title: Gnuplot, how to *skip* missing data files?
body: <p>Depending on various factors i may not have 1 or more data files, referenced in pre-defined gnuplot plot instructions, that don't exist. When this is the case i get <em>"warning: Skipping unreadable file"</em> which cancels the rest of the instructions.</p>
  
  <p>Is there any way i can ask gnuplot to skip any missing data files and plot all of the existing ones?</p>