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revision 911, Sun Mar 22 17:55:16 2009 UTC revision 954, Wed May 27 18:33:32 2009 UTC
# Line 1  Line 1 
1    2009-05-27  Ingo Feinerer  <feinerer@logic.at>
2    
3            * R/matrix.R (print.TermDocumentMatrix): Handle empty matrices
4            gracefully.
5    
6    2009-05-13  Ingo Feinerer  <feinerer@logic.at>
7    
8            * R/corpus.R: Make corpus virtual. Implement corpus with standard
9            and permanent storage semantics.
10    
11            * DESCRIPTION: New major release. A *lot* of improvements.
12    
13    2009-05-04   Ingo Feinerer <feinerer@logic.at>
14    
15            * NAMESPACE: Export some simple_triplet_matrix functions.
16    
17    2009-04-28   Ingo Feinerer <feinerer@logic.at>
18    
19            * R/weight.R: Adapt tf-idf to new matrix format.
20    
21    2009-04-27  Ingo Feinerer  <feinerer@logic.at>
22    
23            * R/matrix.R: Create two distinct classes for term-document and
24            document-term matrices.
25    
26    2009-04-26  Ingo Feinerer  <feinerer@logic.at>
27    
28            * R/termdocmatrix.R: No longer use Matrix package. This reduces
29            package start-up time significantly.
30    
31    2009-04-11  Ingo Feinerer  <feinerer@logic.at>
32    
33            * inst/doc/tm.Rnw: Fix code/documentation mismatch.
34    
35    2009-04-04  Ingo Feinerer  <feinerer@logic.at>
36    
37            * R/transform.R (tmReduce): Combine multiple maps into one
38            transformation.
39    
40    2009-04-03  Ingo Feinerer  <feinerer@logic.at>
41    
42            * R/weight.R: Remove weightLogical since it does not return a
43            dgCMatrix.
44    
45            * R/termdocmatrix.R: Removed TermDocMatrix. Use DocumentTermMatrix
46            or TermDocumentMatrix instead.
47    
48    2009-03-28  Ingo Feinerer  <feinerer@logic.at>
49    
50            * inst/doc/extensions.Rnw: Finished vignette.
51    
52    2009-03-27  Ingo Feinerer  <feinerer@logic.at>
53    
54            * R/termdocmatrix.R: Start to work on new TermDocumentMatrix and
55            DocumentTermMatrix representations.
56    
57    2009-03-23  Ingo Feinerer  <feinerer@logic.at>
58    
59            * R/reader.R (readXML): New reader for arbitrary XML files.
60    
61  2009-03-22  Ingo Feinerer  <feinerer@logic.at>  2009-03-22  Ingo Feinerer  <feinerer@logic.at>
62    
63          * R/source.R (CSVSource): Defunct (use DataframeSource instead).          * R/source.R (CSVSource): Defunct (use DataframeSource instead).
# Line 6  Line 66 
66    
67  2009-03-21  Ingo Feinerer  <feinerer@logic.at>  2009-03-21  Ingo Feinerer  <feinerer@logic.at>
68    
69          * R/reader.R (readCustom): Experimental reader which can be          * R/reader.R (readTabular): Experimental reader for tabular data
70          customized via user-defined mappings.          structures which can be customized via user-defined mappings.
71    
72          * R/reader.R: Always use UTC time zone.          * R/reader.R: Always use UTC time zone.
73    

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