Answer Posted / srikanth

you can use the RANUNI function to select observations
randomly.

Ex:-

data test;
input number @@;
cards;
2.1 3.1 4 6 2.2 4.9 4 5 3 3.3 4 5 3 4.3 5 7 3 3 9 11
;

data test1;
set test;
random=ranuni(1);
run;

%let k=10;

PROC SORT DATA=TEST1;
BY random;/*SORT OBSERVATIONS*/
run;

DATA TEST2;
SET TEST2 (DROP=RANDOM);
IF _N_ LE &K;
RUN;

PROC PRINT ;
RUN;

how we can create a FLAG datasets? Ex:-ID age_group no_persons 1 to 10 10 to 20 3 11 to 20 21 to 30 7 21 to 3o 31 to 40 5

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