MATLAB: Conditional replacement of a vector of zeros and ones

conditionalMATLABonesreplacezeros

Hi All,
I have an array of zeros from 1:400 and want to randomly assign ones in 10 positions for every 40 zeros in the sequence.
cycles = 40;
count = 0;
state = zeros(1, 400);
for i = 1:cycles
    tempstate = state(count:count+cycles)
    for j = 1:10
        tempstate(randi(numel(tempstate))) =1
    end
    count = count + 40
The issue I have is that I want wherever I assign a one to have a zero either side.
But still maintain 10 1's per 40 positions in the sequence.
Appreciate the help.
Thanks,
David

Best Answer

Hey David,
this should do the Job. Sorry for my Variablenaming but I could not consider better names :)
sequence=40;
vectors2create=400/sequence;
amountofOnes=10;
finalVector=[];%end vector
for(a=1:1:vectors2create)
    
    tempVec=zeros(1,40);
  
        for(b=1:1:amountofOnes)
           onePos(b)=randi(sequence,1);%determine the positions which become 1 
        end
        
        tempVec(onePos)=1;%set the positions to 1
        finalVector=[finalVector,tempVec];%append the final vector
end
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