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revision 711, Tue Jan 30 13:03:55 2007 UTC revision 785, Sat Oct 13 10:46:28 2007 UTC
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1    2007-10-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
2    
3            * R/termdocmatrix.R (dimnames, colnames, rownames): Wrapper
4            functions for accessing dimension, column, and row names.
5    
6            * R/plot.R (plot.TermDocMatrix): Plot correlations between terms.
7    
8    2007-09-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
9    
10            * man/removePunctuation.Rd: Added documentation. Function also exported to NAMESPACE.
11    
12    2007-08-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
13    
14            * R/fungen.R: Use S4 class for function generators instead of S3 attributes.
15    
16    2007-07-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
17    
18            * R/reader.R (readPDF): Removed manual checks for pdftotext and
19            pdfinfo. The system call gives a warning anyway.
20    
21    2007-07-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
22    
23            * R/textdoccol.R (asPlain): Conversion from
24            StructuredTextDocuments to PlainTextDocuments.
25    
26    2007-07-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
27    
28            * R/termdocmatrix.R: Added convenience methods ("[", nrow, ncol)
29            for accessing term-document matrices.
30    
31            * inst/doc/tm.Rnw: readPDF is only called if pdftotext and pdfinfo
32            are installed.
33    
34    2007-07-17  Ingo Feinerer  <h0125130@wu-wien.ac.at>
35    
36            * R/termdocmatrix.R (TermDocMatrix): Improved efficiency. Kudos to
37            Christian Buchta.
38    
39    2007-07-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
40    
41            * inst/doc/tm.Rnw: Update vignette (readPDF, readHTML, preprocessReut21578XML).
42    
43    2007-07-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
44    
45            * R/reader.R (readHTML): Added very simple HTML reader to obtain StructuredTextDocuments.
46    
47            * R/reader.R (readPDF): Added PDF reader.
48    
49    2007-07-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
50    
51            * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
52    
53            * inst/stopwords/english.dat: Added the term "yes" to stopwords.
54    
55            * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
56    
57            * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
58    
59    2007-07-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
60    
61            * R/distmeasure.R (dissimilarity): Replaced dists call from
62            package cba by new dist call from package proxy.
63    
64    2007-07-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
65    
66            * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
67    
68    2007-06-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
69    
70            * R/termdocmatrix.R: require() uses the quietly option to suppress
71            loading messages.
72    
73    2007-06-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
74    
75            * R/dictionary.R: Added dictionary support.
76    
77    2007-06-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
78    
79            * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
80            documents. This simplifies some functions, e.g., asPlain.
81    
82    2007-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
83    
84            * inst/doc/tm.Rnw: Fixed some typos in vignette.
85    
86    2007-06-03  Ingo Feinerer  <h0125130@wu-wien.ac.at>
87    
88            * R/textdoccol.R (replaceWords): Added method to replace a set of
89            words by a single word. Useful for synonyms.
90    
91    2007-05-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
92    
93            * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
94    
95    2007-05-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
96    
97            * R/termdocmatrix.R (textvector): Small fix for dealing with empty
98            vectors. Thanks to Ariel Maguyon for his error report.
99            (removeSparseTerms): New function to remove columns from a
100            term-document matrix exceeding a sparse factor.
101    
102    2007-05-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
103    
104            * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
105    
106    2007-05-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
107    
108            * man/sFilter.Rd: Corrected documentation on statement format (use
109            '==' instead of '=').
110    
111    2007-05-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
112    
113            * R/aobjects.R (StructuredTextDocument): Inherits from
114            TextDocument.
115    
116    2007-05-04  Ingo Feinerer  <h0125130@wu-wien.ac.at>
117    
118            * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
119            on sparse matrices as proposed by Martin Maechler.
120    
121    2007-04-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
122    
123            * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
124            \pkg{filehash} version makes them deprecated.
125    
126    2007-04-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
127    
128            * R/termdocmatrix.R (textvector): Stemming is now performed before
129            erasing stopwords.
130            (weightMatrix): Adapted to handle sparse matrices.
131            (TermDocMatrix): Sparse matrix is now efficiently built by
132            direct stepwise insertion of row values into it.
133    
134    2007-04-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
135    
136            * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
137            due to ongoing problems. For our purposes the latter is as useful
138            as the replaced package.
139    
140    2007-04-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>
141    
142            * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.
143    
144            * man/TermDocMatrix.Rd: Remove deprecated \code{language} argument.
145    
146    2007-04-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
147    
148            * R/resolve.R (resolveISOCode): Added ISO 639-1 codes for
149            languages with available stopwords.
150    
151    2007-04-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
152    
153            * inst/doc/tm.Rnw: Minor corrections in the vignette.
154    
155    2007-04-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
156    
157            * DESCRIPTION: Update to version 0.2, since a lot of new features
158            have been integrated.
159    
160            * inst/stopwords: Updated existing stopwords and added stopwords
161            for various other languages.
162    
163    2007-04-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
164    
165            * man/: Updated documentation.
166    
167            * Work/testDb.R: Script to test database stuff.
168    
169            * R/: Fixed various database related bugs. Seems to be rather
170            useable now, i.e., consider as alpha status for now.
171    
172    2007-04-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
173    
174            * R/: Fixed some bugs related to database support.
175    
176    2007-04-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
177    
178            * man/: Added a lot of examples to the manuals.
179    
180    2007-04-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
181    
182            * man/: Updated parts of the documentation.
183    
184            * R/textdoccol.R (asPlain): Added conversion from newsgroup
185            documents to plain text documents.
186    
187    2007-04-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
188    
189            * R/textdoccol.R: Finished experimental database support. Not yet
190            intensively tested.
191    
192            * R/source.R: Now each source has a default reader.
193    
194            * R/reader.R: \code{FunctionGenerator} is now an attribute, not a
195            class anymore.
196    
197            * R/plaintextdoc.R: Custom show method for plain text documents.
198    
199            * R/aobjects.R: Added a class for structured text documents.
200    
201            * R/reader.R: Replaced remaining \code{parser} occurrences with
202            \code{reader}.
203    
204            * R/textdoccol.R (summary): Indent tags.
205    
206            * R/textdoccol.R (removePunctuation): Transform method to remove
207            punctuation marks.
208    
209    2007-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
210    
211            * R/textdoccol.R (sFilter): Simplified sFilter significantly by
212            using prescindMeta().
213    
214    2007-03-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
215    
216            * R/textdoccol.R: Improved database support.
217    
218    2007-03-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
219    
220            * R/termdocmatrix.R (TermDocMatrix): Uses sparse matrices.
221    
222            * R/resolve.R (resolveISOcode): Extracts the language from a ISO
223            language code.
224    
225            * R/textdoccol.R (TextDocCol): Refactored several parser arguments
226            into parserControl argument.
227    
228            * R/aobjects.R (TextDocument): Introduced the "Language" slot.
229    
230    2007-03-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
231    
232            * Work/tmDataSetup.R: The datasets acq and crude can now be
233            created on the fly.
234    
235            * R/stopwords.R: Introduced a function returning the stopwords for
236            a given language (English, German and French at the moment)
237    
238            * R/textdoccol.R (stemDoc): Stemming uses Rstem if available,
239            otherwise falls back to Snowball package.
240    
241  2007-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>  2007-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
242    
243          * man/dissimilarity-methods.Rd: Make clear that any method offered          * man/dissimilarity-methods.Rd: Make clear that any method offered

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