LIMITS /BLANKING

        [GREG1\]LIMITS [Args . . .] /BLANKING Bval Eval

    Does not use data points such that abs(Y(i)-Bval) < Eval.  These  points
    act  as separators. Eval negative means no blanking value. Bval and Eval
    values default to those specified in SET BLANKING.

    Note that blanking applies to the intensities (Y) array only,  but  that
    the  blanked  values  in the Y array are used as a mask to compute the X
    limits.

    This option can not be used with /RGDATA.