"where's" my line

[Daniel J S. <dan...@ie...>]

In data file 'data.dat' put the lines

1 0.5
9 0.5

Then try the following from gnuplot's command line:

gnuplot> set xrange [0:10]
gnuplot> plot sin(x), 'data.dat' with line

There's a green line.  Now

gnuplot> set xrange [2:8]
gnuplot> replot

and there's no green line anymore.  Shouldn't there be a line visible?

Dan