title: 3D scatter plots in Matlab
body: <p>I'm fairly new to Matlab and would appreciate some help. I'm trying to graph a scatter plot of a function. Later on I'm going to fit other functions to this data and plot that on the same figure. But what I have so far plots the markers all in one plane, which isn't what I want. The function is 2D, the graph should be 3D. How do I get this?</p>
  
  <p>Here's what I've been trying so far. There's some other code before this that generates different values for f(i,j) given different parameters, so when I implement the code I get a series of figures.</p>
  
  <pre><code>for i=1:somenumber
      for j=1:somenumber
          f(i,j)=etc.
      end
  end
  
  figure;
  x=1:somenumber;
  plot3(x,f,x,'rs');
  hold on;
  </code></pre>