timeframe(4h) cop = CALL "Coppock curve" c1=cop>0 and cop[1]<0 c2= cop<0 and cop[1]>0 screener (c1 or c2) timeframe(4h) cop = CALL "Coppock curve" c1= cop crosses over 0 c2= cop crosses under 0 screener (c1 or c2) Dear All I wanted to have screener to detect when coppock curve crosses zero line so i tried to code as per above codes but unfortunately, both give fake results. anybody please consider if there is the problem of my coding or any solution?! with thanks.