$ DATA=CONTOUR 

# This one is perfect 

# Dataset/plotset options
% toplabel   = "Default Contour Lines" 
% subtitle   = "RGB colorscale, 32 colors"
% contfill
% nsteps=34
% vxmin=0.5 vxmax=1.0

# Define the headers
% xmin = 0.1  xmax = 2.1
% ymin = 0.0  ymax = 1.0
% nx   = 5
% ny   = 3
0.0 0.0 0.0 0.0 0.0
0.0 1.0 0.0 1.0 0.0
0.0 0.0 1.0 0.0 0.0

$ QUIT