Set datafile commentschars

The set datafile commentschars command allows you to tell gnuplot what characters are used in a data file to denote comments. Gnuplot will ignore rest of the line behind the specified characters if either of them is the first non-blank character on the line.

Syntax:

     set datafile commentschars {"<string>"}
     show datafile commentschars
     unset commentschars

Default value of the string is "#!" on VMS and "#" otherwise.

Then, the following line in a data file is completely ignored

   # 1 2 3 4

but the following

   1 # 3 4

produces rather unexpected plot unless

   set datafile missing '#'

is specified as well.

Example:

     set datafile commentschars "#!%"