plot data of time interval type in R <p>these data are exported from <code>postgresql</code> of <code>interval</code> type, for example:</p> <pre><code>1 00:01:30 2 00:07:00 3 00:07:00 4 00:03:00 5 00:02:00 6 00:03:30 7 -00:02:00 ... </code></pre> <h3>what i want</h3> <p>I want to see the distribution of these data, and what's more, I want to get the decile of the distribution, even if it's interval time.</p> <h3>what I did</h3> <ol> <li><p>I used the :</p> <pre><code>COPY (SELECT the_interval from the_table) TO '/some/file/path.txt'; </code></pre> <p>to get the file <code>path.txt</code>.</p></li> <li><p>then I used</p> <pre><code>tools -&gt; import datasets -&gt; from loalfile </code></pre> <p>to get the data imported into workset of <code>R</code> with <code>RStudio</code>.</p></li> </ol> <h3>what I am asking</h3> <p>I'm new to <code>R</code>, and I want to know: do I need to transfer the data into <code>time</code> type in R, or any function I could use to plot these data. Or any further, you can propose me any better way you think that it would achieve the goal I expressed.</p> <p>Thanks a lot!</p>