title: How to skip comments line in data file I want to import, with R
body: <p>I've many string files (.str), and I want to import them in R (looping on files).
  The problem is that the first line is neither columns name nor the beginning of the matrix.. It is a comment line. Idem for the last line.
  between those two lines, stand up the matrix I want to import..
  How can I do that ?</p>
  
  <p>Thx</p>