convert 1 character string into numeric values
<p>I would like to convert a charter sequence into a numeric sequence.</p>

<p>My variable is called labCancer and is made like this:</p>

<pre><code>labCancer

[1] M M M M M M M M M M M M M M M M M M M B B B M M M M M M M M M M M M M M M B
</code></pre>

<p>I would like to have:</p>

<pre><code>[1] 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 1 1 1 1 1 1 1 1 1 1 0
</code></pre>

<p>I tried using</p>

<pre><code>labCancer_2 &lt;- labCancer 

for (i in 1:569)    {
  if (labCancer[i] == "M") {
    labCancer_2[i] &lt;- 1
  } else {

 labCancer_2[i] &lt;- 2

 } }    
</code></pre>

<p>but it doesn't work.</p>

<p>Andrea</p>