CV Function

Returns the coefficient of variation.

Category:	Descriptive Statistics
Returned data type:	DOUBLE

Table of Contents

Syntax

CV(expression-1, expression-2 [, ...expression-n])

Required Argument

expression

specifies any valid expression that evaluates to a numeric value.

Requirement	At least two arguments are required.
Data type	DOUBLE
See	DS2 Expressions in SAS DS2 Programmer’s Guide

Example

The following program illustrates the CV function:

Note: In this example, DS2 statements are sent to SAS using PROC DS2.

proc ds2;
data test(overwrite=yes);
   dcl double x1 x2 x3 x4;
   method run();
      x1=cv(5, 9, 3, 6);
      put x1=;
      x2=cv(5, 8, 9, 6, .);
      put x2=;
      x3=cv(8, 9, 6, .);
      put x3=;
      x4=cv(of x1-x3);
      put x4=;
   end;
enddata;
run;
quit;

proc ds2;
data test(overwrite=yes);
   dcl double x1 x2 x3 x4;
   method run();
      x1=cv(5, 9, 3, 6);
      put x1=;
      x2=cv(5, 8, 9, 6, .);
      put x2=;
      x3=cv(8, 9, 6, .);
      put x3=;
      x4=cv(of x1-x3);
      put x4=;
   end;
enddata;
run;
quit;

SAS writes the following output to the log.

x1=43.4782608695652
x2=26.082026547865
x3=19.9242421519819
x4=40.9535392160926

Last updated: September 2, 2026