set title '2-D Interpolation Error Data, Resolution 2'
plot 'rms.out' u 1:6 t 'Order 2' w lp, \
'' u 1:7 t 'Order 3' w lp, \
'' u 1:8 t 'Order 4' w lp, \
'' u 1:9 t 'Order 5' w lp;