I am comparing some functionalities of CLASS and CAMB codes. I will compare power spectrum, auto and cross correlations of density with galaxy lensing.
I calculate the Cross correlations of density with the galaxy lensing for two redshift bins (with different sizes).
Window function = Gaussian.
Checks:
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Integrating the analytical expression using the Limber approximation and using the cosmology from the camb code.
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calculating directly from camb
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comparing both.
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Integrating the analytical expression using the Limber approximation and using the cosmology from the code CLASS.
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calculating directly from the CLASS
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comparing both
To use these files, you should install the latest version of the CAMB and the CLASS codes.