[pymvpa] Selecting samples from a dataset

[James M. Hughes]

This is a silly question from someone who should know the answer  
already, but the documentation is pretty unclear on this point:

if we select samples from a dataset according to labels,

e.g.,

samples = data.select(labels=[2,4,6]),

will the returned samples be grouped by label?

Also, will they be returned in groups in the order of label that they  
were given?  Or are they returned in sorted order of increasing label?

Thanks,
James.