MATLAB: Do we have any Fucntion which can generate +1 and -1 randomly???

random number generator

I am using the following thing to generate it…

a=rand(1,10);

b=round(a);

b( b==0 )=-1;

So is there any other best way to genrate +1 and -1 randomly

Best Answer

I don't think there is any function doing that.

Here is another approach:

sign(rand(1,10)-0.5)

(-1).^(round(rand(1,10)))

Related Solutions

MATLAB: Plot +1 +1 -1 -1 rectangular pulse

Previously the pattern was repeating after every 2 occasions (+1 -1)(+1 -1). So, you used rem function with respect to 2. Now the pattern has to repeat after every 4 occasions (+1 +1 -1 -1)(+1 +1 -1 -1). So, let us use rem function with respect to 4. I think the changes as done below will suffice your requirement.

for m = 0:Npulses
  if  rem(m,4) == 0 | rem(m,4) == 1  %1st and 2nd term
        Tx1 = exp(1j*pi*gamma*(t-m*PRI).^2);
        W=ones(size(t));
        W(t<m*PRI)=0; 
        W(t>(m*PRI+tau))=0; 
        s1 = Tx1.*W+s1;
      else
          Tx2 = -exp(1j*pi*gamma*(t-m*PRI).^2);
          W=ones(size(t));
          W(t<m*PRI)=0;
          W(t>(m*PRI+tau))=0;
          s1 = Tx2.*W+s1;
      end
end

MATLAB: Generate uniform random numbers between -1 and +1 in matlab

2*rand()-1;

Best Answer

Related Solutions

MATLAB: Plot +1 +1 -1 -1 rectangular pulse

MATLAB: Generate uniform random numbers between -1 and +1 in matlab

Related Question