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07-25-2003, 05:31 PM
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correct scaling factor in Matlab cwt()?
Hello! I have a detail question about the Matlab cwt() function. Line 86
is the meat of the transform. It appears that the scaling factor being used here is -sqrt(a). Shouldn't the scaling factor be 1/sqrt(abs(a)) ? I'm sure they are right, but for the life of me I don't see where the extra factor of -1/a would be coming from. Any help would be much appreciated. As an aside, they seem to be calculating the approximate cwt in a very roundabout way (they start with the integral of the wavelet, then convolve and take a derivative). Any idea why this is better than just calculating it directly? Thank you in advance for your help! 
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