SDP_FSEL (Low-level) Feature selection

   PP=SDP_FSEL(DATA,IND,LAB)
   PP=SDP_FSEL(INSIZE,IND,LAB)

 INPUT
  DATA     SDDATA object
  IND      feature indices
  INSIZE   input size
  LAB      feature labels of resulting subset

 OUTPUT
  PP       pipeline object

 DESCRIPTION
 SDP_FSEL is a low-level feature selection action. Use high-level
 SDFEATSEL function for manual and automatic feature selection.
 SDP_FSEL passes to the output only the features with indices IND of the
 input DATA with INSIZE features.  This action is useful in situations
 where the custom application is presented with a precomputed set of
 features in a data buffer but only the subset should be employed by a
 classifier.

 READ MORE
 http://perclass.com/doc/guide/dimensionality_reduction.html#featsel

 SEE ALSO
 SDFEATSEL