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Interpolation error creating a delta chi2 = 20 on DESI likelihood
Hi @cmbant @JesusTorrado
In both CAMB and CLASS (older version of Cobaya - so I have not tested if this problem is absent on new versions). I was getting chi2 ~40 for DESI and horrible predictions on bin z = 1.4
Then I made this change (picture attached)
and chi2 drop to 20.
With the fix (random cosmology - see the z=1.49 prediction and DESI chi2):
Without the fix