taking mean at runtime

[ssddii]

hey!!
how can i take the mean of values coming at runtime ,should i have to save them and read from the file at runtime again and again?
plz help tnx

[JB]

Could you please explain more in detail what you are trying to do ?

[mikeporter]

Well, if you have an array of values, simply use te built-in mean function, If the data is coming in one point at a time, there is a "point-by-point" version of the mean that calculates a running average over time - in fact building such a thing used to be an exercise in the LV Basics course.

Mike...

[ssddii]

can u guys pls tell me where i can find this point by point mean function .
I am new to LV
tnx.

[mikeporter]

Right click on open space in the block diagram and select the following series of menus:

Functions / Analysis / Point By Point / Probability and Statistics PtByPt

They are all in there...

[AdnanZ]

I would highly recommend you to take LabVIEW courses. More information about the courses can be found at LabVIEW Courses.

[mikeporter]

Absolutely! Plus, but if I remember right from the last time I looked at the LV Basics class materials a point-by-point average VI is one of the first things that they have you build.

Mike...

[Robst]

Hi ssddii
:

In case you can´t take the course right now and you need to solve your problem now, I've attached an example on how to average values coming at runtime. I hope this helps you.



Robst.

Message Edited by Robst on 05-11-2007 10:44 AM

[altenbach]

If you just want the mean of all values acquired so far, just keep the sum in a shift register and divide by the count. 🙂

Here is a simple example:

Message Edited by altenbach on 05-11-2007 08:48 AM

[Robst]

Hello:

Actually altenbach's example is simpler, I just complicated myself doing all that logic with the iterations counter and the other stuff

Sorry, I made it quickly, but the idea is the same