* generation.dat

The output format would be

$N_{\lambda}~~ N_{y}~~ N_{x}$
$\lambda_{1}~~\lambda_{2}~~\lambda_{3}~~...\lambda_{N_{lambda}}$ 
x y TE_generations  TM_generations (TE+TM)/2_generationrates
x y TE_generations  TM_generations (TE+TM)/2_generationrates
x y TE_generations  TM_generations (TE+TM)/2_generationrates
...
...     $\lambda_{1}$
 $x_{N_x}$ $y_{N_y}$ TE_generations  TM_generations (TE+TM)/2_generationrates
$x_{1}$ $y_{1}$ TE_generations  TM_generations (TE+TM)/2_generationrates
$x_{2}$ $y_{2}$ TE_generations  TM_generations (TE+TM)/2_generationrates
$x_{3}$ $y_{3}$ TE_generations  TM_generations (TE+TM)/2_generationrates
...
...     $\lambda_{2}$
 $x_{N_x}$ $y_{N_y}$ TE_generations  TM_generations (TE+TM)/2_generationrates
$x_{1}$ $y_{1}$ TE_generations  TM_generations (TE+TM)/2_generationrates
$x_{2}$ $y_{2}$ TE_generations  TM_generations (TE+TM)/2_generationrates
$x_{3}$ $y_{3}$ TE_generations  TM_generations (TE+TM)/2_generationrates
...
...     $\lambda_{3}$
 $x_{N_x}$ $y_{N_y}$ TE_generations  TM_generations (TE+TM)/2_generationrates
$x_{1}$ $y_{1}$ TE_generations  TM_generations (TE+TM)/2_generationrates
$x_{2}$ $y_{2}$ TE_generations  TM_generations (TE+TM)/2_generationrates
$x_{3}$ $y_{3}$ TE_generations  TM_generations (TE+TM)/2_generationrates
...
...     $\lambda_{N_{\lambda}}$
 $x_{N_x}$ $y_{N_y}$ TE_generations  TM_generations (TE+TM)/2_generationrates