Function InterpolatePoly


Recommended Posts

Hello, 
I am using DaqFactory version 19.1.

I saw that there was a function InterpolatePoly(X Array, Y Array, Interpolate To Array X)

I don't understand how to use the function, the input parameters and the output of the function. 

Can you help me with more precision or an example please?
Thanks in advance, 

PELLICIER Ludovic

Link to comment
Share on other sites

First, this function is largely deprecated and may not be available in 20.1.  If you are just trying to smooth a graph, either use the spline line type for the graph, or use smooth() or other averaging. 

But, that said, this function takes an X / Y trace defined by arrays of X and Y points (X array and Y Array) and then does an interpolation to give you new Y values for the array of values in Interpolate to Array X.  I've provided a simple example.  Note that the function does not work particularly well at the ends.  In fact, I find the function to not work particular well in general, which is why I recommend using other methods for data smoothing.  If you'd like to give me your use case, I can better identify what you should use instead.

interpolateExample.ctl

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share