Allow axis to be cut if range exceeds data

[lkittock]

I have a bar chart that has Y-axis values that range from 0 - 1. However often times if I have many bars they are all very short (e.g. 100 bars they average 0.01 in height).

I would like a feature that allows me to show a cut mark on the axis if the specified range is quite a bit larger than the highest data value. Something similar to what we see here:

http://www.phyast.pitt.edu/~zov1/gnuplot/png/broken3.png