How to calculate standard deviation of a certain number of points?

[Douglas_kilo]

Hi, I have an application that I acquire force signals and pu then on a array.

I need to calculate the standard deviation and the mean each a certain number of points, 1000 for example.

I'm having problems with this, if you can help me I'd be thankful.

Thanks

Douglas

[crossrulz]

If you have the Full Development version of LabVIEW, look into the Standard Deviation PtByPt VI.

[P@Anand]

You can also use Std Deviation and Variance.vi if you have the input as an array

[Douglas_kilo]

Hey thank you, but it don't solve my problem.

I have a graph of force, generating 1000 points per second, for example, and I have to calculate the standard deviation for each 100 points, for example, and display it on a graph.

If I have an array of 50k points, the array of standard deviation should have 500 points.

I don't know if you could understand me, but any help would be great.

I attach the vi to help you visualize (don't mind the mess, I'm working on it).

Thank you

[crossrulz · Accepted solution]

So you need something like this?

[Douglas_kilo]

Hey, thank you, I finally did it and it works perfectly!

Thank you so much!!!