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 0.27197
2 935902963 0.43581
3 301879523 0.14057
4 753212598 0.35074
5 1607264573 0.74844
********************************************/
Have a function like the "_n_" in R ?
--
Nash - morri...@ibms.sinica.edu.tw
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