logx, logy with independant Y axis

gmiddleton · Post by **gmiddleton** » Wed Mar 05, 2008 12:36 pm

I would like to plot two curves with independant Y axis where the first curve is LogY/LogX and the second curve is LinearY/LogX. I can't make it happen. When I select LogY/LogX I get LinearY/LinearX. (I am using DPlotJr from VB.NET)

Post by **DPlotAdmin** » Wed Mar 05, 2008 2:14 pm

I would like to plot two curves with independant Y axis where the first curve is LogY/LogX and the second curve is LinearY/LogX. I can't make it happen.

Can't be done - at least not without some trickery. You could plot log(y) instead of y, then use Text>X,Y Labels to substitute 10^Y for the labels on the right side of the plot. I'm not suggesting this as a solution as it is a bit involved. But if you're in a hurry to produce a plot like that then this will work (at least for whole powers of 10. There's no good way to draw the intermediate lines that you'd get on a log scale.)