Date: Tue, 17 Apr 2007 07:35:00 -0500
Reply-To: "Huang, JS" <Huang.JS@PRINCIPAL.COM>
Sender: "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From: "Huang, JS" <Huang.JS@PRINCIPAL.COM>
Subject: Re: What is the difference between UNIFORM and RANUNI?
In-Reply-To: A<1176801074.869090.155620@e65g2000hsc.googlegroups.com>
Content-Type: text/plain; charset="windows-1255"
Kevin:
The following coding and its result seems to suggest they are simply two different names performing the same function. The same seed generating identical 100000 values.
%let seed=12345;
data SetUniform;
do i=1 to 1e5;
a=uniform(&seed);
output;
end;
run;
data SetRanuni;
do i=1 to 1e5;
a=ranuni(&seed);
output;
end;
run;
proc sql;
select max(U.a-R.a)*100000 as MaximumDifferenceX100000
from SetUniform U join SetRanuni R on U.i eq R.i;
quit;
***** Output *****
The SAS System 07:17 Tuesday, April 17, 2007 8
Maximum
Difference
X100000
ャャャャャャ
0
-----Original Message-----
From: SAS(r) Discussion [mailto:SAS-L@LISTSERV.UGA.EDU] On Behalf Of Kevin Qin
Sent: Tuesday, April 17, 2007 4:11 AM
To: SAS-L@LISTSERV.UGA.EDU
Subject: What is the difference between UNIFORM and RANUNI?
Hi All,
I find that in SAS Online Help Doc, both have the identical purpose "Returns a random variate from a uniform distribution" and syntax.
>From many SAS code samples, I know that ranuni is popular.
But why? I can not see any difference between them.
I searched on SAS-L but found no answer.
Would you please help me out?
Thanks in advance.
Kevin Qin
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