average of graph in diadem

[krakk1]

Hello!

We made experiments with Interfacial Shear Rheometer (ISR) and the results are the best in scatter graph view, but sometimes for the same x parameters we have more different Y values.

How can we make the average of one line, please?

See You ! 

Mr. Balazs 

[Brad_Turpin]

Hi Mr. Balazs,

You haven't really given me enough information to know the exact nature of your difficulty.  If you have N pairs of XY cartesian points where X is the same for all of them, and you want them to be averaged together into just one XY pair with that X value, then you could try the Linear Regression function in the Curve Fitting palette of the ANALYSIS panel.  If your problem is that you can't graph all the Y values because your X channel is shorter than your Y channel, then you need to reshape the X channel so that the repeated X value appears on the same row with each Y value that occurred for that X value and so that the X and Y channels each have the same number of values.  If your curve is not linear, then you might also try a different curve fitting function such as a polynomial approximation or a spliine fit.

Brad Turpin

DIAdem Product Support Engineer
National Instruments

[krakk1]

Hello,

Thank You for your answer!

But I think I did not explain completely my problem.

Well, our length of x-scale is the same as y-channel.

And we do not have only one x-value.

We have around 10 different x-values, and around 50different y-values. Each x-value contains around 5 different y-values. And thisis only one graph! The outlook of our graph with the spot /scatter/ shape canbe seen on the following:

http://href.hu/x/cjpf

How could weaverage these much points (many of them belonging to the same x-channel) into anice, linear/or polynomial/ one-line curve?

Thank you foryour answer!

Regards!

Balazs

[Adam G]

Hello Krakk1,

You should be able to use the Regression function located under analysis then curve fitting. From there you can select your X channel and your Y channel that you wish to use to calculate the regression line. This will create a single regression line for all of your points. Let me know if this helps out and have a great day!

 

Best Regards,

Adam G