Show only two y values in a plot

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Hussein Kokash
Hussein Kokash 2022-12-2
评论： Hussein Kokash 2022-12-2
Hello all,
Any possible way to show only two value (0.02 and 0.04) for the y-axis, because the other values are just noise.
This is what I use for now to plot:
figure()
plot(time,wavelength,'b-x', 'LineWidth',2)
grid
axis tight
xlabel('Time')
ylabel('Wavelength')
hold on
Thank you!
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Dyuman Joshi
Dyuman Joshi 2022-12-2
Alright, did my code work? the one with ismembertol() ?
Hussein Kokash
Hussein Kokash 2022-12-2
Hello Dyuman Joshi,
I changed the 1e-15 to 1e-10 in idx=ismembertol(wavelength,[0.033333333333333, 0.2],1e-15); and now it is working.
Thank you so much! and sorry for the trouble!
Have a great day!

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回答（1 个）

KSSV
KSSV 2022-12-2
tol = 10^-3 ; % fix your tolerance
idx = abs(wavelength-0.02)<=tol | abs(wavelength-0.04)<=tol ;
plot(time(idx),wavelength(idx),'+r')

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