6.7.10.1.4. statsmodels.sandbox.regression.tools.norm_lls¶
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statsmodels.sandbox.regression.tools.
norm_lls
(y, params)[source]¶ normal loglikelihood given observations and mean mu and variance sigma2
Parameters: y : array, 1d
normally distributed random variable
params: array, (nobs, 2)
array of mean, variance (mu, sigma2) with observations in rows
Returns: lls : array
contribution to loglikelihood for each observation