| Functions and CALL Routines |
Removes trailing blanks from character expressions, and returns
a string with a length of zero if the expression is missing.
-
argument
-
specifies a character constant, variable,
or expression.
In a DATA step, if the TRIMN function returns a value to a variable that has
not previously been assigned a length, then that variable is given the length
of the argument.
Assigning the results of TRIMN to a variable does not
affect the length of the receiving variable. If the trimmed value is shorter
than the length of the receiving variable, SAS pads the value with new blanks
as it assigns it to the variable.
TRIMN copies
a character argument, removes all trailing blanks, and returns the trimmed
argument as a result. If the argument is blank, TRIMN returns a string with
a length of zero. TRIMN is useful for concatenating because concatenation
does not remove trailing blanks.
The TRIMN and TRIM functions
are similar. TRIMN returns a string with a length of zero for a blank string.
TRIM returns one blank for a blank string.
|
SAS Statements |
Results |
x="A"||trimn("")||"B";
put x;
|
AB
|
x=" ";
z=">"||trimn(x)||"<";
put z;
|
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Copyright © 2011 by SAS Institute Inc., Cary, NC, USA. All rights reserved.
