R: Variance (and standard deviation) of a vector

Variance of a vector {Rfast} | R Documentation

## Variance (and standard deviation) of a vector

### Description

Variance (and standard deviation) of a vector.

### Usage

    Var(x, std = FALSE,na.rm = FALSE)

### Arguments

`x` | A vector with data.
`std` | If you want the standard deviation set this to TRUE, otherwise leave it FALSE.
`na.rm` | TRUE or FAlSE for remove NAs if exists.

### Details

This is a faster calculation of the usual variance of a matrix.

### Value

The variance of the vector.

### Author(s)

Michail Tsagris

R implementation and documentation: Michail Tsagris <mtsagris@yahoo.gr> and Manos Papadakis <papadakm95@gmail.com>.

### See Also

`colVars, cova`

### Examples

    x <- rnorm(100)
    a1 <- Var(x)
    a2 <- var(x)
    x<-NULL

[Package Rfast version 2.0.0 Index]