How can I count how many numbers are different from '-1'?
3 ビュー (過去 30 日間)
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Hi,
Example: Suppose we a have a matrix A
A= [1 -1 0 -1 0 0 -1 0 -1 -1 -1 -1 -1 -1 -1]
How can I count how many numbers are different from '-1'?
2 件のコメント
Shubhashree Bal
2019 年 11 月 1 日
Search for how many negative number exists in A. than subtract that from length of array. Or Write a loop for how many positive number exists in array.
Code attached below:
Close all;
clear all;
A= [1 -1 0 -1 0 0 -1 0 -1 -1 -1 -1 -1 -1 -1];
count = 0;
for i = 1: length(A)
if(A(i)>=0)
count = count +1;
end
end
回答 (2 件)
Pedro Martinez
2019 年 11 月 1 日
Total = sum (A==-1);
1 件のコメント
Walter Roberson
2019 年 11 月 5 日
That gives the number of rows of -1 but the user wants the number of columns that are not -1
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