file,s,a,,,,File name
nbins,i,a,1,1,,Number of bins in histogram
z1,r,h,INDEF,,,Minimum histogram intensity
z2,r,h,INDEF,,,Maximum histogram intensity
listout,b,h,yes,,,List instead of plot histogram
device,s,h,"stdgraph",,,output graphics device
mode,s,h,ql,,,