title: R time series with datapoints every 15 min
body: <p>I have a data file containing the raw values of my measurments. The top entries look like that:</p>
  
  <pre><code>495.08
  1117.728
  872.712
  665.632
  713.296
  1172.44
  1302.544
  1428.832
  1413.536
  1361.896
  1126.656
  644.776
  1251.616
  1252.824
  [...]
  </code></pre>
  
  <p>The measurements are done in 15 min intervals. In order to put this in a R time series object I use the following code.</p>
  
  <pre><code>data &lt;- scan("./data__2.dat",skip=1)
  datats &lt;- ts(data, frequency=24*60/15, start=c(2014,1))
  </code></pre>
  
  <p>But this leaves me with:</p>
  
  <p><img src="https://i.stack.imgur.com/NP2YM.png" alt="R output"></p>
  
  <p>Although the data is only from one year. Hence, it seems like the frequency is wrong. Any thoughts on how to fix this?</p>