topic Re: Multiple Numeric Comparisons in SAS Enterprise Guide

Multiple Numeric Comparisons

jen123 — Sat, 21 May 2011 23:22:13 GMT

Hi,

I have a situation where I need to calculate a performance based on 2 criteria. Below is what I have attempted in EG - but it errored.

The 1st 2 criterias are from one table, and the last 2 are from another table. There is no common column/field between the 2 tables - so I did not join them.

If the employee meets the two conditions, s/he is considered "EFFECTIVE".

Please advise how I should fix this. Thanks much!

***************

PROC SQL NOEXEC;
4 SELECT t1.WeightedAvg_NCL,
5 t1.ApprovalRate,
6 t2.Standard_NCL,
7 t2.Standard_ApprovalRate,
8 /* DecisionEffectiveness */
9 (if WeightedAvg_NCL <= Standard_NCL and ApprovalRate >= Standard_ApprovalRate then de='effective';
_______________
22
76
ERROR 22-322: Syntax error, expecting one of the following: !, !!, &, (, *, **, +, -, '.', /, <, <=, <>, =, >, >=, AND, EQ, EQT,
GE, GET, GT, GTT, LE, LET, LT, LTT, NE, NET, OR, ^=, |, ||, ~=.

ERROR 76-322: Syntax error, statement will be ignored.

9 ) AS
_
180
ERROR 180-322: Statement is not valid or it is used out of proper order.

Re: Multiple Numeric Comparisons

jen123 — Sat, 21 May 2011 23:50:25 GMT

I don't know why line 9 of the original posting is differnt once posted. In my code to use the characters to represent "greater than or Equal to" and "less than or equal to" - I don't spell it out in my codes. I just don't know why this forum deletes them from my codes below.

Here is what I would like for SAS EG to return one of the three performance:

*if WeightedAvg_NCL Less Than or Equal to Standard_NCL and ApprovalRate Greater Than or Equal to Standard_ApprovalRate then de='effective';

*if WeightedAvg_NCL > Standard_NCL and ApprovalRate < Standard_ApprovalRate then de='ineffective';

*if WeightedAvg_NCL = Standard_NCL and ApprovalRate = Standard_ApprovalRate then de='meet'

Thanks again!

****************
3 PROC SQL NOEXEC;
4 SELECT t1.WeightedAvg_NCL,
5 t1.ApprovalRate,
6 t2.Standard_NCL,
7 t2.Standard_ApprovalRate,
8 /* Decision Effectivness */
9 (if WeightedAvg_NCL <= Standard_NCL and ApprovalRate >= Standard_ApprovalRate then de='effective';
_______________
22
76
ERROR 22-322: Syntax error, expecting one of the following: !, !!, &, (, *, **, +, -, '.', /, <, <=, <>, =, >, >=, AND, EQ, EQT,
GE, GET, GT, GTT, LE, LET, LT, LTT, NE, NET, OR, ^=, |, ||, ~=.

ERROR 76-322: Syntax error, statement will be ignored.

9 if
__
180
ERROR 180-322: Statement is not valid or it is used out of proper order.

10 WeightedAvg_NCL > Standard_NCL and ApprovalRate < Standard_ApprovalRate then de='ineffective';
10 ! ) AS
_
180
ERROR 180-322: Statement is not valid or it is used out of proper order.

Re: Multiple Numeric Comparisons

DBailey — Sun, 22 May 2011 02:15:31 GMT

There are no if statements in proc sql. You need to use a case statement.

case when a is true then b when c is true then d else e end as VarName

alternatively you can check multiple values of one variable as in

case a when b then c when d then e else f end as varname

means if a=b then varname=c elseif a=d then varname=e else f

Re: Multiple Numeric Comparisons

TomKari — Mon, 23 May 2011 15:25:13 GMT

You'll have another problem. JOINs in SQL perform quite differently from SETs in DATA steps. If you don't provide join specifications, SQL will combine every record in dataset one with every record in dataset two, so you'll get a combinatorial explosion.

Tom