creating array of data set and performing loop.

[chintanpatel]

data RandClass(drop=i);
call streaminit(1234);
set sashelp.cars(keep= Cylinders Horsepower EngineSize);
array x {*} _numeric_;
do i = 1 to dim(x);
   if rand("Bern", 0.1) then
   x[i]=.;  /* p=0.4 ==> about 40% missing */
   end;
run;

Hello everyone, this is my code to delete values from columns randomly. It is working completely fine.

In the code 0.1 decides the percentage to delete. if i write there 0.2 it will delete 20% of the values and so on. I want to run a loop there that it will select values from 0.1 to 0.4 by 0.05. so total it should do 7 times. and I want to store all this 7 databases for future use. can anyone help me to do it ?

[Reeza]

Here's one way. Another is to use a macro loop to generate the data you need.

data RandClass;
	call streaminit(1234);
	set sashelp.cars(keep= Cylinders Horsepower EngineSize obs=50);
	array x {*} _numeric_;

	do p=0.1 to 0.5 by 0.1;
		do i = 1 to dim(x);
			if rand("Bern", p) then
				x[i]=.;
		end;

		output;
	end;
run;