Average multiple channels

[Giova]

Hello,

I have a set of 5 acquisitions data of Force and Acceleration in time domain.

I have to plot the five curves of acceleration vs force. (no problem for this)

Than I need to average the five acceleration data at increment of 1 N.

At the end I should have a column with Force ( 1, 2, 3,..... N) and a column of the averaged acceleration data.

Is it possible with Diadem or I have to use Excel?

Thanks

[Ralf_Mueller]

Hi Giova,

I think the "Average Channels" does exactly what you need:
Use this dialog box to calculate the arithmetic mean of the values of two or more data channels.

You can use it either interactively in the function group "Channel functions" in ANALYSIS or use it in a script using the command ChnAverage.

Hope this answers your question,
Ralf

[Giova]

It's not properly what I have to calculate

Consider that I have 5 couple of Force/Acceleration column and on the same row I have different value of Newton.

I need to average the five single acceleration data at increment of 1 N.

This means that for each increment of Newton I have to find the correspective value of acceleration and calculate the mean of the values.

In excel is quite simple, with Diadem....

[Brad_Turpin]

Hi Giova,

I would recommend either the "Channel Functions >> Linear Mapping" or the "Statistics >> Reducing Classification" ANALYSIS dialog, depending on exactly which X (Force) values you have-- the former for interpolation between measured values and the latter for turning multiple measured values into a single representative "1N" measured Y value, and so on.

Ask if you have further questions,

Brad Turpin
DIAdem Product Support Engineer
National Instruments