- generate a difference summary of two .css files
[cssfile 1] [cssfile 2]
This man page is taken from an older CRM114 version. It is provided as a
convenience to Debian users and may not be up-to-date. If you would like to
update it, please send appropriate patches to the Debian bug tracking system.
is a special-purpose utility to measure the distance between the
classes represented by cssfile1 and cssfile2. The summary result output tells
how many features were in each of the .css files, how many features appeared
in both (balanced overlap), how many features appeared only in one (or
unbalanced overlaps), and how often the feature set of one .css file strictly
dominated the feature set of another .css file. This set of metrics provides
an intuitive way to determine the similarity (or dissimilarity) of two classes
represented as .css files. When using the CRM114 spamfilter, it can be used to
find out how easy it will be for CRM114 to differentiate spam from nonspam
with your .css files. cssdiff
prints a report like e.g.
Sparse spectra file spam.css has 1048577 bins total
Sparse spectra file nonspam.css has 1048577 bins total
File 1 total features : 1605968
File 2 total features : 1045152
Similarities between files : 142039
Differences between files : 1279964
File 1 dominates file 2 : 1463929
File 2 dominates file 1 : 903113
Note that in this case there's a big difference between the two files; in this
case there are about 10 times as many differences between the two files as
there are similarities.
There are no options to cssdiff.
Note that cssdiff
as of version 20040816 is NOT capable of dealing with
the CRM114 Winnow classifier's floating-point .cow files. Worse,
is unaware of it's shortcomings, and will try anyway. The only
recourse is to be aware of this issue and not use cssdiff
classifier floating point .cow format files.
This manpage: $Id: cssdiff.azm,v 1.5 2004/08/19 09:06:44 vanbaal Exp $ This
manpage describes cssdiff as shipped with crm114 version
William S. Yerazunis. Manpage typesetting by Joost van Baal and Shalendra
Copyright (C) 2001, 2002, 2003, 2004 William S. Yerazunis. This is free
software, copyrighted under the FSF's GPL. There is NO warranty; not even for
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the file COPYING for