Function ema

ema<S extends SeriesSchema, const Output extends string = "ema">(
    series: TimeSeries<S>,
    options: MovingAverageOptions<S, Output>,
): TimeSeries<
    readonly [S[0], ValueColumnsForSchema<S>, OptionalNumberColumn<Output>],
>
Exponential moving average — a period-span EMA (α = 2/(period+1), the financial convention), appended as a new column. Length-preserving warm-up (undefined for the first period - 1 bars) via the ema minSamples gate, so it lines up on the source's time axis. Composes on core's smooth('ema').
Type Parameters
- S extends SeriesSchema
- const Output extends string = "ema"
Parameters
- series: TimeSeries<S>
- options: MovingAverageOptions<S, Output>
Returns TimeSeries<
readonly [S[0], ValueColumnsForSchema<S>, OptionalNumberColumn<Output>],
>
- Defined in studies/moving-average.ts:54