From a large single column set of data, how can I get the differences between data points above and below each other?

I have this problem whereby i need to find the difference between a single column set of data. For example, datapoint1-datapoint2...datapoint2-datapoint3...datapoint3-datapoint4 and so on for 170 data points. I want to find a way in which i can display these differences in a vector without having to tediously write every single data point subtraction.

Answer 1

[Andrei Bobrov]

datapoint - your vector

out = -diff(datapoint);

[Bob Marley]

doesn't help me sorry

[Andrei Bobrov]

corrected :)

[Jan]

@Bob: Please do not only claim, that it does not help you. It would be more useful if you explain, which problems you have.

Answer 2

[Jan]

While I prefer Andrei's suggestion (why does it not help you?), what about this:

result = datapoint(1:end - 1) - datapoint(2:end)