title: An array of arrays of different sizes
body: <p>I'm learning R and I'd like to make an "array of arrays" (not sure if the expression is correct) inserting for example these values</p>
  
  <pre><code>N_seq = c(10,50,100,500,1000)
  </code></pre>
  
  <p>inside this function (not correct):</p>
  
  <pre><code>x = rnorm(N_seq,3.2,1)
  </code></pre>
  
  <p>The desired result should be like an object made by five arrays (as <code>length(N_seq) = 5</code>) where each one is equal to the result of <code>x</code> inserting each value of <code>N_seq</code> (so that <code>x[1]</code> has the values of <code>rnorm(N_seq[i], 3.2, 1)</code> with length 10, and <code>x[2]</code> has the values <code>rnorm(N_seq[2], 3.2, 1)</code> with length 50, etc.</p>