gnuplot parancsok:

3d-ben ábrázol:
splot 'adatfile.dat' using i:j:k with points
set xlabel 'x-tengely'

replot
set logscale
plot 'tb04_4e2_8.dat' using 1:3 with lines
set xrange[1:1000]
plot 'tb04_4e2_8.dat' using 1:2 with points 
set xrange[0.1:20]
plot  "folytkim_abs.dat" using 1:2 with lines title 'vx', \
"folytkim_abs.dat" using 1:3 with lines title 'vy', \
"folytkim_abs.dat" using 1:4 with lines title 'vz', \
 1/x title  '1/x'

set out 'kep.eps' 
set term postscript color enhanced linewidth 2.0 butt "Helvetica" 28
replot



Mogy fele szimulacios file-okbol kovariancia rajzolasa:

Eloszor definialjuk a sorok nevet tartalmazo valtozokat
gnuplot> load "makrok3.txt"

Ezutan rajzolhatunk
lin-lin skalaval:
gnuplot> plot "henger3d.txt" using @t:@vx_vx

lin-log skalaval:
gnuplot> plot "henger3d_log.txt" using @t:@y2_y2 w points

log-lin skalaval:
gnuplot> plot "henger3d.txt" using @logt:@csa1_csa1 w points

log-log skalaval:
gnuplot> plot "henger3d_log.txt" using @logt:@vx2_vx2 w points