Remove trend from a data series
pl = plist('tsfcn','2*sin(2*pi*1.7*t)+randn(size(t))','fs',10,'nsecs',10,'yunits','V'); x = ao(pl); pl_trend = plist('tsfcn','t.^2','fs', 10,'nsecs',10); trend = ao(pl_trend); fcn_trend = x+trend; pl_detr = plist('N',2); detr = detrend(fcn_trend,pl_detr); iplot(x,fcn_trend,detr);