## StdDev

Purpose

Description

Macro Synopsis

Modules

Related Functions

### Purpose

Standard deviation of signal values **(Macro only)**

### Description

"StdDev" returns the unbiased estimation of the standard
deviation

of the given signal, where denotes the
mean value and *N* is the signal length.

### Macro Synopsis

`stdv = StdDev(x);`

signal x;

float stdv;

### Modules

Basic

### Related Functions

Mean, Signal info