wma

Parameters

Weighted Moving Average - wma(source, periods)

Calculates a weighted moving average where recent values have higher weights.

• source (source): Data series to average - price field (close, high, low, open) or indicator output
• periods (int): Number of periods for the WMA calculation (must be > 0)

Formula

WMA = (P1 * n + P2 * (n-1) + ... + Pn * 1) / (n + (n-1) + ... + 1)
where n = periods, P1 = most recent price, Pn = oldest price

The most recent value has weight n, the previous has weight n-1, and so on.

Examples

x = wma(close, 10);   # 10-period WMA of closing prices
y = wma(high, 20);    # 20-period WMA of highs
close > wma(close, 50);  # Price above 50-period WMA

Returns

Float value representing the weighted moving average