Statistics Module

This TypeScript module provides a set of functions for performing basic statistical operations on arrays of numbers.

Installation

To use these functions, include the module in your TypeScript project. Ensure you have TypeScript installed and configured.

Functions

average(array: number[]): number

Computes the average of an array of numbers.

Example:

import { average } from './stats';

console.log(average([1, 2, 3, 4, 7])); // Outputs: 3.4

variance(array: number[]): number

Computes the variance of an array of numbers.

Example:

import { variance } from './stats';

console.log(variance([1, 2, 3, 4, 7])); // Outputs: 4.24

stdDev(array: number[]): number

Computes the standard deviation of an array of numbers.

Example:

import { stdDev } from './stats';

console.log(stdDev([1, 2, 3, 4, 7])); // Outputs: 2.06

median(array: number[]): number

Finds the median of an array of numbers.

Example:

import { median } from './stats';

console.log(median([1, 2, 3, 4, 7])); // Outputs: 3

mode(array: number[]): number

Finds the mode of an array of numbers.

Example:

import { mode } from './stats';

console.log(mode([1, 2, 3, 4, 7, 7, 7, 7])); // Outputs: 7

range(array: number[]): number

Computes the range of an array of numbers.

Example:

import { range } from './stats';

console.log(range([1, 2, 3, 4, 7])); // Outputs: 6

covariance(array1: number[], array2: number[]): number

Computes the covariance of two arrays of numbers.

Example:

import { covariance } from './stats';

console.log(covariance([1, 2, 3, 4, 7], [1, 2, 3, 4, 7])); // Outputs: 4.24

Contributing

Contributions to improve the module are welcome. Please follow the standard GitHub pull request process to propose changes.