Hi, I know about the difference between pylab.psd and mlab.psd, but in theory the only difference between the returned values is:
pylab.psd = 10*log10(mlab.psd) Except this is not true, there is noticeable difference: pylab.psd = 23.4962 (all these pylab.psd values are read from graph) 10*log10(mlab.psd) = 17.2852 pylab.psd = 18.8973 10*log10(mlab.psd) = 12.8149 pylab.psd = 4.92 10*log10(mlab.psd) = -2.247 These all look suspiciously out by around 2pi, although by no means exact. Any ideas? code is: pylab.psd(input, NFFT=512, Fs=sampleRate, window=blackman(512)) #graph x,y = mlab.psd(input, NFFT=512, Fs=sampleRate, window=blackman(512)) #look at x -- View this message in context: http://old.nabble.com/PSD-amplitude-disparity-tp27754632p27754632.html Sent from the matplotlib - users mailing list archive at Nabble.com. ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
