Function dpois

dpois<T extends Vectorizable>(
    x: T,
    lambda: number,
    options?: DensityOptions,
): VectorResult<T>
Probability mass function of the Poisson distribution. Equivalent to R's dpois(x, lambda, log = FALSE).
Type Parameters
- T extends Vectorizable
Parameters
- x: T
  Value(s) at which to evaluate: a number, number[] or Float64Array. The result has the same shape.
- lambda: number
  Mean.
- options: DensityOptions = {}
  log (see DensityOptions).
Returns VectorResult<T>
The probability (or log probability).
Example
```
dpois(2, 3);         // 0.22404180765538775
dpois([0, 1, 2], 3); // [0.049787068367863944, 0.14936120510359185, 0.22404180765538775]
```
- Defined in distributions/poisson.ts:99