Variable: toMean()

const toMean: () => Reducer<number, number>

Defined in: statistics.d.ts:178

Returns a Reducer that computes the mean of the numbers it receives.

Use when composing reducers. Prefer mean, meanAsync, and meanConcur for direct use on iterables.

Returns

Reducer<number, number>

Example

console.log(
  pipe(
    [`sloth`, `more sloth`, `sleep`, `some sloth`],
    map(string => [string.length, [...string].filter(c => c === `o`).length]),
    reduce(toGrouped(toMean(), toMap())),
  ),
)
//=> Map(2) { 5 => 0.5, 10 => 2 }

Since

v3.5.0