How can I find the difference between adjacent elements while ignoring the first value?

2021 2 15
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I have the following column vector.
data = randperm(100,15)';
Is there a way of using the "diff" function to find the difference between adjacent elements while ignoring the first one? In other words, I would like the calculation to start with elements 2 and 3 then 4 and 5 etc.
Appreciate the help! Thanks.

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Stephen23
Stephen23 2021-2-15

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diff(data(2:end))

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Benjamin Horsley
Benjamin Horsley 2021-2-15
As easy as that! Thank you. Safe to say I'm still very much learning!
Benjamin Horsley
Benjamin Horsley 2021-2-15
编辑：Benjamin Horsley 2021-2-15
Sorry, just a quick follow-up question to this, @Stephen Cobeldick. If my vector has 14 elements, is there a way of returning only 7 difference values instead of 13? I mean to say I only want to find the difference between element 1 and 2 then skip ahead to elements 3 and 4 (skipping the difference between elements 2 and 3). Hope that makes sense. Again, really appreciate the feedback.
Stephen23
Stephen23 2021-2-15
编辑：Stephen23 2021-2-15
Where vec is your vector of 14 elements:
out = vec(2:2:end)-vec(1:2:end)

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