Resampling times series to the same integer timebase

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Sat, 12/13/2014 - 12:24 am

Hello, I am new to Igor and wondered if anyone could help, I have searched the forum but not quite finding the answer I need

I am working with time series: the measurements are made at different times of calendar years and are unevenly spaced. The Y values are decimal years (2004.3, 2004.7, 2005.1, 2005.4 etc)

I want to resample each time series by fitting a best fit spline and then interpolate the spline value for the top of the year i.e. obtain a series of Y values for the integer X value such that all my data series are scaled to the same timebase.

I would be very grateful for any guidance!

Thanks in advance and apologies if this has been covered before....

dave
Quote:
I am new to Igor

If you have not already done it, do the first half of the Igor guided tour. It is essential. Choose Help->Getting Started.

I don't really understand the question but it might be helpful if you execute this command and read the help topic that it displays:

DisplayHelpTopic "Waveform Versus XY Data"

December 17, 2014 at 12:43 pm - Permalink

hrodstein: thank you! I had done the tours etc but didn't appreciate that converting XY data to a waveform did what I was looking for! The link was very helpful.

Thanks again, dave

December 20, 2014 at 08:03 am - Permalink