perClass | Can’t change the cross-validation strategy in sdcrossval

Can’t change the cross-validation strategy in sdcrossval

Mathieu

Posted: 08 March 2010 05:05 PM

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Newbie

Total Posts: 20

Joined 2010-02-18

Hi,

In PRSD Studio 2.0.5, I get the following error when I tried the example in the documentation about the different cross-validation strategies:

>> load fruit; pd= sdgauss*sddecide; [r2,e2]=sdcrossval(pd,a,'folds',2,'method','random');
??? Undefined function or method 'getstate' for input arguments of type 'sdppl'.

Error in ==> C:\Program Files\MATLAB\R2009b\toolbox\prsd_toolbox\private\sde_randomization.p>sde_randomization at 19

Error in ==> C:\Program Files\MATLAB\R2009b\toolbox\prsd_toolbox\sdcrossval.p>sdcrossval at 120

Thank you for your help.

Mathieu

[ Edited: 08 March 2010 05:18 PM by Mathieu]

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pavel

Posted: 08 March 2010 08:59 PM

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Administrator

Total Posts: 236

Joined 2008-04-26

Hi Mathieu,

yes, this is a bug. In 2.0.5 only the rotation cross-validation scheme was supported. The randomization and leave-one-out code was not ported from 1.3 release.

Please upgrade to the latest PRSD Studio release (2.0.9). All cross-validation types are now supported. There is also an updated chapter in the documentation providing examples on cross-validation: http://perclass.com/doc/guide/evaluation.html

Pavel

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Mathieu

Posted: 08 March 2010 09:26 PM

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Total Posts: 20

Joined 2010-02-18

Thank you Pavel, I will install the upgrade.

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