Error using horzcat:: Dimensions of array being concentenated are not consistent

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Mark Sc 2021-3-21

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编辑： Stephan 2021-3-21

Hi all,

I am running the following but I got that error Dimensions of arrays being concatenated are not consistent.

clearvars;
clc;
S=[.2046e17 .1381e17 .9249e17;.1679e17 .2385e17 1.2332e17;-2.5339 2.5339 2.7582;2.5339 -2.5339 2.75]
m_idx = [min(S(S>0)), find(S==min(S(S>0)))]

I only need min value and index of such value (can I have the first lowest possible value with it's index ??

Any help

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Answer 1

Image Analyst 2021-3-21

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This is a FAQ, so please read the FAQ document. It will tell you in more detail everything we'd tell you.

https://matlab.fandom.com/wiki/FAQ#.22Error_using_horzcat._Dimensions_of_arrays_being_concatenated_are_not_consistent..22

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Answer 2

Stephan 2021-3-21

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编辑：Stephan 2021-3-21

在 MATLAB Online 中打开

There are 2 times the same values at different indices. To get only the first occourence:

S=[.2046e17 .1381e17 .9249e17;.1679e17 .2385e17 1.2332e17;-2.5339 2.5339 2.7582;2.5339 -2.5339 2.75]
m_idx = [min(S(S>0)), find(S==min(S(S>0)),1)]

or like i commented in your question before use a function to get all indices where the positive minimum value occours:

S=[.2046e17 .1381e17 .9249e17;.1679e17 .2385e17 1.2332e17;-2.5339 2.5339 2.7582;2.5339 -2.5339 2.75]
[m, idx] = myFun(S)
function [m, idx] = myFun(S)
    m = min(S(S>0));
    idx =  find(S==min(S(S>0)));
end