Line plot in GnuPlot where line color is a third column in my data file?

Question

I have a datafile that looks like this:

1 1.0 0
2 1.5 0
3 0.0 1
4 1.2 2
5 1.0 1
6 1.1 1

where the first column is my X value, the second co

Answer 1

plot 'foo.dat' with lines linecolor variable

or abbreviated:

plot 'foo.dat' w l lc var