title: Python Array Copying
body: <p>I'm trying to figure out how to copy an array output into a new array for multiple iterations.  The scenario is to run a function in a for loop with varying inputs then overlay the results on a single plot for comparison.  Currently I have it running where I get three arrays from the for loop, but this results in three independent plots.</p>
  <p>My coding is not very solid so some guidance would be appreciated.  I was reading up on the list copy function but have not been able to get it to do what I want.</p>
  <pre><code>for z,wn in mylist:
      G1 = y_numeric(z,wn)
      #np.array(output[i,:])=G1.copy()
      #plt.figure()
      #plt.plot(t,G1[:])
      #print(G1)
      #print(output)
  </code></pre>