% step 1, read in data on channel channel: channel = 1; [d]=read_Intan_RHD2000_datafile('intan_171213_040628.rhd',[],'amp',channel,0,Inf); [t]=read_Intan_RHD2000_datafile('intan_171213_040628.rhd',[],'time',channel,0,Inf); [b,a] = cheby1(4,0.8,[300/(0.5*20000)],'high'); df = filtfilt(b,a,d); % step 3, plot the data figure; plot(t,df); |