[pymvpa] Sensitivity map with RFE?

Yaroslav Halchenko debian at onerussian.com
Wed Jul 17 18:49:41 UTC 2013


sorry about the delay -- and thanks for buzzing back.

I have tried your snippet with 2.2.0 version as available in Debian --
reproduced your failure.  But it works with the current master of PyMVPA, so we
fixed something relevant since the release -- could you give it a try with your
data?  let us know if you need instructions (but then tell us about your system
-- output of mvpa2.wtf() should be sufficient ;) )

another BUT:
it seems that your construct hits previously reported and presumably
"fixed" issue:
https://github.com/PyMVPA/PyMVPA/pull/53

so whenever you check your code, please check -- is your senssvm
"degenerate" in that all of its samples are the same, e.g. in my case on
a dummy dataset

*(Pydb) print senssvm.samples
[[ 2.01502448  2.77870027  0.73660355  2.43673417  0.83915333  0.30925885]
 [ 2.01502448  2.77870027  0.73660355  2.43673417  0.83915333  0.30925885]
 [ 2.01502448  2.77870027  0.73660355  2.43673417  0.83915333  0.30925885]
 [ 2.01502448  2.77870027  0.73660355  2.43673417  0.83915333  0.30925885]]


On Wed, 17 Jul 2013, marco tettamanti wrote:

> Dear all,
> I apologize for the repost, but I didn't get any reply and I am
> pretty stuck with this issue.
> Is there anybody that could kindly provide any further advice?

> Thank you and very best wishes,
> Marco
-- 
Yaroslav O. Halchenko, Ph.D.
http://neuro.debian.net http://www.pymvpa.org http://www.fail2ban.org
Senior Research Associate,     Psychological and Brain Sciences Dept.
Dartmouth College, 419 Moore Hall, Hinman Box 6207, Hanover, NH 03755
Phone: +1 (603) 646-9834                       Fax: +1 (603) 646-1419
WWW:   http://www.linkedin.com/in/yarik        



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