how to calculate element distance in a vector?

hi guys i want to calculate the difference between vector element as [0 1 1 0 1 1 0] which should give 0-1=1,1-1=0,1-0=1,0-1=1,1-1=0,1-0=1,,, and the sum answer should be 4. how to do this. and what if there's 12 vector within one matrix.

Answer 1

[W. Owen Brimijoin]

It looks like you want the sum of the absolute value of the differential of those numbers? You get your first answer like this:

abs_diff = abs(diff([0 1 1 0 1 1 0]))

You would then sum these values. If all you want is the final answer, this is how to do it:

answer = sum(abs(diff([0 1 1 0 1 1 0])))

[sara]

how to run this code for matrix as : M= [1 0 1 1 0;1 0 1 1 1;0 1 0 0 0]; the matrix may come in 20 rows.

[W. Owen Brimijoin]

In order to answer this you would need to explain what you are looking for: one number per row, one per column, a giant sum (and if so in what dimension)?

[sara]

what i'm looking for is the number per row, answer :3 2 2 for the above matrix. and i need it to calculate to the end of the rows.

Answer 2

[W. Owen Brimijoin]

Try this:

answer = sum((abs(diff(M,1,2))),2)

[sara]

yes,, it works,, thank you very much,, you save my day...