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revision 738, Fri Apr 20 13:55:34 2007 UTC revision 793, Sun Oct 21 13:18:38 2007 UTC
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1    2007-10-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
2    
3            * R/complete.R (completeStems): Completes (heuristically) word
4            stems.
5    
6            * R/termdocmatrix.R (TermDocMatrix2): New modular
7            constructor.
8    
9            * NAMESPACE: Exported termFreq.
10    
11    2007-10-16  Ingo Feinerer  <h0125130@wu-wien.ac.at>
12    
13            * R/reader.R (readDOC): Added MS Word reader (using antiword).
14    
15    2007-10-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
16    
17            * R/weight.R: Weighting functions for TermDocMatrix.
18    
19    2007-10-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
20    
21            * R/termdocmatrix.R (dimnames, colnames, rownames): Wrapper
22            functions for accessing dimension, column, and row names.
23    
24            * R/plot.R (plot.TermDocMatrix): Plot correlations between terms.
25    
26    2007-09-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
27    
28            * man/removePunctuation.Rd: Added documentation. Function also exported to NAMESPACE.
29    
30    2007-08-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
31    
32            * R/fungen.R: Use S4 class for function generators instead of S3 attributes.
33    
34    2007-07-29  Ingo Feinerer  <h0125130@wu-wien.ac.at>
35    
36            * R/reader.R (readPDF): Removed manual checks for pdftotext and
37            pdfinfo. The system call gives a warning anyway.
38    
39    2007-07-28  Ingo Feinerer  <h0125130@wu-wien.ac.at>
40    
41            * R/textdoccol.R (asPlain): Conversion from
42            StructuredTextDocuments to PlainTextDocuments.
43    
44    2007-07-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
45    
46            * R/termdocmatrix.R: Added convenience methods ("[", nrow, ncol)
47            for accessing term-document matrices.
48    
49            * inst/doc/tm.Rnw: readPDF is only called if pdftotext and pdfinfo
50            are installed.
51    
52    2007-07-17  Ingo Feinerer  <h0125130@wu-wien.ac.at>
53    
54            * R/termdocmatrix.R (TermDocMatrix): Improved efficiency. Kudos to
55            Christian Buchta.
56    
57    2007-07-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
58    
59            * inst/doc/tm.Rnw: Update vignette (readPDF, readHTML, preprocessReut21578XML).
60    
61    2007-07-14  Ingo Feinerer  <h0125130@wu-wien.ac.at>
62    
63            * R/reader.R (readHTML): Added very simple HTML reader to obtain StructuredTextDocuments.
64    
65            * R/reader.R (readPDF): Added PDF reader.
66    
67    2007-07-13  Ingo Feinerer  <h0125130@wu-wien.ac.at>
68    
69            * DESCRIPTION: Moved proxy from Depends to Imports to avoid name clashes.
70    
71            * inst/stopwords/english.dat: Added the term "yes" to stopwords.
72    
73            * R/termdocmatrix.R (dim): dim function for TermDocMatrix.
74    
75            * R/preprocess.R (convertMboxEml): Accepts gzipped mboxes.
76    
77    2007-07-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
78    
79            * R/distmeasure.R (dissimilarity): Replaced dists call from
80            package cba by new dist call from package proxy.
81    
82    2007-07-10  Ingo Feinerer  <h0125130@wu-wien.ac.at>
83    
84            * inst/doc/tm.Rnw: Described removeSparseTerms and Dictionary.
85    
86    2007-06-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
87    
88            * R/termdocmatrix.R: require() uses the quietly option to suppress
89            loading messages.
90    
91    2007-06-12  Ingo Feinerer  <h0125130@wu-wien.ac.at>
92    
93            * R/dictionary.R: Added dictionary support.
94    
95    2007-06-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
96    
97            * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
98            documents. This simplifies some functions, e.g., asPlain.
99    
100    2007-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
101    
102            * inst/doc/tm.Rnw: Fixed some typos in vignette.
103    
104    2007-06-03  Ingo Feinerer  <h0125130@wu-wien.ac.at>
105    
106            * R/textdoccol.R (replaceWords): Added method to replace a set of
107            words by a single word. Useful for synonyms.
108    
109    2007-05-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
110    
111            * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
112    
113    2007-05-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
114    
115            * R/termdocmatrix.R (textvector): Small fix for dealing with empty
116            vectors. Thanks to Ariel Maguyon for his error report.
117            (removeSparseTerms): New function to remove columns from a
118            term-document matrix exceeding a sparse factor.
119    
120    2007-05-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
121    
122            * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
123    
124    2007-05-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
125    
126            * man/sFilter.Rd: Corrected documentation on statement format (use
127            '==' instead of '=').
128    
129    2007-05-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
130    
131            * R/aobjects.R (StructuredTextDocument): Inherits from
132            TextDocument.
133    
134    2007-05-04  Ingo Feinerer  <h0125130@wu-wien.ac.at>
135    
136            * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
137            on sparse matrices as proposed by Martin Maechler.
138    
139    2007-04-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
140    
141            * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
142            \pkg{filehash} version makes them deprecated.
143    
144    2007-04-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
145    
146            * R/termdocmatrix.R (textvector): Stemming is now performed before
147            erasing stopwords.
148            (weightMatrix): Adapted to handle sparse matrices.
149            (TermDocMatrix): Sparse matrix is now efficiently built by
150            direct stepwise insertion of row values into it.
151    
152    2007-04-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
153    
154            * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
155            due to ongoing problems. For our purposes the latter is as useful
156            as the replaced package.
157    
158  2007-04-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>  2007-04-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>
159    
160          * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.          * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.

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