Getting lowest postive number in array with it's index

Question

Mark Sc 2021-3-21

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https://ww2.mathworks.cn/matlabcentral/answers/779082-getting-lowest-postive-number-in-array-with-it-s-index

评论： Stephan 2021-3-21

采纳的回答： Stephan

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Hi,

I am trying to get lowest postive number from array , and it's index,

I got the correct lowest postive number but due to introducing of greater than sign >, the indicies numbering changed, can anyone tell me how could I obtain lowest postive number with keeping and getting correct index...

I attach the code below... (Please remember it's a part from a code, and i need to get the values as written below)

clearvars;
clc;
S=[-6.3e7 -0.0001e7 inf;5.2545 -.2996e7 inf];
[m,idx]=min(S(S(:)>0));               % THE RESULT IS CORRECT BUT INDEX IS WRONG ... INDEX SHOULD BE 2 
% I UNDERSTAND NOW THE INDEX IS CHANGED AS I INTRODUCED >0 BUT I WOULD LIKE TO GET THE INDEX FROM S(:) NORMAL 

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Answer 1

Stephan 2021-3-21

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https://ww2.mathworks.cn/matlabcentral/answers/779082-getting-lowest-postive-number-in-array-with-it-s-index#answer_653807

编辑：Stephan 2021-3-21

在 MATLAB Online 中打开

S=[-6.3e7 -0.0001e7 inf;5.2545 -.2996e7 inf]
m_idx = [min(S(S>0)), find(S==min(S(S>0)))]

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Mark Sc 2021-3-21

@Stephan

Thanks for your answer...

It works, however, I need to have the output as two separate varaibales,

any suggestions??

I would use

min_val=m_idx(1);

idx=m_idx(2)

but if you have a direct way to obtain such thing, please share

but anyway.. thank you so much

Stephan 2021-3-21

在 MATLAB Online 中打开

S=[-6.3e7 -0.0001e7 inf;5.2545 -.2996e7 inf]
[m, idx] = myFun(S)
function [m, idx] = myFun(S)
    m = min(S(S>0));
    idx =  find(S==min(S(S>0)));
end