I want to check that the Value of one array exist in another array, using function ?

Question

Aqeel Awan 2021-7-7

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/873513-i-want-to-check-that-the-value-of-one-array-exist-in-another-array-using-function

评论： Johannes Hougaard 2021-7-7

RemainingSensor=[1 2 4];
Cover=[1 3];
[m,n]=size(RemainingSensor);
for i=1:m
    for j=1:n
        r=RemainingSensor(i,j);
        a=funcCover(r);
         display(a);
    end
end
function c= funcCover(v)
[s,t]=size(Cover);
    for i1=1:s
        for j1=1:t
            k=Cover(i1,j1);
            if k==v
                c=k;
            end
        end
    end
end

first array is "RemainingSensor" and wants to check that the of this sensor existe in other array that is "Cover", how it is possible?

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Answer 1

Johannes Hougaard 2021-7-7

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在 MATLAB Online 中打开

It is possible using the function ismember

RemainingSensor=[1 2 4];
Cover=[1 3];
validsensors = ismember(RemainingSensor,Cover);

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Aqeel Awan 2021-7-7

Yeah, i know but I want to do this with above scenario, that i've uploaded

Johannes Hougaard 2021-7-7

在 MATLAB Online 中打开

Then I'd just use funcCover as a function calling ismember.

Regardless of what you do you'll have to have two inputs to your function, as your variable 'Cover' is never sent to your function funcCover as long as it only have one input.

RemainingSensor=[1 2 4];
Cover=[1 3];
[m,n]=size(RemainingSensor);
for i=1:m
    for j=1:n
        r=RemainingSensor(i,j);
        a=funcCover(r,Cover);
         display(a);
    end
end
function c= funcCover(v,W)
    if ismember(v,W)
        c = v;
    else
        c = 0;
    end
end