[Pw_forum] want to calculate Thermal expansion coefficient and Gruneisen parameter

[Peram sreenivasa reddy]

Dear pw_forum members,

   I want to study thermal properties of a X2YZ type compound. I run QHA
successfully. In that QHA.out file i am getting only Cv, Free energy,
Internal energy and Entropy.

  I want to calculate Thermal expansion coefficient and Gruneisen parameter.

Please advise me how to calculate these two parameters.
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