
47    
48            * man/tm_tag_score.Rd: Add General Inquirer example for sentiment
49            analysis.
50    
51    2010-02-25  Ingo Feinerer  <feinerer@logic.at>
52    
53            * R/score.R (tm_tag_score): Compute a score from the number of
54            tags matching in a document.
55    
56    2010-02-18  Ingo Feinerer  <feinerer@logic.at>
57    
58            * R/complete.R (stemCompletion): New completion heuristics.
59    
60    2010-02-17  Ingo Feinerer  <feinerer@logic.at>
61    
62            * R/plot.R (plot.TermDocumentMatrix): Memory improvements.
63    
64    2010-02-06  Ingo Feinerer  <feinerer@logic.at>
65    
66            * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
67            setOldClass(c(..., "list")) works.
68    
69    2010-01-22  Ingo Feinerer  <feinerer@logic.at>
70    
71            * R/transform.R (stemDocument.character): In case input is a
72            simple character just delegate to the default Snowball stemmer.
73    
74    2010-01-15  Ingo Feinerer  <feinerer@logic.at>
75    
76            * R/reader.R (readReut21578XML, readRCV1): Extract more meta
77            data.
78    
79    2010-01-12  Ingo Feinerer  <feinerer@logic.at>
80    
81            * R/doc.R (`Content<-`): Be careful with names attribute.
82    
83    2010-01-07  Stefan Theussl  <stefan.theussl@wu.ac.at>
84    
85            * R/source.R (DirSource): Improved implementation especially when
86            handling many (> 1M) files.
87    
88    2009-12-22  Ingo Feinerer  <feinerer@logic.at>
89    
90            * R/source.R (getElem.URISource): Use encoding argument.
91    
92    2009-12-11  Ingo Feinerer  <feinerer@logic.at>
93    
94            * R/doc.R (setOldClass): Register S3 document classes to be
95            recognized by S4 methods.
96    
97    2009-11-25  Ingo Feinerer  <feinerer@logic.at>
98    
99            * R/matrix.R (termFreq): Add option to remove punctuation
100            characters.
101    
102    2009-11-19  Ingo Feinerer  <feinerer@logic.at>
103    
104            * R/matrix.R (c.TermDocumentMatrix): Added combine method for
105            merging multiple term-document matrices.
106    
107    2009-11-17  Ingo Feinerer  <feinerer@logic.at>
108    
109            * R/corpus.R (setOldClass): Register S3 corpus classes to be
110            recognized by S4 methods.
111    
112            * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
113            that CRAN Mac OS X builds do not fail any longer.
114    
115    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
116    
117            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
118            of RWeka:AlphabeticTokenizer() as default.
119    
120    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
121    
122            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
123            caused words at the beginning or the end of a line not to be removed. Do
124            not delete whitespace anymore.
125    
126    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
127    
128            * R/source.R (DirSource): Default to working directory if no path
129            is specified.
130    
131    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
132    
133            * R/source.R (DirSource): Stop on empty directories.
134    
135    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
136    
137            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
138            named documents.
139    
140    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
141    
142            * R/transform.R (removeWords): Improve regular expressions.
143    
144    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
145    
146            * R/meta.R (DublinCore): Allow lower case tags.
147    
148    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
149    
150            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
151            instead of x$children.
152    
153    2009-09-15  Ingo Feinerer  <feinerer@logic.at>
154    
155            * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
156    
157    2009-09-06  Ingo Feinerer  <feinerer@logic.at>
158    
159            * R/: Use S3 instead of S4 class system.
160    
161    2009-08-11  Ingo Feinerer  <feinerer@logic.at>
162    
163            * R/reader.R (readMail): Moved to tm.plugin.mail package.
164    
165    2009-07-04  Ingo Feinerer  <feinerer@logic.at>
166    
167            * R/reader.R (readNewsgroup): Rename to readMail as newsgroup
168            postings are basically e-mails with some extra headers.
169    
170    2009-07-03  Ingo Feinerer  <feinerer@logic.at>
171    
172            * R/transform.R: Move convertMboxEml, removeCitation,
173            removeMultipart, and removeSignature to the tm.plugin.mail package
174            since they are mainly utility functions (for handling e-mails) and
175            not very framework specific.
176    
177    2009-06-28  Ingo Feinerer  <feinerer@logic.at>
178    
179            * man/: Fix documentation.
180    
181    2009-06-26  Ingo Feinerer  <feinerer@logic.at>
182    
183            * R/reader.R (readReut21578XMLasPlain): New reader which returns a
184            plain text document instead of an XML document for texts of the
185            Reuters-21578 dataset.
186    
187            * R/sparse.R: Removed since the slam package is now available on
188            CRAN.
189    
190            * DESCRIPTION (Depends): Add slam package.
191    
192    2009-06-17  Ingo Feinerer  <feinerer@logic.at>
193    
194            * R/transform.R (stemDoc): Fix character(0) handling.
195    
196    2009-06-12  Ingo Feinerer  <feinerer@logic.at>
197    
198            * R/doc.R (show): Pretty print.
199    
200    2009-05-27  Ingo Feinerer  <feinerer@logic.at>
201    
202            * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
203            gracefully.
204    
205    2009-05-13  Ingo Feinerer  <feinerer@logic.at>
206    
207            * R/corpus.R: Make corpus virtual. Implement corpus with standard
208            and permanent storage semantics.
209    
210            * DESCRIPTION: New major release. A *lot* of improvements.
211    
212    2009-05-04   Ingo Feinerer <feinerer@logic.at>
213    
214            * NAMESPACE: Export some simple_triplet_matrix functions.
215    
216    2009-04-28   Ingo Feinerer <feinerer@logic.at>
217    
218            * R/weight.R: Adapt tf-idf to new matrix format.
219    
220    2009-04-27  Ingo Feinerer  <feinerer@logic.at>
221    
222            * R/matrix.R: Create two distinct classes for term-document and
223            document-term matrices.
224    
225    2009-04-26  Ingo Feinerer  <feinerer@logic.at>
226    
227            * R/termdocmatrix.R: No longer use Matrix package. This reduces
228            package start-up time significantly.
229    
230    2009-04-11  Ingo Feinerer  <feinerer@logic.at>
231    
232            * inst/doc/tm.Rnw: Fix code/documentation mismatch.
233    
234    2009-04-04  Ingo Feinerer  <feinerer@logic.at>
235    
236            * R/transform.R (tmReduce): Combine multiple maps into one
237            transformation.
238    
239    2009-04-03  Ingo Feinerer  <feinerer@logic.at>
240    
241            * R/weight.R: Remove weightLogical since it does not return a
242            dgCMatrix.
243    
244            * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
245            or TermDocumentMatrix instead.
246    
247    2009-03-28  Ingo Feinerer  <feinerer@logic.at>
248    
249            * inst/doc/extensions.Rnw: Finished vignette.
250    
251    2009-03-27  Ingo Feinerer  <feinerer@logic.at>
252    
253            * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
254            DocumentTermMatrix representations.
255    
256    2009-03-23  Ingo Feinerer  <feinerer@logic.at>
257    
258            * R/reader.R (readXML): New reader for arbitrary XML files.
259    
260  2009-03-22  Ingo Feinerer  <feinerer@logic.at>  2009-03-22  Ingo Feinerer  <feinerer@logic.at>
261    
262          * R/source.R (CSVSource): Defunct (use DataframeSource instead).          * R/source.R (CSVSource): Defunct (use DataframeSource instead).
# Line 6  Line 265 
265    
266  2009-03-21  Ingo Feinerer  <feinerer@logic.at>  2009-03-21  Ingo Feinerer  <feinerer@logic.at>
267    
268          * R/reader.R (readCustom): Experimental reader which can be          * R/reader.R (readTabular): Experimental reader for tabular data
269          customized via user-defined mappings.          structures which can be customized via user-defined mappings.
270    
271          * R/reader.R: Always use UTC time zone.          * R/reader.R: Always use UTC time zone.
272    

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