statsmodels.tsa.filters.filtertools.fftconvolveinv  
statsmodels.tsa.filters.filtertools.fftconvolveinv(in1, in2, mode='full') [source]
 
Convolve two N-dimensional arrays using FFT. See convolve. copied from scipy.signal.signaltools, but here used to try out inverse filter doesn’t work or I can’t get it to work 2010-10-23: looks ok to me for 1d, from results below with padded data array (fftp) but it doesn’t work for multidimensional inverse filter (fftn) original signal.fftconvolve also uses fftn 


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