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  • statsmodels.genmod.families.links.NegativeBinomial |

statsmodels.genmod.families.links.NegativeBinomial.deriv¶

NegativeBinomial.deriv(p)[source]¶

Derivative of the negative binomial transform

Parameters:p (array-like) – Mean parameters
Returns:g’(p) – The derivative of the negative binomial transform link function
Return type:array

Notes

g’(x) = 1/(x+alpha*x^2)

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