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revision 911, Sun Mar 22 17:55:16 2009 UTC revision 1039, Fri Jan 22 13:01:33 2010 UTC
# Line 1  Line 1 
1    2010-01-22  Ingo Feinerer  <feinerer@logic.at>
2    
3            * R/transform.R (stemDocument.character): In case input is a
4            simple character just delegate to the default Snowball stemmer.
5    
6    2010-01-15  Ingo Feinerer  <feinerer@logic.at>
7    
8            * R/reader.R (readReut21578XML, readRCV1): Extract more meta
9            data.
10    
11    2010-01-12  Ingo Feinerer  <feinerer@logic.at>
12    
13            * R/doc.R (`Content<-`): Be careful with names attribute.
14    
15    2010-01-07  Stefan Theussl  <stefan.theussl@wu.ac.at>
16    
17            * R/source.R (DirSource): Improved implementation especially when
18            handling many (>1M) files.
19    
20    2009-12-22  Ingo Feinerer  <feinerer@logic.at>
21    
22            * R/source.R (getElem.URISource): Use encoding argument.
23    
24    2009-12-11  Ingo Feinerer  <feinerer@logic.at>
25    
26            * R/doc.R (setOldClass): Register S3 document classes to be
27            recognized by S4 methods.
28    
29    2009-11-25  Ingo Feinerer  <feinerer@logic.at>
30    
31            * R/matrix.R (termFreq): Add option to remove punctuation
32            characters.
33    
34    2009-11-19  Ingo Feinerer  <feinerer@logic.at>
35    
36            * R/matrix.R (c.TermDocumentMatrix): Added combine method for
37            merging multiple term-document matrices.
38    
39    2009-11-17  Ingo Feinerer  <feinerer@logic.at>
40    
41            * R/corpus.R (setOldClass): Register S3 corpus classes to be
42            recognized by S4 methods.
43    
44            * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
45            that CRAN Mac OS X builds do not fail any longer.
46    
47    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
48    
49            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
50            of RWeka:AlphabeticTokenizer() as default.
51    
52    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
53    
54            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
55            caused words at the beginning or the end of a line not to be removed. Do
56            not delete whitespace anymore.
57    
58    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
59    
60            * R/source.R (DirSource): Default to working directory if no path
61            is specified.
62    
63    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
64    
65            * R/source.R (DirSource): Stop on empty directories.
66    
67    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
68    
69            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
70            named documents.
71    
72    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
73    
74            * R/transform.R (removeWords): Improve regular expressions.
75    
76    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
77    
78            * R/meta.R (DublinCore): Allow lower case tags.
79    
80    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
81    
82            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
83            instead of x$children.
84    
85    2009-09-15  Ingo Feinerer  <feinerer@logic.at>
86    
87            * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
88    
89    2009-09-06  Ingo Feinerer  <feinerer@logic.at>
90    
91            * R/: Use S3 instead of S4 class system.
92    
93    2009-08-11  Ingo Feinerer  <feinerer@logic.at>
94    
95            * R/reader.R (readMail): Moved to tm.plugin.mail package.
96    
97    2009-07-04  Ingo Feinerer  <feinerer@logic.at>
98    
99            * R/reader.R (readNewsgroup): Rename to readMail as newsgroup
100            postings are basically e-mails with some extra headers.
101    
102    2009-07-03  Ingo Feinerer  <feinerer@logic.at>
103    
104            * R/transform.R: Move convertMboxEml, removeCitation,
105            removeMultipart, and removeSignature to the tm.plugin.mail package
106            since they are mainly utility functions (for handling e-mails) and
107            not very framework specific.
108    
109    2009-06-28  Ingo Feinerer  <feinerer@logic.at>
110    
111            * man/: Fix documentation.
112    
113    2009-06-26  Ingo Feinerer  <feinerer@logic.at>
114    
115            * R/reader.R (readReut21578XMLasPlain): New reader which returns a
116            plain text document instead of an XML document for texts of the
117            Reuters-21578 dataset.
118    
119            * R/sparse.R: Removed since the slam package is now available on
120            CRAN.
121    
122            * DESCRIPTION (Depends): Add slam package.
123    
124    2009-06-17  Ingo Feinerer  <feinerer@logic.at>
125    
126            * R/transform.R (stemDoc): Fix character(0) handling.
127    
128    2009-06-12  Ingo Feinerer  <feinerer@logic.at>
129    
130            * R/doc.R (show): Pretty print.
131    
132    2009-05-27  Ingo Feinerer  <feinerer@logic.at>
133    
134            * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
135            gracefully.
136    
137    2009-05-13  Ingo Feinerer  <feinerer@logic.at>
138    
139            * R/corpus.R: Make corpus virtual. Implement corpus with standard
140            and permanent storage semantics.
141    
142            * DESCRIPTION: New major release. A *lot* of improvements.
143    
144    2009-05-04   Ingo Feinerer <feinerer@logic.at>
145    
146            * NAMESPACE: Export some simple_triplet_matrix functions.
147    
148    2009-04-28   Ingo Feinerer <feinerer@logic.at>
149    
150            * R/weight.R: Adapt tf-idf to new matrix format.
151    
152    2009-04-27  Ingo Feinerer  <feinerer@logic.at>
153    
154            * R/matrix.R: Create two distinct classes for term-document and
155            document-term matrices.
156    
157    2009-04-26  Ingo Feinerer  <feinerer@logic.at>
158    
159            * R/termdocmatrix.R: No longer use Matrix package. This reduces
160            package start-up time significantly.
161    
162    2009-04-11  Ingo Feinerer  <feinerer@logic.at>
163    
164            * inst/doc/tm.Rnw: Fix code/documentation mismatch.
165    
166    2009-04-04  Ingo Feinerer  <feinerer@logic.at>
167    
168            * R/transform.R (tmReduce): Combine multiple maps into one
169            transformation.
170    
171    2009-04-03  Ingo Feinerer  <feinerer@logic.at>
172    
173            * R/weight.R: Remove weightLogical since it does not return a
174            dgCMatrix.
175    
176            * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
177            or TermDocumentMatrix instead.
178    
179    2009-03-28  Ingo Feinerer  <feinerer@logic.at>
180    
181            * inst/doc/extensions.Rnw: Finished vignette.
182    
183    2009-03-27  Ingo Feinerer  <feinerer@logic.at>
184    
185            * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
186            DocumentTermMatrix representations.
187    
188    2009-03-23  Ingo Feinerer  <feinerer@logic.at>
189    
190            * R/reader.R (readXML): New reader for arbitrary XML files.
191    
192  2009-03-22  Ingo Feinerer  <feinerer@logic.at>  2009-03-22  Ingo Feinerer  <feinerer@logic.at>
193    
194          * R/source.R (CSVSource): Defunct (use DataframeSource instead).          * R/source.R (CSVSource): Defunct (use DataframeSource instead).
# Line 6  Line 197 
197    
198  2009-03-21  Ingo Feinerer  <feinerer@logic.at>  2009-03-21  Ingo Feinerer  <feinerer@logic.at>
199    
200          * R/reader.R (readCustom): Experimental reader which can be          * R/reader.R (readTabular): Experimental reader for tabular data
201          customized via user-defined mappings.          structures which can be customized via user-defined mappings.
202    
203          * R/reader.R: Always use UTC time zone.          * R/reader.R: Always use UTC time zone.
204    

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