clean

           removes undefined datapoints

           cafe

           clean, [,subgroup][,group]

           subgroup - (optional) The data set (subgroup) which should
                      be cleaned from undefined datapoints.
                      This can be either the subgroup number or the
                      file name representing the data set. It is
                      possible to delete more than
                      one subgroup, either with numbers in brackets
                      ([]) separated with ",";  or denoting filenames
                      with wildcards ("*").
                      Default is the first subgroup in current used
                      group.
           group    - (optional) The data group which should be cleaned.
                      The default may be changed with the command
                      chgrp. Must be in range [0..29].

           Removes irrecoverable undefined (ignored) datapoints (!!)

           > ignore, y gt 200
           > clean
                 -> remove all datapoints whose y-value is greater
                 than 200

           $Id: cafe_clean.pro,v 1.8 2004/05/27 07:33:38 goehler Exp $

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