条件画图:
例一:
plot ‘1.dat’ using 1:($3==0?$2:1/0)
例二:
plot “1.dat” using 1:(stringcolumn(3) eq “a”? $2:1/0) title “a” lc rgb “blue”,\
”” using 1:(stringcolumn(3) eq “b”? $2:1/0) title “b” lc rgb “red”
多窗口:
set term x1 1 plot sin(x) set term x1 2 plot sin(x)