Frequency Tables and Relative Frequency

Install and import#

bash

npm install fintech-algorithms

import { frequencyTablesAndRelativeFrequency } from "fintech-algorithms/financial-mathematics-statistics-and-data-foundations/location-ranking-and-exploratory-summaries/frequency-tables-and-relative-frequency";

Signature#

frequencyTablesAndRelativeFrequency(input)

Worked example#

verified This is the worked example published in the article, replayed by the test suite on every run. The output cannot drift.

Input#

input

{
  "values": [1, 2, 2, 4, 9],
  "weights": [1, 1, 2, 1, 1],
  "trimProportion": 0.2,
  "bins": 4
}

Call#

frequencyTablesAndRelativeFrequency(input)

Returns#

object with 2 fields: frequency, relativeFrequency

{
  "frequency": {
    "1": 1,
    "2": 2,
    "4": 1,
    "9": 1
  },
  "relativeFrequency": {
    "1": 0.2,
    "2": 0.4,
    "4": 0.2,
    "9": 0.2
  }
}