Price Transform Functions
AVGDEV - Average Deviation
real = AVGDEV(close, timeperiod=14)
AVGPRICE - Average Price
real = AVGPRICE(open, high, low, close)
MEDPRICE - Median Price
real = MEDPRICE(high, low)
TYPPRICE - Typical Price
real = TYPPRICE(high, low, close)
WCLPRICE - Weighted Close Price
real = WCLPRICE(high, low, close)