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revision 711, Tue Jan 30 13:03:55 2007 UTC revision 761, Tue Jul 10 14:59:57 2007 UTC
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1    2007-07-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
2    
3            * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
4    
5    2007-06-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
6    
7            * R/termdocmatrix.R: require() uses the quietly option to suppress
8            loading messages.
9    
10    2007-06-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
11    
12            * R/dictionary.R: Added dictionary support.
13    
14    2007-06-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
15    
16            * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
17            documents. This simplifies some functions, e.g., asPlain.
18    
19    2007-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
20    
21            * inst/doc/tm.Rnw: Fixed some typos in vignette.
22    
23    2007-06-03  Ingo Feinerer  <h0125130@wu-wien.ac.at>
24    
25            * R/textdoccol.R (replaceWords): Added method to replace a set of
26            words by a single word. Useful for synonyms.
27    
28    2007-05-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
29    
30            * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
31    
32    2007-05-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
33    
34            * R/termdocmatrix.R (textvector): Small fix for dealing with empty
35            vectors. Thanks to Ariel Maguyon for his error report.
36            (removeSparseTerms): New function to remove columns from a
37            term-document matrix exceeding a sparse factor.
38    
39    2007-05-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
40    
41            * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
42    
43    2007-05-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
44    
45            * man/sFilter.Rd: Corrected documentation on statement format (use
46            '==' instead of '=').
47    
48    2007-05-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
49    
50            * R/aobjects.R (StructuredTextDocument): Inherits from
51            TextDocument.
52    
53    2007-05-04  Ingo Feinerer  <h0125130@wu-wien.ac.at>
54    
55            * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
56            on sparse matrices as proposed by Martin Maechler.
57    
58    2007-04-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
59    
60            * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
61            \pkg{filehash} version makes them deprecated.
62    
63    2007-04-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
64    
65            * R/termdocmatrix.R (textvector): Stemming is now performed before
66            erasing stopwords.
67            (weightMatrix): Adapted to handle sparse matrices.
68            (TermDocMatrix): Sparse matrix is now efficiently built by
69            direct stepwise insertion of row values into it.
70    
71    2007-04-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
72    
73            * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
74            due to ongoing problems. For our purposes the latter is as useful
75            as the replaced package.
76    
77    2007-04-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>
78    
79            * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.
80    
81            * man/TermDocMatrix.Rd: Remove deprecated \code{language} argument.
82    
83    2007-04-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
84    
85            * R/resolve.R (resolveISOCode): Added ISO 639-1 codes for
86            languages with available stopwords.
87    
88    2007-04-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
89    
90            * inst/doc/tm.Rnw: Minor corrections in the vignette.
91    
92    2007-04-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
93    
94            * DESCRIPTION: Update to version 0.2, since a lot of new features
95            have been integrated.
96    
97            * inst/stopwords: Updated existing stopwords and added stopwords
98            for various other languages.
99    
100    2007-04-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
101    
102            * man/: Updated documentation.
103    
104            * Work/testDb.R: Script to test database stuff.
105    
106            * R/: Fixed various database related bugs. Seems to be rather
107            useable now, i.e., consider as alpha status for now.
108    
109    2007-04-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
110    
111            * R/: Fixed some bugs related to database support.
112    
113    2007-04-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
114    
115            * man/: Added a lot of examples to the manuals.
116    
117    2007-04-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
118    
119            * man/: Updated parts of the documentation.
120    
121            * R/textdoccol.R (asPlain): Added conversion from newsgroup
122            documents to plain text documents.
123    
124    2007-04-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
125    
126            * R/textdoccol.R: Finished experimental database support. Not yet
127            intensively tested.
128    
129            * R/source.R: Now each source has a default reader.
130    
131            * R/reader.R: \code{FunctionGenerator} is now an attribute, not a
132            class anymore.
133    
134            * R/plaintextdoc.R: Custom show method for plain text documents.
135    
136            * R/aobjects.R: Added a class for structured text documents.
137    
138            * R/reader.R: Replaced remaining \code{parser} occurrences with
139            \code{reader}.
140    
141            * R/textdoccol.R (summary): Indent tags.
142    
143            * R/textdoccol.R (removePunctuation): Transform method to remove
144            punctuation marks.
145    
146    2007-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
147    
148            * R/textdoccol.R (sFilter): Simplified sFilter significantly by
149            using prescindMeta().
150    
151    2007-03-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
152    
153            * R/textdoccol.R: Improved database support.
154    
155    2007-03-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
156    
157            * R/termdocmatrix.R (TermDocMatrix): Uses sparse matrices.
158    
159            * R/resolve.R (resolveISOcode): Extracts the language from a ISO
160            language code.
161    
162            * R/textdoccol.R (TextDocCol): Refactored several parser arguments
163            into parserControl argument.
164    
165            * R/aobjects.R (TextDocument): Introduced the "Language" slot.
166    
167    2007-03-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
168    
169            * Work/tmDataSetup.R: The datasets acq and crude can now be
170            created on the fly.
171    
172            * R/stopwords.R: Introduced a function returning the stopwords for
173            a given language (English, German and French at the moment)
174    
175            * R/textdoccol.R (stemDoc): Stemming uses Rstem if available,
176            otherwise falls back to Snowball package.
177    
178  2007-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>  2007-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
179    
180          * man/dissimilarity-methods.Rd: Make clear that any method offered          * man/dissimilarity-methods.Rd: Make clear that any method offered

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