title: Converting timestamps using strptime - R
body: <p>I have input data with date and time stamps as <code>"140128142257"</code> which is the equivalent of <code>"14/01/28 14:22:57"</code> or <code>"%Y/%m/%d %H:%M:%S"</code>. </p>
  
  <p>I cannot get R to read this in so I can convert it to a usable date and timestamp. Any helpful advice would be appreciated. </p>
  
  <p>Here is what I have tried: </p>
  
  <p><code>datetime    &lt;- as.POSIXct(strptime(date[,2],format="%Y%m%d%H%M%S")</code></p>
  
  <p>However this just gives NA * length of array. </p>