Ted, I have just attached the patch. Tell me if you have any problem with it. Many thanks for your help,
Nicolas On Thu, Jul 22, 2010 at 9:54 PM, Ted Dunning <[email protected]> wrote: > Nicolas, > > I think you ahve to attach the patch as a file. > > On Thu, Jul 22, 2010 at 12:52 PM, Nicolas Maillot (JIRA) > <[email protected]>wrote: > >> >> [ >> https://issues.apache.org/jira/browse/MAHOUT-446?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel] >> >> Nicolas Maillot updated MAHOUT-446: >> ----------------------------------- >> >> Status: Patch Available (was: Open) >> >> > Mahalanobis Distance + Singular Value Decomposition >> > --------------------------------------------------- >> > >> > Key: MAHOUT-446 >> > URL: https://issues.apache.org/jira/browse/MAHOUT-446 >> > Project: Mahout >> > Issue Type: New Feature >> > Components: Classification >> > Affects Versions: 0.4 >> > Environment: GNU/Linux Ubuntu Lucid Lynx running in VMWare fusion >> 2.0.7. >> > Reporter: Nicolas Maillot >> > Original Estimate: 0h >> > Remaining Estimate: 0h >> > >> > This patch contains an implementation of the Mahalanobis distance + a >> unit test. >> > As explained in wikipedia ( >> http://en.wikipedia.org/wiki/Mahalanobis_distance) , it is a useful way >> of determining similarity of an unknown sample set to a known one. It >> differs from Euclidean distance in that it takes into account the >> correlations of the data set and is scale-invariant. >> > Also contained in the patch: >> > -A port of the SingularValueDecomposition Class to the Matrix data >> structure. >> > -An embryonic port of the matrix.linalg Algebra class to the >> Matrix/Vector data structure. >> >> -- >> This message is automatically generated by JIRA. >> - >> You can reply to this email to add a comment to the issue online. >> >> >
