yh=`echo $center $WUP | awk '{ print $1+$2 }'`
echo "generating gnuplot file ($center, $yl, $yh, $ly) ..."
cat > $1/ksl_plot.gpi <<!
yh=`echo $center $WUP | awk '{ print $1+$2 }'`
echo "generating gnuplot file ($center, $yl, $yh, $ly) ..."
cat > $1/ksl_plot.gpi <<!