How to remove the mean from a data

I have 90000 speed data, and I want to make each one minus the mean, how to get that?

a=speed;

aver=mean(a);

then what's the next?

[Mathieu NOE]

hello

you can simply do

a = a - mean(a);

NB : you can also use the detrend function

[Xuefei Sun]

That's it. Thank you!

[Image Analyst]

@Mathieu NOE Please move your answer down to the Answer section below.

[Mathieu NOE]

will do... tx

Answer 1

[Mathieu NOE]

hello

you can simply do

a = a - mean(a);

NB : you can also use the detrend function