Thank you very much dear Lyudmila.

I think your suggestion is correct. But i have a question about clmextrapol_lapw. How can i use this script. Is the below steps correct?

1- First i run the program with lattice parameter 6.08 or 6.98 
2- save_lapw -d xxx
3-changing struct file (lattice parameter) 
4-runsp_lapw

or after step 2 i have to run initial_lapw.
