How to take values from a data corresponding to specific value
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I have a 400:2 txt. data. A value corresponding to 0.3 is 1.5373. How can I call the value of 1.5373 from the txt. data by putting 0.3 in the command board?
Please,anybody help me.
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KSSV
2020 年 6 月 8 日
Read about interp1. You can use interpolation and get it.
Also you can use logical indexing. But I prefer interp1. Let A be your 400*2 data.
x = A(:,1) ; y = A(:,2) ;
% Using interp1
xi = 0.3 ;
yi = intepr1(x,y,xi)
% using indices
xi = 0.3 ;
idx = find(abs(x-xi)<10^-3);
yi = x(idx) ;
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