title: Converting key value pair into a data frame
body: <p>I have a key value data in the following format now </p>
  
  <pre><code>  column1          column2            column3
    length:30         width:20                          
    length:20          height:10         width:10 
  </code></pre>
  
  <p>Now i want to convert this into a data frame in the following format</p>
  
  <pre><code>Length                    width        height    
   32                         20       
   40                         30          10 
  </code></pre>
  
  <p>Thanks in advance</p>