Using GP 4.2 with histogram and datastrings sup****t
I have a simple histogram with datastring xtic labels. I would like to
add a line to show a median value and I have a third data column this
value. I can't work out how to plot this line on the existing
histogram?:
* I don't want to use "set arrow" as this isn't a general solution
which takes the median from the datafile
* I tried multiplot but this isn't really what I want as it draws an
entirely new graph with the x-axis in a different place because it
doesn't have datastring labels. The line is there on the new (line
style) graph but the y-axis is differently scaled so the line is in
the wrong place.
There must be a way to draw a line on a histogram from data points?
