Probably this was asked already: how about setting a variable for a color
of the line of an array? That would make data comparison quite easy (when
several arrays are on the same graph).
Of course it might be possible to do this with data structures or with
gem, but it would be much easier to perform it with only one variable. I'm
not a programmer, but this doesn't seem to be a complex thing to do,
basically opening up a variable which was so far closed.
best,
João Pais