# Compute the mean and standard deviation of each row in a data matrix

### Description

This function computes the mean and standard deviation of each row in a data matrix. The source code is written in C. As a consequence, the computation is quite fast.

### Usage

1 | ```
mat.mean(data)
``` |

### Arguments

`data` |
The data matrix. |

### Value

A matrix, the first columns contain the means, the second the standard deviations.

### Author(s)

Raphael Gottardo

### See Also

`mean`

,`sd`

### Examples

1 2 3 | ```
data(hiv)
sample1<-hiv[,1:4]
ms1<-mat.mean(sample1)
``` |

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