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revision 738, Fri Apr 20 13:55:34 2007 UTC revision 757, Thu Jun 7 17:41:56 2007 UTC
# Line 1  Line 1 
1    2007-06-07  Ingo Feinerer  <h0125130@wu-wien.ac.at>
2    
3            * R/aobjects.R: Added classes for Reuters21578 XML and RCV1
4            documents. This simplifies some functions, e.g., asPlain.
5    
6    2007-06-06  Ingo Feinerer  <h0125130@wu-wien.ac.at>
7    
8            * inst/doc/tm.Rnw: Fixed some typos in vignette.
9    
10    2007-06-03  Ingo Feinerer  <h0125130@wu-wien.ac.at>
11    
12            * R/textdoccol.R (replaceWords): Added method to replace a set of
13            words by a single word. Useful for synonyms.
14    
15    2007-05-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
16    
17            * man/TermDocMatrix.Rd: Fixed documentation on Data slot.
18    
19    2007-05-19  Ingo Feinerer  <h0125130@wu-wien.ac.at>
20    
21            * R/termdocmatrix.R (textvector): Small fix for dealing with empty
22            vectors. Thanks to Ariel Maguyon for his error report.
23            (removeSparseTerms): New function to remove columns from a
24            term-document matrix exceeding a sparse factor.
25    
26    2007-05-15  Ingo Feinerer  <h0125130@wu-wien.ac.at>
27    
28            * man/tmUpdate.Rd: Corrected documentation on readerControl parameter.
29    
30    2007-05-11  Ingo Feinerer  <h0125130@wu-wien.ac.at>
31    
32            * man/sFilter.Rd: Corrected documentation on statement format (use
33            '==' instead of '=').
34    
35    2007-05-08  Ingo Feinerer  <h0125130@wu-wien.ac.at>
36    
37            * R/aobjects.R (StructuredTextDocument): Inherits from
38            TextDocument.
39    
40    2007-05-04  Ingo Feinerer  <h0125130@wu-wien.ac.at>
41    
42            * R/termdocmatrix.R (findFreqTerms): Perform efficient computation
43            on sparse matrices as proposed by Martin Maechler.
44    
45    2007-04-27  Ingo Feinerer  <h0125130@wu-wien.ac.at>
46    
47            * R/textdoccol.R: Removed \code{dbDisconnect} calls since last
48            \pkg{filehash} version makes them deprecated.
49    
50    2007-04-22  Ingo Feinerer  <h0125130@wu-wien.ac.at>
51    
52            * R/termdocmatrix.R (textvector): Stemming is now performed before
53            erasing stopwords.
54            (weightMatrix): Adapted to handle sparse matrices.
55            (TermDocMatrix): Sparse matrix is now efficiently built by
56            direct stepwise insertion of row values into it.
57    
58    2007-04-21  Ingo Feinerer  <h0125130@wu-wien.ac.at>
59    
60            * DESCRIPTION: Replaced \pkg{filehashSQLite} with \pkg{filehash}
61            due to ongoing problems. For our purposes the latter is as useful
62            as the replaced package.
63    
64  2007-04-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>  2007-04-20  Ingo Feinerer  <h0125130@wu-wien.ac.at>
65    
66          * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.          * man/TextDocCol.Rd: Replaced \code{readPlain} with \code{object@DefaultReader}.

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