| Functions and CALL Routines |
Returns the root mean square of the nonmissing arguments.
| Category: |
Descriptive Statistics
|
|
RMS(argument<,argument,...>)
|
-
argument
-
is a numeric constant, variable, or expression.
| Tip: |
The argument list can consist
of a variable list, which is preceded by OF. |
The root mean square is the square root
of the arithmetic mean of the squares of the values. If all the arguments
are missing values, then the result is a missing value. Otherwise, the result
is the root mean square of the non-missing values.
Let
![[equation]](images/leqn135.gif)
be the number of arguments with non-missing values, and
let
![[equation]](images/leqn136.gif)
be the values of those arguments. The root mean square
is
![[equation]](images/deqn211.gif)
|
SAS Statements |
Results |
x1=rms(1,7);
|
5
|
x2=rms(.,1,5,11);
|
7
|
x3=rms(of x1-x2);
|
6.0827625303
|
Copyright © 2011 by SAS Institute Inc., Cary, NC, USA. All rights reserved.
