MISSING

MISSING

Assigns characters in your input data to represent special missing values for numeric data

Valid: Anywhere

Category: Information

Type: Global

Syntax

MISSING character(s);

Range:	Special missing values can be any of the 26 letters of the alphabet (uppercase or lowercase) or the underscore (_).
Tip:	You can specify more than one character.

With survey data, you may want to identify certain kinds of missing data. For example, in the data, an A can mean that the respondent is not at home at the time of the survey; an R can mean that the respondent refused to answer. Use the MISSING statement to identify to SAS that the values A and R in the input data lines are to be considered special missing values rather than invalid numeric data values:

data survey;
   missing a r;
   input id answer;
   datalines;
001 2
002 R
003 1
004 A
005 2
;