how to count number of transitions

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sakshi Garg
sakshi Garg 2015-4-16
评论： Star Strider 2015-4-16
i want to count the number of transitions in a 1-by-n binary array.
how to do it?
n does not exceed 10.

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回答（1 个）

Star Strider
Star Strider 2015-4-16
If you want to count both the positive [0 1] and negative [1 0] transitions, the easiest way is likely:
A = randi([0 1], 1, 25);
T = sum(diff(A)~=0);
If you want the positive and negative transitions separately:
PT = sum(diff(A)>0);
NT = sum(diff(A)<0);

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