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revision 738, Fri Apr 20 13:55:34 2007 UTC revision 833, Fri Mar 21 10:55:11 2008 UTC
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1    2008-03-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
2    
3            * R/textdoccol.R (materialize, tmMap): Improvements suggested by
4            Christian Buchta.
5    
6            * inst/CITATION: Added template to include JSS article reference.
7    
8    2008-03-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
9    
10            * R/textdoccol.R (tmMap): Introduced lazy mapping.
11    
12            * R/source.R: Added VectorSource.
13    
14    2008-02-23  Ingo Feinerer  <h0125130@wu-wien.ac.at>
15    
16            * man/: Language codes should be in ISO 639-1 format.
17    
18            * R/textdoccol.R (asPlain): Preserve local meta data.
19    
20    2008-01-31  Ingo Feinerer  <h0125130@wu-wien.ac.at>
21    
22            * R/textdoccol.R (writeCorpus): Function for writing a corpus
23            containing plain text documents to disk.
24    
25    2008-01-30  Ingo Feinerer  <h0125130@wu-wien.ac.at>
26    
27            * R/termdocmatrix.R (TermDocMatrix): Ensure that dimnames are
28            always set correctly.
29    
30            * R/textdoccol.R: Set load = TRUE as default for load on demand
31            since in most cases this is the wanted behaviour.
32    
33    2008-01-24  Ingo Feinerer  <h0125130@wu-wien.ac.at>
34    
35            * R/: Renamed TextDocCol to Corpus, and Corpus to Content.
36    
37            * DESCRIPTION: Updated Version to 0.3 due to core name changes.
38    
39    2008-01-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
40    
41            * R/meta.R (meta): New function for consistent access to meta data
42            of document collections, repositories, and texts.
43    
44    2008-01-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
45    
46            * R/: Better support for encodings.
47    
48    2008-01-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
49    
50            * R/textdoccol.R (TextDocCol): Fixed bug regarding default reader
51            selection when no reader argument is given.
52    
53    2008-01-05  Ingo Feinerer  <h0125130@wu-wien.ac.at>
54    
55            * R/source.R (CSVSource): Now uses read.csv instead of scan
56            internally.
57    
58    2008-01-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
59    
60            * R/reader.R (getReaders): Returns available reader functions.
61    
62            * R/termdocmatrix.R (TermDocMatrix): Set new modular constructor
63            as default.
64    
65    2007-12-02  Ingo Feinerer  <h0125130@wu-wien.ac.at>
66    
67            * R/stopwords.R (stopwords): Shortened code, removed codetools
68            variable warnings.
69    
70            * man/: Documentation for showMeta, added an example for tmMap.
71    
72            * inst/doc/tm.Rnw: Updated vignette, comments on MS word reader,
73            some minor typos fixed.
74    
75    2007-12-01  Ingo Feinerer  <h0125130@wu-wien.ac.at>
76    
77            * R/aobjects.R (showMeta): Added method for pretty printing a
78            text document's meta data.
79    
80    2007-11-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
81    
82            * R/textdoccol.R (TextDocCol): Better handling of empty
83            arguments.
84    
85            * NAMESPACE: Exported readDOC.
86    
87            * man/completeStems.Rd: Added an example.
88    
89    2007-11-18  Ingo Feinerer  <h0125130@wu-wien.ac.at>
90    
91            * R/stopwords.R (stopwords): Look up .dat files at every
92            call. Allows users to modify stopword .dat files interactively.
93    
94    2007-11-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
95    
96            * R/termdocmatrix.R (termFreq): Correct processing of empty
97            documents.
98    
99    2007-10-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
100    
101            * man/: Updated documentation.
102    
103    2007-10-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
104    
105            * R/complete.R (completeStems): Completes (heuristically) word
106            stems.
107    
108            * R/termdocmatrix.R (TermDocMatrix2): New modular
109            constructor.
110    
111            * NAMESPACE: Exported termFreq.
112    
113    2007-10-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
114    
115            * R/reader.R (readDOC): Added MS Word reader (using antiword).
116    
117    2007-10-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
118    
119            * R/weight.R: Weighting functions for TermDocMatrix.
120    
121    2007-10-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
122    
123            * R/termdocmatrix.R (dimnames, colnames, rownames): Wrapper
124            functions for accessing dimension, column, and row names.
125    
126            * R/plot.R (plot.TermDocMatrix): Plot correlations between terms.
127    
128    2007-09-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
129    
130            * man/removePunctuation.Rd: Added documentation. Function also exported to NAMESPACE.
131    
132    2007-08-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
133    
134            * R/fungen.R: Use S4 class for function generators instead of S3 attributes.
135    
136    2007-07-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
137    
138            * R/reader.R (readPDF): Removed manual checks for pdftotext and
139            pdfinfo. The system call gives a warning anyway.
140    
141    2007-07-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
142    
143            * R/textdoccol.R (asPlain): Conversion from
144            StructuredTextDocuments to PlainTextDocuments.
145    
146    2007-07-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
147    
148            * R/termdocmatrix.R: Added convenience methods ("[", nrow, ncol)
149            for accessing term-document matrices.
150    
151            * inst/doc/tm.Rnw: readPDF is only called if pdftotext and pdfinfo
152            are installed.
153    
154    2007-07-17  Ingo Feinerer  <h0125130@wu-wien.ac.at>
155    
156            * R/termdocmatrix.R (TermDocMatrix): Improved efficiency. Kudos to
157            Christian Buchta.
158    
159    2007-07-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
160    
161            * inst/doc/tm.Rnw: Update vignette (readPDF, readHTML, preprocessReut21578XML).
162    
163    2007-07-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
164    
165            * R/reader.R (readHTML): Added very simple HTML reader to obtain StructuredTextDocuments.
166    
167            * R/reader.R (readPDF): Added PDF reader.
168    
169    2007-07-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
170    
171            * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
172    
173            * inst/stopwords/english.dat: Added the term "yes" to stopwords.
174    
175            * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
176    
177            * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
178    
179    2007-07-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
180    
181            * R/distmeasure.R (dissimilarity): Replaced dists call from
182            package cba by new dist call from package proxy.
183    
184    2007-07-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
185    
186            * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
187    
188    2007-06-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
189    
190            * R/termdocmatrix.R: require() uses the quietly option to suppress
191            loading messages.
192    
193    2007-06-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
194    
195            * R/dictionary.R: Added dictionary support.
196    
197    2007-06-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
198    
199            * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
200            documents. This simplifies some functions, e.g., asPlain.
201    
202    2007-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
203    
204            * inst/doc/tm.Rnw: Fixed some typos in vignette.
205    
206    2007-06-03  Ingo Feinerer  <h0125130@wu-wien.ac.at>
207    
208            * R/textdoccol.R (replaceWords): Added method to replace a set of
209            words by a single word. Useful for synonyms.
210    
211    2007-05-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
212    
213            * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
214    
215    2007-05-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
216    
217            * R/termdocmatrix.R (textvector): Small fix for dealing with empty
218            vectors. Thanks to Ariel Maguyon for his error report.
219            (removeSparseTerms): New function to remove columns from a
220            term-document matrix exceeding a sparse factor.
221    
222    2007-05-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
223    
224            * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
225    
226    2007-05-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
227    
228            * man/sFilter.Rd: Corrected documentation on statement format (use
229            '==' instead of '=').
230    
231    2007-05-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
232    
233            * R/aobjects.R (StructuredTextDocument): Inherits from
234            TextDocument.
235    
236    2007-05-04  Ingo Feinerer  <h0125130@wu-wien.ac.at>
237    
238            * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
239            on sparse matrices as proposed by Martin Maechler.
240    
241    2007-04-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
242    
243            * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
244            \pkg{filehash} version makes them deprecated.
245    
246    2007-04-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
247    
248            * R/termdocmatrix.R (textvector): Stemming is now performed before
249            erasing stopwords.
250            (weightMatrix): Adapted to handle sparse matrices.
251            (TermDocMatrix): Sparse matrix is now efficiently built by
252            direct stepwise insertion of row values into it.
253    
254    2007-04-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
255    
256            * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
257            due to ongoing problems. For our purposes the latter is as useful
258            as the replaced package.
259    
260  2007-04-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>  2007-04-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>
261    
262          * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.          * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.

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