Le lundi 19 septembre 2011 à 19:54 +0200, Klonuo Umom a écrit : > I want to use kaiser window that's part of numpy for drawing spectrogram > > specgram(x, NFFT=256, Fs=2, Fc=0, detrend=mlab.detrend_none, > window=mlab.window_hanning, noverlap=128, > cmap=None, xextent=None, pad_to=None, sides='default', > scale_by_freq=None, **kwargs) > > *window*: callable or ndarray > A function or a vector of length *NFFT*. To create window > vectors see :func:`window_hanning`, :func:`window_none`, > :func:`numpy.blackman`, :func:`numpy.hamming`, > :func:`numpy.bartlett`, :func:`scipy.signal`, > :func:`scipy.signal.get_window`, etc. The default is > :func:`window_hanning`. If a function is passed as the > argument, it must take a data segment as an argument and > return the windowed version of the segment. > > So I tried: > > Pxx, freqs, bins, im = specgram(x, NFFT=1024, Fs=fs, window=kaiser, > noverlap=2) > TypeError: kaiser() takes exactly 2 arguments (1 given)
Does the following solve your problem ? NFFT = 1024 win = kaiser(NFFT,8) # 8 is the shpe parameter of the window Pxx, freqs, bins, im = specgram(x, NFFT=1024, Fs=fs, window=win, noverlap=2) ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
