How to match vector of strings with dataframe column in r : <p>I have a vector of column like following</p>

<pre><code>   a = "ASDRT" "GTYHE" "AQWER" QWERT"
</code></pre>

<p>And I have a dataframe like following</p>

<pre><code>      ID.           Amount

   SDFGH.       45
   ASDRT.        67
   AQWER.      88
   TYUIIO.        543
   QWERT.        32
</code></pre>

<p>I want to match vector values with ID column of dataframe and if there is a match it will print 1 else 0</p>

<p>Desired output</p>

<pre><code>      ID.         Amount.        Match
    SDFGH.       45.               0
   ASDRT.        67.               1
   AQWER.      88.                1
   TYUIIO.        543.             0
   QWERT.        32.              1
</code></pre>

<p>How can I do it in R ?</p>
