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Hi, I would like to apply a bandpass filter to my fmri time series data. I see that the command ip request that the cutoff frequencies be set in number of volumes and not frequency. I am not sure how this works. I would like to set a frequency of 0.01 Hz and 0.15 Hz for the bandpass filter. My data has a TR = 3 sec. Thank you in advance. Best wishes, Arun