title: dplyr filter () ignores the rows with the value 0, how to change that
body: <p>In my case, I need the filter function to consider the rows with value 0, but it ignores that.</p>
  
  <p>So I have this data attached and I want to filter out the values of flowers separately for s1 and s2 names. My table is case1</p>
  
  <p><img src="https://i.stack.imgur.com/UAu5Y.png" alt="enter image description here"></p>
  
  <pre><code>  s1= filter(case1, Flower,Name=="s1")
    s2= filter(case1, Flower,Name=="s2")
  </code></pre>
  
  <p>This statement runs well, but it ignores the 0 values. I also want to include the 0 values in my analysis. So, how shall I make it to accept that.</p>
  
  <p>EDIT following the comment</p>
  
  <pre><code>Flower,Name,Pl
  10, s1, WI
  10, s1, WO
  30, s1, EI
  0,  s1, EO
  0,  s2, EI
  0,  s2, EO
  0,  s1, WI
  0,  s2, WO
  0,  s2, WO
  3,  s2, WI
  50, s2, EI
  0,  s1, EO
  0,  s1, EI
  </code></pre>
  
  <p>Expected output:</p>
  
  <p>For s1 all values of s1  something like this(including rows with Flower 0)</p>
  
  <pre><code>Flower, Name, Pl
  10, s1, WI
  10, s1, WO
  30, s1, EI
  0,  s1, EO
  </code></pre>
  
  <p>For s2, all values of s2, something like that</p>
  
  <pre><code>Flower, Name, Pl
  0,  s2, WO
  0,  s2, WO
  3,  s2, WI
  50, s2, EI
  </code></pre>