SN-003815 ***Alert Note***
PROC MEANS/SUMMARY may generate incorrect weighted statistics with
multiple VAR statements
Product: Base SAS
Component: SUMMARY/MEANS/TABULATE/REPORT issues
Priority: ALERT
PROC MEANS/SUMMARY may generate incorrect weighted statistics when no
CLASS statement is specified and there are multiple VAR statements with
and without the WEIGHT= option. The order of the variables on the VAR
statement is significant. In order to encounter this problem, the
variables appearing on the VAR statements have to be interleaved based
on their relative position in the input data set. For expample, if the
analysis variables are in the order X1-X4 in the input data set, with
the following statements you would encounter the problem:
VAR X1 X3 / WEIGHT=W;
VAR X2 X4;
Where as with:
VAR X1 X2 / WEIGHT=W;
VAR X3 X4;
you would not encounter the problem.
Keywords:
proc means summary weight var statement incorrect statistics incorrout
output incorrstat
proc means/summary may generate incorrect weighted statistics with
multiple var statements
003815 3815
SAS Note Revised On: Tue, 21 Nov 2000
System Version Reported Version Fixed
AIX/6000 8.1 TS1M0 8.2
VM/ESA (CMS) 8.1 TS1M0 8.2
Compaq Tru64 UNIX 8.1 TS1M0 8.2
HP-UX Operating Systems 8.1 TS1M0 8.2
Intel ABI 8.1 TS1M0 8.2
MIPS ABI 8.1 TS1M0 8.2
OS/390 (MVS) 8.1 TS1M0 8.2
IBM OS/2 8.1 TS1M0 8.2
Solaris 8.1 TS1M0 8.2
OpenVMS VAX 8.1 TS1M0 8.2
OpenVMS Alpha 8.1 TS1M0 8.2
Windows NT 8.1 TS1M0 8.2
Windows 2000 Datacenter Server 8.1 TS1M0 8.2
Windows 2000 Professional 8.1 TS1M0 8.2
Windows 2000 Server and Advanced Server 8.1 TS1M0 8.2
Windows 95 8.1 TS1M0 8.2
Windows 98 8.1 TS1M0 8.2
No Fixes Available
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