Bo's 'Hist' is new to me. I substituted 'Bar' for 'Hist' and got the same result, though. An alternative that could be adapted, perhaps, is at the following link. It's strength, if there is one, is to plot histograms with varying x buckets, but it would have to be adapted to fill in the buckets with colors.
https://code.jsoftware.com/wiki/User:Brian_Schott/Histogram -- (B=) ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
