compare two vector with considering Nan

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mingcheng nie 2022-12-12

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https://ww2.mathworks.cn/matlabcentral/answers/1876137-compare-two-vector-with-considering-nan

回答： Voss 2022-12-12

Hi there,

Is there any simple way to do the following requirements:

If I want to compare two vectors, e.g., vector A and B. They have same length. First, if the value of any entry in A/B is greater than 1 or smaller than 0, set it into Nan. Then I want to get the maximum value between A and B, set the resultant as C. If any entry in A or B is Nan, then corresponding entry in C is Nan. Finally, I want to find the minimum one in C without considering Nan.

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Answer 1

Voss 2022-12-12

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https://ww2.mathworks.cn/matlabcentral/answers/1876137-compare-two-vector-with-considering-nan#answer_1125812

在 MATLAB Online 中打开

% if the value of any entry in A/B is greater than 1
% or smaller than 0, set it into Nan:
A(A<0 | A>1) = NaN;
B(B<0 | B>1) = NaN;
% get the maximum value between A and B, set the resultant as C:
C = max(A,B);
% If any entry in A or B is Nan, then corresponding entry in C is Nan:
C(isnan(A) | isnan(B)) = NaN;
% find the minimum one in C without considering Nan:
result = min(C);