I want to compare two arrays and check that which value is missing in second array as compared to first one?

Question

Aqeel Awan 2021-7-4

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/871413-i-want-to-compare-two-arrays-and-check-that-which-value-is-missing-in-second-array-as-compared-to-fi

评论： Aqeel Awan 2021-7-4

A=[ 0 1 1 ;
    1 1 0 ];
target=[1 2 3 4];
[m,n]=size(A);
c1=0;cover1=[];sum_coord=[];sss=0;
for i=1:m    
    cc=0;t_coordinate=[];
    for j=1:n          
            if A(i,j)==1            
                cc=cc+1;
                t_coordinate(cc,:)=j;
                sss=sss+1;
                sum_coord(sss,:)=t_coordinate(cc,:);
            end     
    end    
    display(t_coordinate)
end
sum_coord=sort(sum_coord);
sum_coord=unique(sum_coord);
display(sum_coord)

first array is "Target" and second is "sum_coord"....

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Answer 1

Rik 2021-7-4

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编辑：Rik 2021-7-4

You should avoid variable names like sum, as that will prevent you from using the sum function.

Your question sounds like you need the ismember function. However, it is unclear how your code relates to the question in the title.

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Rik 2021-7-4

在 MATLAB Online 中打开

Did you try to google the documentation for the ismember function?

A=[ 0 1 1 ;
    1 1 0 ];
target=[1 2 3 4];
[m,n]=size(A);
c1=0;cover1=[];sum_coord=[];sss=0;
for i=1:m    
    cc=0;t_coordinate=[];
    for j=1:n          
        if A(i,j)==1            
            cc=cc+1;
            t_coordinate(cc,:)=j;
            sss=sss+1;
            sum_coord(sss,:)=t_coordinate(cc,:);
        end     
    end    
end
sum_coord=sort(sum_coord);
sum_coord=unique(sum_coord);
disp(sum_coord)
     1
     2
     3
L=ismember(target,sum_coord);
ismissing=target( ~L );
disp(ismissing)
     4