wma

wma(series, period)

Parameters

• source (series) – Input series

• period (numeric) – MA period

Returns

series

Returns the weighted moving average of source for the period bars.

$$\mathrm{wma}=\frac{\sum _{i=0}^{\mathrm{period}-1}(\mathrm{period}-i){\mathrm{series}}_i}{\sum _{i=1}^{\mathrm{period}}i}$$