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function similar to count

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SSG_newbiecoder
SSG_newbiecoder 2017-12-26
评论： SSG_newbiecoder 2017-12-26
Is there any function similar to count that can be used in an array of 1's,-1's and 0's to count the number of 1's present in a particular range?

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Birdman
Birdman 2017-12-26
One approach:
A=randi([-1 1],1,100);%random data for -1,0 and 1
cnt=sum(ismember(A,1));%counts the number of 1 in array A

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