Date:         Sat, 14 May 2005 22:12:31 +0200
Reply-To:     Robbins <robbins@O2.PL>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Robbins <robbins@O2.PL>
Organization: Wroclaw University of Technology, Poland
Subject:      Re: Do you recommed this source ..
Comments: To: sas-l@uga.edu

I'm  immensely indebted to all for comments and suggestion.
I should explain why I intend to learn macros. I wrote programs in MATLAB.
But statistics there is very poor. Also , because my university buy SAS
licence I decided to quit writing codes in MATLAB and I choose SAS. In SAS I
would like to write my own code, as well - e.g. simulation (Monte Carlo).
But I noticed that SAS does not allow to write code like this:

do i=1 to 1000;
proc something;
.......
run;
proc something;
.......
proc something;
.......
run;
run;
end;
It is immposible to nested proc, data and so on.

I bought book: SAS for Monte Carlo Studies (Fan, Felsovalyi, Silvo, Keenan).
But there are only macros.I tried to modify code to simulate 2 variables X
and Y from independent normal pdf. Next I count Pearson's correlation. But I
can't to figure out how to repeat this 200 times to get 200 Pearson's
correl. Therefore I thought that I should learn macro. Does anybody know how
to do it. Program is (it's a pity that I can't write: repeat 200 my program
end;)

DATA DAT;
  DO I=1 TO 1000;
    X=RANNOR(0);
 Y=RANNOR(0);
    OUTPUT;
  END;
                   *** use PROC CORR to get Pearson r, results as SAS
dataset PEARSON;
PROC CORR DATA=DAT NOPRINT OUTP=PEARSON;
  VAR X Y;
RUN;
DATA PEARSON; SET PEARSON;
  IF _NAME_='X';
  CORR=Y;
  KEEP CORR;
  run;

Thank you vary much
Rob