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DADiSP Worksheet Functions > Function Categories > Statistics and Calculus > COLRMS

 

COLRMS

Purpose:

Calculates the root mean square of each column of a series.

Syntax:

COLRMS(series)

series

-

A series or table.

Returns:

A series, the RMS value of each column

Example:

a = {{1, 2, 3},

     {4, 5, 6},

     {7, 8, 9}}

 

b = colrms(a)

 

b == {{4.690416}, {5.567764}, {6.480741}}

Example:

W1: gsin(100, .01, 1)

W2: 1..10

W3: ravel(w1, w2)

W4: colrms(w3)

 

W4 == {{0.707107}, {6.204837}}

Remarks:

COLRMS computes the root mean square value for each column of a series where RMS is defined as:

 

See Also:

BLOCKRMS

COLSTDEV

MEAN

MOVRMS

RMS

SQRT

STD