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revision 911, Sun Mar 22 17:55:16 2009 UTC revision 1040, Sat Feb 6 10:33:03 2010 UTC
# Line 1  Line 1 
1    2010-02-06  Ingo Feinerer  <feinerer@logic.at>
2    
3            * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
4            setOldClass(c(..., "list")) works.
5    
6    2010-01-22  Ingo Feinerer  <feinerer@logic.at>
7    
8            * R/transform.R (stemDocument.character): In case input is a
9            simple character just delegate to the default Snowball stemmer.
10    
11    2010-01-15  Ingo Feinerer  <feinerer@logic.at>
12    
13            * R/reader.R (readReut21578XML, readRCV1): Extract more meta
14            data.
15    
16    2010-01-12  Ingo Feinerer  <feinerer@logic.at>
17    
18            * R/doc.R (`Content<-`): Be careful with names attribute.
19    
20    2010-01-07  Stefan Theussl  <stefan.theussl@wu.ac.at>
21    
22            * R/source.R (DirSource): Improved implementation especially when
23            handling many (>1M) files.
24    
25    2009-12-22  Ingo Feinerer  <feinerer@logic.at>
26    
27            * R/source.R (getElem.URISource): Use encoding argument.
28    
29    2009-12-11  Ingo Feinerer  <feinerer@logic.at>
30    
31            * R/doc.R (setOldClass): Register S3 document classes to be
32            recognized by S4 methods.
33    
34    2009-11-25  Ingo Feinerer  <feinerer@logic.at>
35    
36            * R/matrix.R (termFreq): Add option to remove punctuation
37            characters.
38    
39    2009-11-19  Ingo Feinerer  <feinerer@logic.at>
40    
41            * R/matrix.R (c.TermDocumentMatrix): Added combine method for
42            merging multiple term-document matrices.
43    
44    2009-11-17  Ingo Feinerer  <feinerer@logic.at>
45    
46            * R/corpus.R (setOldClass): Register S3 corpus classes to be
47            recognized by S4 methods.
48    
49            * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
50            that CRAN Mac OS X builds do not fail any longer.
51    
52    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
53    
54            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
55            of RWeka:AlphabeticTokenizer() as default.
56    
57    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
58    
59            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
60            caused words at the beginning or the end of a line not to be removed. Do
61            not delete whitespace anymore.
62    
63    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
64    
65            * R/source.R (DirSource): Default to working directory if no path
66            is specified.
67    
68    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
69    
70            * R/source.R (DirSource): Stop on empty directories.
71    
72    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
73    
74            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
75            named documents.
76    
77    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
78    
79            * R/transform.R (removeWords): Improve regular expressions.
80    
81    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
82    
83            * R/meta.R (DublinCore): Allow lower case tags.
84    
85    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
86    
87            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
88            instead of x$children.
89    
90    2009-09-15  Ingo Feinerer  <feinerer@logic.at>
91    
92            * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
93    
94    2009-09-06  Ingo Feinerer  <feinerer@logic.at>
95    
96            * R/: Use S3 instead of S4 class system.
97    
98    2009-08-11  Ingo Feinerer  <feinerer@logic.at>
99    
100            * R/reader.R (readMail): Moved to tm.plugin.mail package.
101    
102    2009-07-04  Ingo Feinerer  <feinerer@logic.at>
103    
104            * R/reader.R (readNewsgroup): Rename to readMail as newsgroup
105            postings are basically e-mails with some extra headers.
106    
107    2009-07-03  Ingo Feinerer  <feinerer@logic.at>
108    
109            * R/transform.R: Move convertMboxEml, removeCitation,
110            removeMultipart, and removeSignature to the tm.plugin.mail package
111            since they are mainly utility functions (for handling e-mails) and
112            not very framework specific.
113    
114    2009-06-28  Ingo Feinerer  <feinerer@logic.at>
115    
116            * man/: Fix documentation.
117    
118    2009-06-26  Ingo Feinerer  <feinerer@logic.at>
119    
120            * R/reader.R (readReut21578XMLasPlain): New reader which returns a
121            plain text document instead of an XML document for texts of the
122            Reuters-21578 dataset.
123    
124            * R/sparse.R: Removed since the slam package is now available on
125            CRAN.
126    
127            * DESCRIPTION (Depends): Add slam package.
128    
129    2009-06-17  Ingo Feinerer  <feinerer@logic.at>
130    
131            * R/transform.R (stemDoc): Fix character(0) handling.
132    
133    2009-06-12  Ingo Feinerer  <feinerer@logic.at>
134    
135            * R/doc.R (show): Pretty print.
136    
137    2009-05-27  Ingo Feinerer  <feinerer@logic.at>
138    
139            * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
140            gracefully.
141    
142    2009-05-13  Ingo Feinerer  <feinerer@logic.at>
143    
144            * R/corpus.R: Make corpus virtual. Implement corpus with standard
145            and permanent storage semantics.
146    
147            * DESCRIPTION: New major release. A *lot* of improvements.
148    
149    2009-05-04   Ingo Feinerer <feinerer@logic.at>
150    
151            * NAMESPACE: Export some simple_triplet_matrix functions.
152    
153    2009-04-28   Ingo Feinerer <feinerer@logic.at>
154    
155            * R/weight.R: Adapt tf-idf to new matrix format.
156    
157    2009-04-27  Ingo Feinerer  <feinerer@logic.at>
158    
159            * R/matrix.R: Create two distinct classes for term-document and
160            document-term matrices.
161    
162    2009-04-26  Ingo Feinerer  <feinerer@logic.at>
163    
164            * R/termdocmatrix.R: No longer use Matrix package. This reduces
165            package start-up time significantly.
166    
167    2009-04-11  Ingo Feinerer  <feinerer@logic.at>
168    
169            * inst/doc/tm.Rnw: Fix code/documentation mismatch.
170    
171    2009-04-04  Ingo Feinerer  <feinerer@logic.at>
172    
173            * R/transform.R (tmReduce): Combine multiple maps into one
174            transformation.
175    
176    2009-04-03  Ingo Feinerer  <feinerer@logic.at>
177    
178            * R/weight.R: Remove weightLogical since it does not return a
179            dgCMatrix.
180    
181            * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
182            or TermDocumentMatrix instead.
183    
184    2009-03-28  Ingo Feinerer  <feinerer@logic.at>
185    
186            * inst/doc/extensions.Rnw: Finished vignette.
187    
188    2009-03-27  Ingo Feinerer  <feinerer@logic.at>
189    
190            * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
191            DocumentTermMatrix representations.
192    
193    2009-03-23  Ingo Feinerer  <feinerer@logic.at>
194    
195            * R/reader.R (readXML): New reader for arbitrary XML files.
196    
197  2009-03-22  Ingo Feinerer  <feinerer@logic.at>  2009-03-22  Ingo Feinerer  <feinerer@logic.at>
198    
199          * R/source.R (CSVSource): Defunct (use DataframeSource instead).          * R/source.R (CSVSource): Defunct (use DataframeSource instead).
# Line 6  Line 202 
202    
203  2009-03-21  Ingo Feinerer  <feinerer@logic.at>  2009-03-21  Ingo Feinerer  <feinerer@logic.at>
204    
205          * R/reader.R (readCustom): Experimental reader which can be          * R/reader.R (readTabular): Experimental reader for tabular data
206          customized via user-defined mappings.          structures which can be customized via user-defined mappings.
207    
208          * R/reader.R: Always use UTC time zone.          * R/reader.R: Always use UTC time zone.
209    

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