AttributeError using pyBrain _splitWithPortion - object type changed?

Question

I\'m testing out pybrain following the basic classification tutorial here and a different take on it with some more realistic data here. However I receive this error when applyi

Answer 1

I had the same problem. I added the following code to make it work on my machine.

tstdata_temp, trndata_temp = alldata.splitWithProportion(0.25)

tstdata = ClassificationDataSet(2, 1, nb_classes=3)
for n in xrange(0, tstdata_temp.getLength()):
    tstdata.addSample( tstdata_temp.getSample(n)[0], tstdata_temp.getSample(n)[1] )

trndata = ClassificationDataSet(2, 1, nb_classes=3)
for n in xrange(0, trndata_temp.getLength()):
    trndata.addSample( trndata_temp.getSample(n)[0], trndata_temp.getSample(n)[1] )

This converts tstdata and trndata back to the ClassificationDataSet type.