topic Re: Do we have a "where NOT in" statement? in SAS Procedures

Do we have a "where NOT in" statement?

Ken_oy — Thu, 23 Jul 2009 18:31:54 GMT

I know this is a very simple question,
We have a " where in (1,2,3,....)" statement
do we have "where not in (1,2,3...)?" or a similar statement?

Thanks!

Re: Do we have a "where NOT in" statement?

Bill — Fri, 29 Jul 2016 14:14:15 GMT

yes - just use it as you've written it (almost).

where varname not in (1,2,3);

Dare to experiment - error messages are free!

Editor's note: consolidating some other helpful comments in this solution...

@bhthomas99 asks about the NOTIN operator (no space). @abbess replied:

The NOTIN operator work perfectly, I have tried it my self. Also it is mentioned in the SAS Support that NOT is a prefix wich can be used with other operators.

"A prefix operator is an operator that is applied to the variable, constant, function, or parenthetic expression that immediately follows it. The plus sign (+) and minus sign (-) can be used as prefix operators. The word NOT and its equivalent symbols are also prefix operators"

See SAS Operators in Expressions (SAS documentation)

And @Doc_Duke points out that order-of-operations matters:

Be careful combining NOT, AND, and OR; you don't always get what you think, especially if you leave it to SAS to resolve the expression. For instance,

not varname IN (1, 2, 3)

does not give the same answer as

not (varname in (1,2,3)

Re: Do we have a "where NOT in" statement?

stateworker — Thu, 23 Jul 2009 19:19:50 GMT

Bill wrote:
>Dare to experiment - error messages are free!

Thanks for the chuckle - my log is full of Red today.

Re: Do we have a "where NOT in" statement?

Doc_Duke — Thu, 23 Jul 2009 20:19:00 GMT

More completely, you can put a "not" infix operator in nearly every logical expression, and often outside, e.g.
where not (varname IN (1,2,3));
is a valid statement.

Be careful combining NOT, AND, and OR; you don't always get what you think, especially if you leave it to SAS to resolve the expression. For instance,

not varname IN (1, 2, 3)

does not give the same answer as

not (varname in (1,2,3)

Re: Do we have a "where NOT in" statement?

ChrisNZ — Sun, 26 Jul 2009 21:47:44 GMT

Thanks for this Doc. I always use NOT before IN, and it never occured to me that

not varname IN (1, 2, 3)

reads as

(not varname) IN (1, 2, 3) which is true is var = 0

I'll keep this is mind, and add this comment so more people have a chance to read the thread.

Re: Do we have a "where NOT in" statement?

bhthomas99 — Fri, 10 Jul 2015 15:53:48 GMT

I have recently seen "NOTIN", which seems to work: however, there is no space between the infix and the operator. Is this even possible?

Re: Do we have a "where NOT in" statement?

abbess — Mon, 08 Feb 2016 16:03:28 GMT

The NOTIN operator work perfectly, I have tried it my self. Also it is mentionned in the SAS Support that NOT is a prefix wich can be used with other operators.

"A prefix operator is an operator that is applied to the variable, constant, function, or parenthetic expression that immediately follows it. The plus sign (+) and minus sign (-) can be used as prefix operators. The word NOT and its equivalent symbols are also prefix operators"

Source: http://support.sas.com/documentation/cdl/en/lrcon/62955/HTML/default/viewer.htm#a000780367.htm

Re: Do we have a "where NOT in" statement?

DarthPathos — Fri, 29 Jul 2016 23:50:00 GMT

Although you have a couple of already accepted solutions, I wanted to throw my two cents in as a PROC SQL guy. I use the NOTIN frequently, especially when querying text:

All my data:

proc sql;


select product, count(*)
from sashelp.shoes
group by product
order by product
;

quit;

Results:

Excluding BOOT and SANDAL:

proc sql;


select product, count(*)
from sashelp.shoes

where product notin ('Boot','Sandal')

group by product
order by product
;

quit;

Results:

Good luck!

Chris