MOVRMS

Purpose:

Calculates the moving RMS of a series.

MOVRMS(series, N, rampflag)

series

A series or table.

An integer, the number of points to calculate the RMS as the series is processed.

rampflag

Optional. An integer, endpoint averaging flag.

0:	down
1:	up (default)

A series or table.

W1: {1, 2, 4, 7}

W2: movrms(W1, 3)

returns the series {1, 1.581, 2.646, 4.796, 5.701, 7}

W3: movrms(W1, length(W1))

W3[length(w1)] == rms(w1) == 4.183

MOVRMS computes the moving discrete root mean square value. For each section of length N, the RMS value is defined as:

For speed, this routine uses the built-in function MOVAVG.

See LINRMS to compute a phase-less moving RMS.