[Gnuplot-info] how to get awk recognize variables defined in gnuplot?

[Jon <dev...@gm...>]

Dear All,

I need to do something like this, use awk to filter out data within a
specific range whose limit is externally defined, say something like the
following,

plot "< awk ' ($1<s1) || ($1>s2) { print $1, $3 } ' fort.47" u 1:2 w l

here s1, s2 are variables defined in gnuplot to specify lower and upper
limit.

The above does not work, as I think awk does not recognize s1 and s2 defined
within gnuplot, how can I possibly fix it? Thanks,

Sincerely,
Jon