gema

swordfish.function.gema()

Calculate the Exponential Moving Average (ema) for X in a sliding window of the given length.

参数:

• X (Constant) -- A vector/matrix/table.

• window (Constant) -- A positive integer indicating the size of the sliding window.

• alpha (Constant) -- A floating-point number in (0,1) indicating the smoothing factor alpha.