[pymvpa] SplitClassifier error

Kimberly Zhou kyqzhou at gmail.com
Fri Jun 10 20:44:14 UTC 2011


Ah, thank you very much for that.
I am still trying RFE from http://www.pymvpa.org/featsel.html and I'm using
the code:

rfesvm_split = SplitClassifier(LinearCSVMC())
clf = \
            FeatureSelectionClassifier(
            clf = LinearCSVMC(),
            feature_selection = RFE(
                sensitivity_analyzer =
rfesvm_split.get_sensitivity_analyzer(),
                transfer_error=ConfusionBasedError(
                    rfesvm_split,
                    confusion_state="confusion"),
                feature_selector=FractionTailSelector(
                    0.2, mode='discard', tail='lower'),
                update_sensitivity=True),
                enable_states = ['feature_ids'])

 however, it cannot get past the confusion conditional attribute of
ConfusionBasedError...

ValueError: Conditional attribute confusion is not defined for classifier
SplitClassifier(combiner=None, space='targets')

Again, thank you very much in advance for any help/ideas, I really
appreciate it.

Best,
Kimberly
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