How to define the upper limit of y-scale in a log plot
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Hello, i need to plot some graphs of some curves in logarithmic scale on the y-axis and the y-scale must range from 0 to 10^-5. I want to superpose the curves on the same image, thats why the scale must be the same for all plots. I'm currently using semilogy to get a log scale, but the range is completely messed up. I've tryed using
set(gca,'yscale','log')
but again, i don't have control on the upper limits of the y-scale. What can i use to resolve this? Thanks.
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dpb
2015-9-4
You don't give any data nor attach a plot to see the issue specifically, but you set fixed axes limits on log axes the same way as you do for linear ones--use ylim (or set for low-level control or in conjunction with other properties on the axes in one call).
Simple example--
y=[10*rand(10,1), 1E5*rand(10,1)];
hAx=semilogy(y);
ylim([1,1E6])
ylim([.5,4E5])
Salt to suit for your particular case...
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Heyang Qin
2019-1-12
The problem of cannot set axis range such as ylim or xlim in log scale is becaue you cannot set log value to 0. Any value other than 0 will work.
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