Introduction to simulation with sas
- Thread starter katlego
- Start date
- Tags sas program sashelp simualtion
There is so much resource up in the web.I would do a simple search in the web to get started with.
This is a good one:
http://www.biostat.umn.edu/~john-c/5421/notes.023b and UCLA website always have a good resource.
In fact, I would start from here.
(LINK)
While we are here, here's really some basic examples of simulation in SAS.
This is a good one:
http://www.biostat.umn.edu/~john-c/5421/notes.023b and UCLA website always have a good resource.
In fact, I would start from here.
(LINK)
While we are here, here's really some basic examples of simulation in SAS.
Code:
*Suppose you want to simulate 1000 values from a Normal distribution with mean 3 and standard deviation of 1.50;
/*Appraoch 1*/
data sim_data;
do i=1 to 1000;
x = 3 + rannor(0)*1.50;
output;
end;
run;
*check your outputs;
proc means data=sim_data;
var x;run;
Analysis Variable : x
N Mean Std Dev Minimum Maximum
-----------------------------------------------------------------
1000 2.9315496 1.5082780 -2.0852613 8.4886542
------------------------------------------------------------------
* The same can be done using a macro;
/*Appraoch2*/
%macro simulate (mean,sd) ;
data simulated_data;
do j = 1 to 1000 ;
x= &mean+rannor(0)*&sd;
output;
end;
run;
%mend ;
%simulate(3,1.50) ;I really need a solid foundation for sas, so i was hoping that you will suggest several rich sas websites. I do not want to search the internet every time I need to solve a case study. All I want is several websites that will give me concrete syntax explanations. Nevertheless thanks for your suggestion.
There is an article titled "Simulation in SAS" that give a basic introduction article with an example and discusses how to simulate efficiently in SAS: http://blogs.sas.com/content/iml/2012/07/18/simulation-in-sas-the-slow-way-or-the-by-way/ or short URL http://bit.ly/Nhn9tW