else
result = getFilter().getCapabilities();
// only nominal and numeric classes allowed
classes = result.getClassCapabilities();
iter = classes.capabilities();
while (iter.hasNext()) {
capab = (Capability) iter.next();
if ( (capab != Capability.BINARY_CLASS)
&& (capab != Capability.NOMINAL_CLASS)
&& (capab != Capability.NUMERIC_CLASS)