How can I change date type for graph labels
<p><a href="https://i.stack.imgur.com/ujL3G.gif" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ujL3G.gif" alt="enter image description here"></a></p>

<p>You can see <code>out[7]</code> -> date type <code>2015.01.02</code>
but
You can see o<code>ut[17]</code> -> <code>x-axis</code> on graph only shows <code>0, 50, 100</code></p>

<p>How can I change <code>x-axis</code> like <code>2015.01.02</code></p>

<p>Any suggestions on this please ?</p>