[Gnuplot-info] problem plotting with named columns

[Ben E. <bj...@ai...>]

After a bit of time to reduce my test case, I've finally worked out
why I can't get a named column to work in my plotting command.  I
have:

  gnuplot> plot 'datafile' every 10::2 using "foo":"bar"

This errors out with: could not find column with header "foo".  The
data file is definitely correct: row 1 has "foo" and "bar" headings.

Am I misunderstanding something or is this a bug?

Thanks,
Ben