Selecting Time Series Variables - The KEEP and DROP Statements
/*--------------------------------------------------------------
SAS Sample Library
Name: datgs01.sas
Description: Example program from SAS/ETS User's Guide,
The DATASOURCE Procedure
Title: Selecting Time Series Variables - The KEEP and DROP Statements
Product: SAS/ETS Software
System: ALL
Keys: DATASOURCE data extraction from various sources
Procs: DATASOURCE
Data: sasmisc: citiaf.dat (DATASOURCE database files)
Notes: Read this before you run this sample.
The database resides in the ets/sasmisc folder. You
must copy the database to a writeable folder before
using it. Then define your Windows system environment
variable, DATASRC_DATA, to the path of your
writeable folder containing
the citiaf.dat file.
To assign a fileref to the external file to be processed,
use the following form of the filename statement:
filename citifile "%sysget(DATASRC_DATA)citiaf.dat" RECFM=F LRECL=80;
--------------------------------------------------------------*/
/*-- Selecting Time Series Variables -- The KEEP and DROP Statements --*/
filename citifile "%sysget(DATASRC_DATA)citiaf.dat" RECFM=F LRECL=80;
proc datasource filetype=dribasic infile=citifile
interval=month outcont=vars;
drop e: ;
run;
title1 'Some Time Series Variables Available in CITIFILE';
proc print data=vars;
run;