I have normalised some physiological waveforms on the Y axis (easy) but how do I normalise on the Y axis?

[JarleEkanger · Accepted solution]

I reviewed my former suggestion and found it unclear... See attached snippet. It converts actual time in the waveform to relative time by subtracting t0, and normalizes by the waveform duration. Result "has to be" on XY form...

[altenbach · Accepted solution]

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@mhar153 wrote:

A slower change.

I have attached an XL spreadsheet where I have the data from two waveforms. Both 't' and ''y' are normalised.  I have concatenated the two datasets, sorted them on on 't' and then performed a running average.  It seems to work (in XL) so I need to figure out how to do it in Labview.

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Assuming you want to have all datasets with the same number of points (e.g. to average them), you would simply create an x-ramp with a suitable number of points, then you would use "interpolate" array to create each x-normalized dataset.

If you have waveforms data, use one of the  "resample waveform" functions. 

[mhar153]

Thanks for all the help...it has clarified my thoughts and solved the problem.