I'd like to plot my data and indicate where the instrument I used actually actually should truncate those data. My idea is to have y values from zero to a certain maximum and to draw a red line from zero to the lower limit, then to continue with this line colored in black, and finally end this very line colored red from the upper limit to the maximum of my data.
How is this to accomplish?
A second problem for me is probably trivial for more experienced users: How to adjust the size of x- & y-labels (using subplot)?
I should mention that I'm stuck with version 0.71 for a while ...