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Replace values within range

Fri, 06/10/2011 - 02:01 am

Hi folks,
Is there a way of replacing a range of values within a wave with another number?

I have two waves, one which is a square wave and a response wave. I've found the derivative of the square wave to the locate edges, now I would like to replace values in my response wave with NaNs +/- 10 points around these square wave edges (i.e. cut holes in the data around the square wave transitions).

I could do this point by point, but this is cumbersome. Is there a better way?
Cheers,
Jason.

johnweeks

Are these 1D waves? and do you have a point number where the transition occurs? If so, you can use a simple wave assignment like this:

responsewave[tp-10, tp+10] = Nan

where tp represents the point number where the transition occurs. You can read about this and much, much more by executing this command on Igor's command line:

DisplayHelpTopic "Waveform Arithmetic and Assignment"

John Weeks
WaveMetrics, Inc.
support@wavemetrics.com

June 10, 2011 at 09:39 am - Permalink