i <span class="cf">in</span> <span class="dv">1</span><span class="op">:</span><span class="dv">9</span>) {</span>
<span id="cb4-2"><a href="#cb4-2"></a>  breast[, i] &lt;-<span class="st"> </span><span class="kw">as.numeric</span>(<span class="kw">as.character</span>(breast[, i]))</span>
<span id="cb4-3"><a href="#cb4-3"></a>}</span>
<span id="cb4-4"><a href="#cb4-4"></a><span class="co">#Loops through the first columns - 1 to 9 and changes them from factors to a numerical representation</span></span>
<spa