reset
set grid
set key default
set title 'X Coord.'
set xlabel 'Points'
set ylabel '[mm]'
plot 'data.txt' using 1 title 'X Coord.' with linespoints
pause -1
set title 'Y Coord.'
plot 'data.txt' using 2 title 'Y Coord.' with linespoints
pause -1
set title 'Z Coord.'
plot 'data.txt' using 3 title 'Z Coord.' with linespoints
pause -1
set title 'X,Y and Z Coord.'
plot 'data.txt' using 1 title 'X Coord.' with linespoints,\
'data.txt' using 2 title 'Y Coord.' with linespoints,\
'data.txt' using 3 title 'Z Coord.' with linespoints
pause -1
set y2tics
plot 'data.txt' using 1 title 'X Coord.' with linespoints axes x1y1, \
'data.txt' using 2 title 'Y Coord.' with linespoints axes x1y1,\
'data.txt' using 3 title 'Z Coord.' with linespoints axes x1y2