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Creating N number of waves

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isk8 May 11, 2012 - 13:39
Posts: 5
 Joined: 2012-05-11
 Location: United States

I'm trying to make a procedure that automates the following process and I got stuck.
I have waves that have a multiple of 1024 points (1024 x N points).
I'm trying to decompose these waves into N number of waves, each with 1024 points, whose names are wave_N.
I know how to decompose waves having 1024 points each, but I'm not sure how to make N number of waves depending on the number of points I have in the starting wave (1024 x N points).
Does anyone know how you would make N number of waves in this case?
Thank you.
hrodstein
 May 11, 2012 - 14:45
Posts: 911
 Joined: 2007-06-21
 Location: United States

Here is a solution:

// NOTE: Output waves are overwritten if they already exist.
// Example:
//	Make /O /N=10 testInputWave = p
//	Edit testInputWave
//	DecomposeNumeric1DWave(testInputWave, 3, "output")
//	AppendToTable output0, output1, output2, output3
Function DecomposeNumeric1DWave(w, pointsPerOutputWave, baseName)
	Wave w							// A 1D wave
	Variable pointsPerOutputWave	// e.g., 1024
	String baseName				// e.g., "wave" to get wave0, wave1, . . .
 
	Variable numInputPoints = numpnts(w)
	if (numInputPoints == 0)
		return 0
	endif
 
	Variable numOutputWaves = ceil(numInputPoints / pointsPerOutputWave)
 
	Variable startPoint=0, endPoint
 
	Variable i
	for(i=0; i<numOutputWaves; i+=1)
		String outputName
		sprintf outputName, "%s%d", baseName, i	// wave0, wave1
		endPoint = startPoint + pointsPerOutputWave - 1
		endPoint = min(endPoint, numInputPoints-1)
		Duplicate /O /R=[startPoint, endPoint] w, $outputName
		startPoint = endPoint + 1
	endfor
 
	return 0
End
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