Determing Range of a set of values

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I would like to have a function "range(waveName [, x1,x2])" that emulates the mean function, but would return the difference between the highest and lowest values in the specified set.
How about:

Function myRange(inWave,x1,x2)
	Wave inWave
	Variable x1, x2
	
	WaveStats/M=1/Q/R=(x1,x2) inWave
	return V_max-V_min
End

July 30, 2010 at 03:07 pm - Permalink
How about:


Function RangeDif(w, x1, x2)
	Wave w
	Variable x1, x2
	
	Variable wMin = WaveMin(w, x1, x2)
	Variable wMax = WaveMax(w, x1, x2)
	Variable dif = wMax - wMin
	
	return dif
End


I'm not sure which would be faster (and I'm not willing to bet a nickel on it!).

July 30, 2010 at 06:00 pm - Permalink
Thanks to both!

I was embedding the function into a routine found in the manual "Finding the Mean of Segments of a Wave," using "range" instead of "mean."

It ended up that working with the WaveMax and WaveMin valuations was the easier way to go. I tried to create a value "y_range" separately, but it wasn't taking for whatever reason. Anyway, I got what I needed.

August 3, 2010 at 06:07 am - Permalink