How to create a list of lists of integers from DataFrame?
<p>I have Data Frame:</p>

<pre><code>Values    Values2
1,2,3,4   0,2,3
2,1,0,6   0,0,0
9,8,7,6   1,0,1
</code></pre>

<p>I want to create list of lists. I do that in following way:</p>

<pre><code>df[['Values']].values.tolist()
</code></pre>

<p>In output a get:</p>

<pre><code>[['1,2,3,4'],
 ['2,1,0,6'],
 ['9,8,7,6']]
</code></pre>

<p>It's a strings but I need a lists of integer like that:</p>

<pre><code> [[1,2,3,4],
  [2,1,0,6],
  [9,8,7,6]]
</code></pre>

<p>How can I do that?</p>