datafile sample.dat 6
xycolumn 1 6
tlabel 3-COMPONENT MODEL
xlabel F\dI\u
ylabel \(648)\u2\d
setc 1.5
setlw 3
env 0 1 5 20
line
plot 6
line
plot 6
line
plot 6
line
plot 7
label
labels
setls 2
repeat 4
line
plot 6
endrepeat
labels
quit