Extracting data points (with specific coordinates) from plot

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Ali
Ali 2023-1-23
编辑： Matt J 2023-1-23
Hi,
I have plotted a large number of data. Now from this plot, I want to extract data points that their Y coordinate is either 40 or very close to 40 (say closer than 0.01).
Anyone know how I can do that?

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回答（1 个）

Matt J
Matt J 2023-1-23
编辑：Matt J 2023-1-23
Ran in:
For example,
Y=40+0.04*linspace(-1,1,10)
Y = 1×10
39.9600 39.9689 39.9778 39.9867 39.9956 40.0044 40.0133 40.0222 40.0311 40.0400
data=10*(1:numel(Y))
data = 1×10
10 20 30 40 50 60 70 80 90 100
data_Extracted = data(abs(Y-40)<=0.01)
data_Extracted = 1×2
50 60

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