count the number of ones in each row
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hi, i have the below N by N matrix and i want to count the number of ones in each row , anyone can help ?
0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 1 1 1
0 0 0 0 1 0 0 0 0 0
0 0 0 1 0 0 0 0 0 0
0 0 0 0 0 0 1 0 0 0
0 0 0 0 0 1 0 0 0 0
0 0 1 0 0 0 0 0 1 1
0 0 1 0 0 0 0 1 0 0
0 0 1 0 0 0 0 1 0 0
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KSSV
2022 年 6 月 6 日
編集済み: KSSV
2022 年 6 月 6 日
A = [0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 1 1 1
0 0 0 0 1 0 0 0 0 0
0 0 0 1 0 0 0 0 0 0
0 0 0 0 0 0 1 0 0 0
0 0 0 0 0 1 0 0 0 0
0 0 1 0 0 0 0 0 1 1
0 0 1 0 0 0 0 1 0 0
0 0 1 0 0 0 0 1 0 0] ;
[m,n] = size(A) ;
C = zeros(m,1) ;
for i = 1:m
C(i) = nnz(A(i,:)) ;
end
C
Or Simply:
C = sum(A==1,2)
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