wilderma

Wilder Moving Average (EMA with α = 1/N)

`wilderma(source, periods)`

Parameters

Name	Type	Description
`source`	field	Data series to calculate Wilder MA on
`periods`	int	Number of periods for the moving average

Formula

Wilder MA = EMA with α = 1/N

Examples

wilderma(close, 14);  # 14-period Wilder MA (used in RSI)
wilderma(close, 20);  # 20-period Wilder MA
x = wilderma(close, 14); close > x;  # Price above Wilder MA

Returns

float — may be NULL

Range

periods must be 2-105

Notes

Seeded with the SMA over the periods bars ending at the seed bar, same as ema(); no value before the seed bar

References

Developed by J. Welles Wilder Jr.

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