add suffix/prefix to all data in a column?

[togglefroggle]

Hey everyone, I want to add a suffix to all data in a column,

data have;
INPUT ID $;
DATALINES;
AZ1
AZ2
AZ3
;
RUN;

I'm trying to make the data look like this

ID
AZ1_22
AZ2_22
AZ3_22

I would appreciate any help, thanks!

[ballardw · Accepted solution]

Since you already have a variable adding additional characters may mean that the suffix/prefix could make the new value too long to fit in the existing variable. So in a new data set you need to do something to make the length long enough to hold the largest expected value.

One way using a Length statement:

data have;
/* read with a fixed 3 characters to create that length*/
INPUT ID $3.;
DATALINES;
AZ1
AZ2
AZ3
;
RUN;

data want;
   /*this length statement adds 3 characters to hold the suffix*/
   length id $ 6.;
   set have;
   id = cats(id,'_22');
run;

The CATS function will remove trailing spaces from values and concatenate values from left to right into a new value.