NAME
     Level - set contouring level of spectra

SYNOPSIS
     Level expr

DESCRIPTION
     Set the minimal level of all selected spectra as
     fraction of the maximal value. For regions, the given
     value is automatically clamped at the segmentation
     level, so that a very small value can be given for
     displaying the whole region.

EXAMPLE
     Level 0.001

SEE ALSO
     Resolution, Expand, Scale, StyleSpec

DATE
     960913
