title: Creating tibble returns error : "How to name Column 1 "
body: <p>I'm attempting to create a single columned tibble where each row is single word from a vector but I'm unsure how to add a column name as the tibble has not been created.</p>
  
  <p>This code : </p>
  
  <pre><code>as_tibble(strsplit("this is a test" , " "))
  </code></pre>
  
  <p>returns error : </p>
  
  <pre><code>Error: Column 1 must be named
  </code></pre>
  
  <p>How to name Column 1 ?</p>
  
  <p>I attempted to add a name to result of </p>
  
  <pre><code>strsplit("this is a test" , " ")
  </code></pre>
  
  <p>but this is a string and so cannot be named ?</p>
  
  <p>[[1]]
  [1] "this" "is"   "a"    "test"</p>