title: strfind split keyword within paragraph
body: <p>After the output of keywords in URL, how do I check whether the keywords exist in the content of the page like the content below, if yes then return 1, else return 0. There is strfind at there, but I do not have idea why it cannot work</p>
  
  <pre><code>str = 'http://en.wikipedia.org/wiki/hostname'
  Paragraph = 'hostname From wikipedia, the free encyclopedia Jump to: navigation, search In    computer networking, a hostname (archaically nodename .....'
  SplitStrings = regexp(str,'[/.]','split')
  
  for it = SplitStrings
  c( it{1} ) = strfind(Paragraph, it{1} )
  end
  
  SplitStrings = {};
  
  feature11=(cellfun(@(n) isempty(n), strfind(Paragraph, SplitStrings{1})))
  </code></pre>
  
  <p><img src="https://i.stack.imgur.com/7VYKR.png" alt="enter image description here"></p>
  
  <p>I can do with the below code 4 checking whether 'https' exist or not. But, how to modify the 'SplitString' into 'B6'?</p>
  
  <pre><code>str = 'https://en.wikipedia.org/wiki/hostname'
  
  A6 = regexp(str,'\w*://','match','once')
  B6 = {'https'};
  
  feature6=(cellfun(@(n) isempty(n), strfind(A6, B6{1})))
  </code></pre>