sample.var {LearningStats}R Documentation

Sample Variance

Description

sample.var computes the sample variance of a sample x.

Usage

sample.var(x)

Arguments

x

a numeric vector containing the sample.

Details

Given \{x_1,\ldots,x_n\} a sample of a random variable, the sample variance can be computed as S^2=\frac{1}{n}\sum_{i=1}^n (x_i-\bar{x})^2.

Value

A single numerical value corresponding with the sample variance.

Examples

x=rnorm(20)
sample.var(x)

[Package LearningStats version 0.1.0 Index]