Displaying 4 results from an estimated 4 matches for "ranuni".
Did you mean:
rankin
2010 Dec 23
1
Reconcile Random Samples
Is there a way to generate identical random samples using R's runif
function and SAS's ranuni function? I have assigned the same seed
values in both software packages, but the following results show
different results. Thanks!
R
===
> set.seed(6)
> random <- runif(10)
> random
[1] 0.6062683 0.9376420 0.2643521 0.3800939 0.8074834 0.9780757
0.9579337
[8] 0.7627319 0.5096485...
2009 Feb 25
4
Have a function like the "_n_" in R ? (Automatic count function )
Have the counter function in R ?
if we use the software SAS
/*** SAS Code **************************/
data tmp(drop= i);
retain seed x 0;
do i = 1 to 5;
call ranuni(seed,x);
output;
end;
run;
data new;
counter=_n_; ***** this keyword _n_ ****;
set tmp;
run;
/*
_n_ (Automatic variables)
are created automatically by the DATA step or by DATA step statements.
*/
/*** Output ********************************
counter seed x
1 584043288...
2008 Jun 23
3
Simulating Gaussian Mixture Models
Hi,
Is there any package that I can use to simulate the Gaussian
Mixture Model , which is a mixture modeling method that is widely used
in statistical learning theory.
I know there is a mclust, however, I think it is a little bit
different from my problem.
Thanks very much..
regards.
--------------------------
Peng Jiang
??
Ph.D. Candidate
Antai College of Economics &
2006 Mar 27
0
Graded Response Model Simulation (SAS code conversion)
...ction, and call it up inside a simulation code. Here is the SAS code:
%MACRO GRGEN;
DO G=1 TO NCAT-1;
Z=EXP(A*(THETA-BB(G))); PS(G)=Z/(1+Z);
END;
PP(1)=1-PS(1); PP(NCAT)=PS(NCAT-1);
DO G=2 TO NCAT-1;
PP(G)=PS(G-1)-PS(G);
END;
X=RANUNI(-1);
SUMP=0; R(J)=1;
DO K=1 TO NCAT-1;
SUMP=SUMP+PP(K);
IF X>SUMP THEN R(J)=K+1;
END;
%MEND GRGEN;
Now, I am totally unfamiliar to simulation in R. So does anyone have a good reference I could go to convert this?...