Generating random number from a given sequence.

1 view (last 30 days)
Hello, I am generating a random sequence of channels one after another based on its availability. The way i'm doing it is like this. It is working fine but i don't like the way i have implemented it. Can you suggest a more efficient method for doing the same thing. Thank you.
idle=0;
ava_channelsabs=find(channelstate_abs(idabs,abs_idbeam,:)==idle);
col_slot1=[];
while length(col_slot1)<length(ava_channelsabs)
rand_slot1=randi(length(ava_channelsabs),1,1);
check=ismember(rand_slot1,col_slot1);
if check==0
rand_channel1=ava_channelsabs(rand_slot1);
col_slot1=[col_slot1,rand_slot1];
end
end

Accepted Answer

Steven Lord
Steven Lord on 25 Jul 2016
It sounds like you want to perform sampling without replacement. If that's the case take a look at the randperm function.

More Answers (0)

Categories

Find more on Loops and Conditional Statements in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by