This indicator plots the difference between the High (of the previous period) and an exponential moving average (13 period) of the Close (of the previous period). You can use in the xPrice any series: Open, High, Low, Close, HL2, HLC3, OHLC4 and ect... It buy if indicator above 0 and sell if below.
You can change long to short in the Input Settings Please, use it only for learning or paper trading. Do not for real trading.