hold data from a regular plot to a semilog plot
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I hope this one is easy: Imagine I already have figure 100 in a plot containing data, and I want to add more curves while making the plot in a semilogy scale. let's say the data I have can be produced by: figure(100) plot([0,1,2],[900,1200,1000]) (and we can't change that)
I am now using hold on semilogy(0,1000) hold off but the plot remains normal (due to hold on I'm assuming)
in order to have my complete set of data as it would be traced by figure(100) semilogy([0,0,1,2],[1000,900,1200,1000])
I tried using reset, plotnow but I can't seem to access the axes handle's properties in order to make them semilog.
Thank you, N.
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Accepted Answer
Matt Fig
on 15 Mar 2011
It is not clear to me whether you want to have two different curves, one in linear scale and the other in logarithmic scale or whether you want to change one existing plot to have the y-axis be log scale. If the latter, you can do:
set(gca,'yscale','log')
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