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PRINCIPAL_COMPONENTS -- clustering

MATRIX_FILE = <string:1> 'family.mat' the filename of the pairwise distance matrix
FILE = <string:1> 'default' output file

Description:
This command calculates principal components clustering for the input matrix of pairwise distances. This matrix must be in the PHYLIP format and can be produced by the ID_TABLE, SEQUENCE_COMPARISON, or COMPARE commands.

The projected coordinates $p$ and $q$ are written to file FILE. The output file can be used with ASGL to produce a principal components plot.

This command is useful for deciding about which known 3D structures are to be used as templates for comparative modeling.

Example: See ID_TABLE command.



Ben Webb 2004-10-04