which I have created by using the Octave pcolor and barh functions using 3
subplots with the subplot x axes scaled to look as if the figure were one
plot. However, this approach is unsatisfactory as I cannot zoom or pan
across it as I would be able to if it were actually one plot.
How can I plot one background figure using pcolor and then add multiple y
axes at different points along the x axis to plot the horizontal histograms