Storing all values into an array

So I'm working on this code to help me with a class, and it works except for the fact that it doesn't store all of my x answers into the array, it only stores the last one. Any suggestions would be so helpful, oh I'm using the R2012a on a macbook pro (don't really know if you need this info)

n = 1;
        x = 0;

      for n = 1:365

          w = 45;
          B = (n-1)*(360/365);
          d = (180/pi)*(0.006918-00.399912*cos(B)+0.070257*sin(B)-0.006758*cos(2*B)+0.000907*sin(2*B)-0.002697*cos(3*B)+0.00148*sin(3*B));
          c = x;
          x = sin(d)* sin(o)*cos(t) - sin(d)*cos(o)*sin(t)*cos(s) + cos(d)*cos(o)*cos(t)*cos(w) + cos(d)*sin(o)*sin(t)*cos(s)*cos(w) + cos(d)*sin(t)*sin(s)*sin(w);

              %plot (d,x);

          A = [45 x]

      end

      n = n+1;

Answer 1

[Jos (10584)]

You want to do something like this:

N = 10 ;
A = zeros(N,1) ; % pre-allocation, will speeds things up
for k=1:N,
    x = rand(1) + 3 ; % some calculation
    A(k) = x ; % store it
end

However, note that in matlab you can often vectorise loops. All of the lines above vectorises into:

A = rand(10,1)+3 ;

[Leah Aguirre]

Thank you! It works perfectly

[Stephen23]

@Leah Aguirre: the vectorized solution is the one you should use! And you should learn about how to write your own vectorized code too.