Hello Ladies and Gentlemen,
I am trying to output a random number within a proc iml statement.
For example if i do: A=RANUNI(-1); any time it give a different random number between 0 and 1.
Now I have my interval (Bi, Bi+1) and I want a random number between this interval. Just like RANUNI(-1), I want this interval to change anytime I run it and to vary as I vary my interval
See the article How to generate random numbers in SAS - The DO Loop which shows how to use the RANDGEN routine to generate random numbers. If u is in the inerval [0,1] then Bi+u is in the interval you want. You can use CALL RANDSEED(0) if you want the random number stream to be different each time you run the program. Remember also that if you are going to need thousands of random numbers to vectorize the program by allocating an array and filling it: Efficient Sampling - The DO Loop
My interval varies and it is like (0.93, 1.41) and I want a random a within the the interval. THe other interval is (0.67,0.83)
If the uniform random number you generate equals RN, the random value within a specific interval from LOW to HIGH equals:
Random value = LOW + RN*(HIGH - LOW).
Thanks answered
Are you ready for the spotlight? We're accepting content ideas for SAS Innovate 2025 to be held May 6-9 in Orlando, FL. The call is open until September 25. Read more here about why you should contribute and what is in it for you!
Learn how to run multiple linear regression models with and without interactions, presented by SAS user Alex Chaplin.
Find more tutorials on the SAS Users YouTube channel.