I want to superimpose histograms from three populations onto the same graph,
changing the shading of the bars for each population. After consulting the
help files and the archives I cannot find out how to do this (seemly) simple
graph. To be clear, I want
- a single x axis (from -3 to 18)
- three groups of bars forming the histograms of each population (they will
not overlap much, but this is a detail)
- the bars from each histogram having different shadings or other visually
distinguishing features.
Can anyone explain how to do this?
Thanks.
Bill Shipley
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