title: read into arrays in Julia
body: <p>I'm relatively new to Julia and am looking for an efficient way to read in from a text file and store each "column" in an array (I have 2 columns, but a general solution would be great as well). For instance, I'd like the input</p>
  
  <pre><code>    1 2
      3 4
      5 6
  </code></pre>
  
  <p>to be read into two arrays, say, x and y, such that x=[1 3 5] and y=[2 4 6]. I have a working solution (might not compile, just free-handed it), but I feel like there is a more efficient way to do this than to hcat and to read the input file line by line. Any suggestions are much appreciated!</p>
  
  <p>Currently, I am doing the following, more or less:</p>
  
  <pre><code>x=[]; 
  y=[]; 
  f=open("filename"); 
  f=readlines(f); 
  for str in f 
       s1, s2= split(str, " "); 
       s1=int(s1); 
       s2=int(s2); 
       x=hcat(x, s1); 
       y=hcat(y, s2);
  end
  </code></pre>