Dropping rows in R
<p>I have a data frame which has multiple rows and columns</p>

<pre><code>Data       C1         C2         C3 
R1     12         33         11
R2     11         2           0
R3      3         3           0
R4      2         3           1
</code></pre>

<p>and so on..</p>

<p>How can i drop all the rows from the data frame for which the C3 values are non zero?</p>

<p>The output data should look like</p>

<pre><code>Data       C1         C2         C3
R2     11         2           0
R3      3         3           0
</code></pre>