I 2-D plot of y with specific x

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Eric Elharer
Eric Elharer 2018-8-11
评论： Star Strider 2018-8-11
Hi trying to pot PSNR values at specific exposur time psnr_val=[22 24 29 32 33] exp_t =[0.01 0.1 1 10 100]

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Star Strider
Star Strider 2018-8-11
I am guessing here as to what you want.
Try this:
psnr_val=[22 24 29 32 33];
exp_t =[0.01 0.1 1 10 100];
figure
semilogx(exp_t, psnr_val)
grid
xlabel('exp\_t')
ylabel('psnr\_val')
Use plot instead of semilogx if you want a linear x-scale.
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Eric Elharer
Eric Elharer 2018-8-11
and what if I want use vaues of x which are not logarithmic scale is used for t-axis such as exp_t =[0.1 20 150 400 4000]
Star Strider
Star Strider 2018-8-11
As always, my pleasure.
If your x values are not logarithmic, use either plot or semilogx, depending on the result you want.
Please feel free to experiment.

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