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Difference between two successive elements in a matrix

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AJA
AJA 2020-12-6
评论： Rik 2020-12-6
For example, I have a 100 x 3 matrix A
A =
[1 0 542
1 5 21
1 10 125
1 15 6245
1 20 2678
1 50 580
1 55 1205
1 60 196
… … ...]
I need to find the difference between successive rows in the second column. For example 5-0=5 for the first two rows of the second column and 10-5=5 for the second and third rows o the second column. If the difference is not 5, I need to store that in a counter. I need to count all the rows with difference of more than 5 per column. How do I do that?

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回答（1 个）

dpb
dpb 2020-12-6
D=diff(A(:,2));
ix=find(D>5)+1;

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