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revision 911, Sun Mar 22 17:55:16 2009 UTC revision 1161, Wed Dec 7 06:10:32 2011 UTC
# Line 1  Line 1 
1    2011-12-07  Ingo Feinerer  <feinerer@logic.at>
2    
3            * R/transform.R (removePunctuation): Add option to preserve
4            intra-word dashes.
5    
6    2011-12-06  Ingo Feinerer  <feinerer@logic.at>
7    
8            * R/matrix.R (termFreq): Allow reordering of control option
9            processing.
10    
11    2011-11-17  Ingo Feinerer  <feinerer@logic.at>
12    
13            * R/reader.R (readPDF): Use tools:::pdf_info() instead of external
14            pdfinfo tool.
15    
16            * inst/stopwords/SMART.dat: Add SMART information retrieval system
17            stopwords (which are also used by the MC toolkit).
18    
19            * R/matrix (termFreq): Allow local option \code{bounds$local} to
20            restrict how often a term may appear in each document (generalizes
21            \code{minDocFreq}). Similarly the local option \code{wordLenghts}
22            for word length bounds (generalizes \code{minWordLength}).
23    
24            * R/matrix.R (TermDocumentMatrix.VCorpus): New global option
25            \code{bounds$global} for restricting how often a term is allowed
26            to appear in different documents.
27    
28            * R/matrix.R (TermDocumentMatrix.VCorpus): Distinguish between
29            local options delegated internally to termFreq() and global
30            options which are processed by the term-document matrix
31            constructor itself.
32    
33    2011-11-15  Ingo Feinerer  <feinerer@logic.at>
34    
35            * man/getTokenizers.Rd: Document getTokenizers().
36    
37            * man/tokenizer.Rd: Document MC_tokenizer() and scan_tokenizer().
38    
39    2011-11-04  Ingo Feinerer  <feinerer@logic.at>
40    
41            * man/matrix.Rd: Document as.TermDocumentMatrix.term_frequency.
42    
43            * man/combine.Rd: Document c.term_frequency().
44    
45    2011-10-11  Ingo Feinerer  <feinerer@logic.at>
46    
47            * R/meta.R (`meta<-.Corpus`): Assume that the replacement value
48            can be accessed via '[' and not '[['.
49    
50    2011-08-24  Ingo Feinerer  <feinerer@logic.at>
51    
52            * R/stopwords.R (stopwords): Raise an error if no stopwords are
53            available for requested language. Suggested by Derek M Jones.
54    
55    2011-05-27  Ingo Feinerer  <feinerer@logic.at>
56    
57            * R/weight.R (weightSMART): Implement Cosine and pivoted unique
58            normalization.
59    
60    2011-02-17  Ingo Feinerer  <feinerer@logic.at>
61    
62            * R/transform.R (stemDocument.PlainTextDocument): Use language
63            argument.
64    
65    2011-02-04  Ingo Feinerer  <feinerer@logic.at>
66    
67            * R/source.R: Store strings and connections instead of unevaluated
68            calls.
69    
70    2010-11-26  Ingo Feinerer  <feinerer@logic.at>
71    
72            * R/corpus.R (Corpus): Allow init and exit hooks for readers.
73    
74    2010-10-22  Ingo Feinerer  <feinerer@logic.at>
75    
76            * R/matrix.R (.TermDocumentMatrix): Make Weighting an attribute
77            (instead of a list element).
78    
79    2010-10-16  Ingo Feinerer  <feinerer@logic.at>
80    
81            * R/corpus.R (`[[.VCorpus`, `[[.PCorpus'): Access individual
82            documents by names (fallback to IDs if names are not set).
83    
84    2010-08-25  Ingo Feinerer  <feinerer@logic.at>
85    
86            * R/corpus.R (c.Corpus): When concatenating corpora, the argument
87            \code{recursive} now determines whether existing corpus meta data
88            is used.
89    
90    2010-08-06  Ingo Feinerer  <feinerer@logic.at>
91    
92            * R/transform.R: Removed convert_UTF_8(). Use enc2utf8() instead.
93    
94    2010-06-17  Ingo Feinerer  <feinerer@logic.at>
95    
96            * R/matrix.R (TermDocumentMatrix): If a dictionary is given do not
97            remove terms not occurring in the corpus anymore.
98    
99    2010-06-02  Ingo Feinerer  <feinerer@logic.at>
100    
101            * R/plot.R (Zipf_plot, Heaps_plot): Plotting functions for Zipf's
102            and Heaps' law.
103    
104    2010-05-18  Ingo Feinerer  <feinerer@logic.at>
105    
106            * R/corpus.R (Corpus, PCorpus): Use element names as IDs if
107            provided by a source.
108    
109    2010-04-09  Ingo Feinerer  <feinerer@logic.at>
110    
111            * R/source.R (.Source): Provide document names.
112    
113    2010-04-07  Ingo Feinerer  <feinerer@logic.at>
114    
115            * R/meta.R (`content_or_meta`): Utility function.
116    
117    2010-03-19  Ingo Feinerer  <feinerer@logic.at>
118    
119            * R/reader.R (readReut21578XML, readReut21578XMLasPlain): Extract
120            TOPICS, LEWISSPLIT, CGISPLIT, and OLDID meta tags.
121    
122    2010-03-03  Ingo Feinerer  <feinerer@logic.at>
123    
124            * R/weight.R (weightTfIdf): Added normalization option.
125    
126            * man/tm_tag_score.Rd: Add General Inquirer example for sentiment
127            analysis.
128    
129    2010-02-25  Ingo Feinerer  <feinerer@logic.at>
130    
131            * R/score.R (tm_tag_score): Compute a score from the number of
132            tags matching in a document.
133    
134    2010-02-18  Ingo Feinerer  <feinerer@logic.at>
135    
136            * R/complete.R (stemCompletion): New completion heuristics.
137    
138    2010-02-17  Ingo Feinerer  <feinerer@logic.at>
139    
140            * R/plot.R (plot.TermDocumentMatrix): Memory improvements.
141    
142    2010-02-06  Ingo Feinerer  <feinerer@logic.at>
143    
144            * DESCRIPTION (Depends): Depend on R (>= 2.10.0) to ensure that
145            setOldClass(c(..., "list")) works.
146    
147    2010-01-22  Ingo Feinerer  <feinerer@logic.at>
148    
149            * R/transform.R (stemDocument.character): In case input is a
150            simple character just delegate to the default Snowball stemmer.
151    
152    2010-01-15  Ingo Feinerer  <feinerer@logic.at>
153    
154            * R/reader.R (readReut21578XML, readRCV1): Extract more meta
155            data.
156    
157    2010-01-12  Ingo Feinerer  <feinerer@logic.at>
158    
159            * R/doc.R (`Content<-`): Be careful with names attribute.
160    
161    2010-01-07  Stefan Theussl  <stefan.theussl@wu.ac.at>
162    
163            * R/source.R (DirSource): Improved implementation especially when
164            handling many (> 1M) files.
165    
166    2009-12-22  Ingo Feinerer  <feinerer@logic.at>
167    
168            * R/source.R (getElem.URISource): Use encoding argument.
169    
170    2009-12-11  Ingo Feinerer  <feinerer@logic.at>
171    
172            * R/doc.R (setOldClass): Register S3 document classes to be
173            recognized by S4 methods.
174    
175    2009-11-25  Ingo Feinerer  <feinerer@logic.at>
176    
177            * R/matrix.R (termFreq): Add option to remove punctuation
178            characters.
179    
180    2009-11-19  Ingo Feinerer  <feinerer@logic.at>
181    
182            * R/matrix.R (c.TermDocumentMatrix): Added combine method for
183            merging multiple term-document matrices.
184    
185    2009-11-17  Ingo Feinerer  <feinerer@logic.at>
186    
187            * R/corpus.R (setOldClass): Register S3 corpus classes to be
188            recognized by S4 methods.
189    
190            * man/plot.Rd: Use \dontrun{} in \examples{} section in the hope
191            that CRAN Mac OS X builds do not fail any longer.
192    
193    2009-11-15  Ingo Feinerer  <feinerer@logic.at>
194    
195            * R/matrix.R (tokenize): Use scan(..., what = "character") instead
196            of RWeka:AlphabeticTokenizer() as default.
197    
198    2009-11-14  Ingo Feinerer  <feinerer@logic.at>
199    
200            * R/transform.R (removeWords.PlainTextDocument): Fix bug which
201            caused words at the beginning or the end of a line not to be removed. Do
202            not delete whitespace anymore.
203    
204    2009-11-12  Ingo Feinerer  <feinerer@logic.at>
205    
206            * R/source.R (DirSource): Default to working directory if no path
207            is specified.
208    
209    2009-11-11  Ingo Feinerer  <feinerer@logic.at>
210    
211            * R/source.R (DirSource): Stop on empty directories.
212    
213    2009-11-07  Ingo Feinerer  <feinerer@logic.at>
214    
215            * R/matrix.R (TermDocumentMatrix): Avoid prefixes originating from
216            named documents.
217    
218    2009-10-21  Ingo Feinerer  <feinerer@logic.at>
219    
220            * R/transform.R (removeWords): Improve regular expressions.
221    
222    2009-10-19  Ingo Feinerer  <feinerer@logic.at>
223    
224            * R/meta.R (DublinCore): Allow lower case tags.
225    
226    2009-10-09  Ingo Feinerer  <feinerer@logic.at>
227    
228            * R/source.R (GmaneSource, ReutersSource): Use xmlChildren(x)
229            instead of x$children.
230    
231    2009-09-15  Ingo Feinerer  <feinerer@logic.at>
232    
233            * R/preprocess.R (preprocessReut21578XML): Fix generated file names.
234    
235    2009-09-06  Ingo Feinerer  <feinerer@logic.at>
236    
237            * R/: Use S3 instead of S4 class system.
238    
239    2009-08-11  Ingo Feinerer  <feinerer@logic.at>
240    
241            * R/reader.R (readMail): Moved to tm.plugin.mail package.
242    
243    2009-07-04  Ingo Feinerer  <feinerer@logic.at>
244    
245            * R/reader.R (readNewsgroup): Rename to readMail as newsgroup
246            postings are basically e-mails with some extra headers.
247    
248    2009-07-03  Ingo Feinerer  <feinerer@logic.at>
249    
250            * R/transform.R: Move convertMboxEml, removeCitation,
251            removeMultipart, and removeSignature to the tm.plugin.mail package
252            since they are mainly utility functions (for handling e-mails) and
253            not very framework specific.
254    
255    2009-06-28  Ingo Feinerer  <feinerer@logic.at>
256    
257            * man/: Fix documentation.
258    
259    2009-06-26  Ingo Feinerer  <feinerer@logic.at>
260    
261            * R/reader.R (readReut21578XMLasPlain): New reader which returns a
262            plain text document instead of an XML document for texts of the
263            Reuters-21578 dataset.
264    
265            * R/sparse.R: Removed since the slam package is now available on
266            CRAN.
267    
268            * DESCRIPTION (Depends): Add slam package.
269    
270    2009-06-17  Ingo Feinerer  <feinerer@logic.at>
271    
272            * R/transform.R (stemDoc): Fix character(0) handling.
273    
274    2009-06-12  Ingo Feinerer  <feinerer@logic.at>
275    
276            * R/doc.R (show): Pretty print.
277    
278    2009-05-27  Ingo Feinerer  <feinerer@logic.at>
279    
280            * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
281            gracefully.
282    
283    2009-05-13  Ingo Feinerer  <feinerer@logic.at>
284    
285            * R/corpus.R: Make corpus virtual. Implement corpus with standard
286            and permanent storage semantics.
287    
288            * DESCRIPTION: New major release. A *lot* of improvements.
289    
290    2009-05-04   Ingo Feinerer <feinerer@logic.at>
291    
292            * NAMESPACE: Export some simple_triplet_matrix functions.
293    
294    2009-04-28   Ingo Feinerer <feinerer@logic.at>
295    
296            * R/weight.R: Adapt tf-idf to new matrix format.
297    
298    2009-04-27  Ingo Feinerer  <feinerer@logic.at>
299    
300            * R/matrix.R: Create two distinct classes for term-document and
301            document-term matrices.
302    
303    2009-04-26  Ingo Feinerer  <feinerer@logic.at>
304    
305            * R/termdocmatrix.R: No longer use Matrix package. This reduces
306            package start-up time significantly.
307    
308    2009-04-11  Ingo Feinerer  <feinerer@logic.at>
309    
310            * inst/doc/tm.Rnw: Fix code/documentation mismatch.
311    
312    2009-04-04  Ingo Feinerer  <feinerer@logic.at>
313    
314            * R/transform.R (tmReduce): Combine multiple maps into one
315            transformation.
316    
317    2009-04-03  Ingo Feinerer  <feinerer@logic.at>
318    
319            * R/weight.R: Remove weightLogical since it does not return a
320            dgCMatrix.
321    
322            * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
323            or TermDocumentMatrix instead.
324    
325    2009-03-28  Ingo Feinerer  <feinerer@logic.at>
326    
327            * inst/doc/extensions.Rnw: Finished vignette.
328    
329    2009-03-27  Ingo Feinerer  <feinerer@logic.at>
330    
331            * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
332            DocumentTermMatrix representations.
333    
334    2009-03-23  Ingo Feinerer  <feinerer@logic.at>
335    
336            * R/reader.R (readXML): New reader for arbitrary XML files.
337    
338  2009-03-22  Ingo Feinerer  <feinerer@logic.at>  2009-03-22  Ingo Feinerer  <feinerer@logic.at>
339    
340          * R/source.R (CSVSource): Defunct (use DataframeSource instead).          * R/source.R (CSVSource): Defunct (use DataframeSource instead).
# Line 6  Line 343 
343    
344  2009-03-21  Ingo Feinerer  <feinerer@logic.at>  2009-03-21  Ingo Feinerer  <feinerer@logic.at>
345    
346          * R/reader.R (readCustom): Experimental reader which can be          * R/reader.R (readTabular): Experimental reader for tabular data
347          customized via user-defined mappings.          structures which can be customized via user-defined mappings.
348    
349          * R/reader.R: Always use UTC time zone.          * R/reader.R: Always use UTC time zone.
350    

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