# STARMS

## Purpose:

Calculates the short time averaged RMS series.

## Syntax:

STARMS(series, intv)

series |
- |
An input series |

intv |
- |
Optional. An integer, the duration of each
RMS segment. Defaults to 1.0 second. |

## Returns:

A series, the short time averaged RMS series.

## Example:

W1: gsin(1000, .01, 1)

W2: starms(W1)

W2 consists of a 10 point series where each point has a value of 0.707107,
the RMS value of each 1 second segment of W1.

## Example:

W4: starms(W1, 0.1)

W4 consists of a 10 point series where the values now vary since the
RMS value of W1 varies over a 0.1 second interval.

## Remarks:

The number of segments used to calculate the RMS value is

segsize = int(interval / deltax(s))

where s is the input series.

The segments are non-overlapping.

## See Also:

COLMEAN

MOVRMS

RMS