curve fitting

[Jitin]

hey , currently i am using labview 8.6 , please do tell me how to curve fit any random real time signal using labview . i want to know how to input the signal, how to get the output of it. 

 Thank You

[GerdW]

Hi jitin,

can you explain how to fit a random signal? I would just use the average of the random signal as fit...

[altenbach]

In order to fit data, you need a model (linear, exponential, polynomial, nonlinear, etc.). Random data typically does not have a model (except for the randomness ;)), but you could do some realtime statistics (mean, stdev, mode, median, moments, range, etc....). We cannot really tell what you want.

LabVIEW has an entire fitting palette and most tools have examples that ship with LabVIEW.

To get help, you need to be much more detailed. Can you show us a typical set of data and what you expect to get out of it?

[Jitin]

hey altenbach , i wanted to ask how to do curve fitting of an exponentially decaying signal . Plz give me the steps of how to put an input , how to put the output (that is what all VI's to be used for input and output).

[Jitin]

hey GerdW , random meaning any arbitrary signal that had some peaks and vallyes just like a real time signal