set title '2-D Interpolation Error Data, Resolution 4'

plot 'rms.out' u 1:14 t 'Order 2' w lp, \
     ''        u 1:15 t 'Order 3' w lp, \
     ''        u 1:16 t 'Order 4' w lp, \
     ''        u 1:17 t 'Order 5' w lp;