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Annotation of /trunk/textmin/ChangeLog

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Revision 22 - (view) (download)
Original Path: trunk/R/trunk/ChangeLog

1 : feinerer 21 2005-11-19 Ingo Feinerer <h0125130@wu-wien.ac.at>
2 :    
3 : feinerer 22 * R/textdoccol.R: Constructor of textdoccol allows import of CSV
4 :     files. See the questionnaire data/Umfrage.csv for such an example.
5 :    
6 : feinerer 21 * Changed class interfaces in various files. Weighting of the text
7 :     matrix is now possible.
8 :    
9 : feinerer 20 2005-11-08 Ingo Feinerer <h0125130@wu-wien.ac.at>
10 :    
11 :     * R/textdoccol.R: One can build term-document matrices if
12 :     nessecary (with buildTDM(...)) and fill the field tdm from a text
13 :     document collection with it.
14 :    
15 :     * R/textmatrix.R: Wrote S4 class for term-document matrices.
16 :    
17 : feinerer 19 2005-11-06 Ingo Feinerer <h0125130@wu-wien.ac.at>
18 :    
19 :     * R/textdoccol.R: We now can read in a whole XML file with several
20 :     news items.
21 :    
22 : feinerer 17 2005-11-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
23 :    
24 :     * R/textdoccol.R: Set up an S4 class for a collection of text
25 :     documents. A first attempt to read in XML input (like the RCV1
26 :     set) was made.
27 :    
28 :     * R/textdocument.R: Set up an S4 class for text documents. Wrote
29 :     some accessor functions.
30 :    
31 :     * data/newsitem.xml: Added this XML file for testing purposes. It
32 :     contains a single news item from the Reuters Corpus Volume 1
33 :     (RCV1) XML set.
34 :    
35 : feinerer 16 2005-10-07 Ingo Feinerer <h0125130@wu-wien.ac.at>
36 :    
37 :     * R/textmatrix.R (textmatrix): Removed the transpose of the original
38 :     textmatrix as k-means clustering provided by R (kmeans) now works on
39 :     this textmatrix. The result is a k-means text clustering with a
40 :     similarity measure based upon word frequences.
41 :    
42 :     2005-10-05 Ingo Feinerer <h0125130@wu-wien.ac.at>
43 :    
44 :     * R/textmatrix.R: Adapted the preprocessing code from the R
45 :     package "lsa" written by Fridolin Wild to build a document text matrix.
46 :    
47 :     2005-10-02 Ingo Feinerer <h0125130@wu-wien.ac.at>
48 :    
49 :     * Set up the R Text Mining Package infrastructure.

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