title: Construction of matrix failed
body: <p>Why is my below statement in R failing? I am trying to fill the matrix by column instead of rows.</p>
  
  <pre><code>&gt;matrix.new &lt;-matrix(c(1,2,3,4,5,6),nrow=2,bycol=true)
  Error in matrix(c(1, 2, 3, 4, 5, 6), nrow = 2, bycol = true) : 
    unused argument(s) (bycol = true)
  </code></pre>
  
  <p>I want the matrix to be like:</p>
  
  <pre><code>1 2 3
  4 5 6
  </code></pre>
  
  <p>Suggestions?</p>