title: Convert string to date, format: "dd.mm.yyyy"
body: <pre><code>D &lt;- "06.12.1948"                 # which is dd.mm.yyyy
  as.Date(D, "%d.%m.%y")            # convert to date
  [1] "2019-12-06"                  # ????    
  </code></pre>
  
  <p>what is it that I am missing?</p>
  
  <blockquote>
    <p>Sys.getlocale(category = "LC_ALL")
    [1] "LC_COLLATE=German_Austria.1252;LC_CTYPE=German_Austria.1252;LC_MONETARY=German_Austria.1252;LC_NUMERIC=C;LC_TIME=German_Austria.1252"</p>
  </blockquote>