Extracting data points (with specific coordinates) from plot

Ali

2023 1 23

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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 2023-1-23

编辑：Matt J 2023-1-23

在 MATLAB Online 中打开

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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