title: how to use scale and dist with a dataset with column name
body: <p>Trying to scale a dataset with 9 variables to be prepared for clustering. My data has headers (column names). It keeps giving me this response.
  I have already excluded the rownames in the dataset</p>
  
  <p>Warning message:
  In dist(DF, method = "euclidean") : NAs introduced by coercion</p>
  
  <blockquote>
    <p>View(DF)
    Error in View : cannot coerce class ""dist"" to a data.frame</p>
  </blockquote>