statsmodels.stats.meta_analysis._fit_tau_mm¶
- statsmodels.stats.meta_analysis._fit_tau_mm(eff, var_eff, weights)[source]¶
one-step method of moment estimate of between random effect variance
implementation follows Kacker 2004 and DerSimonian and Kacker 2007 eq. 6
- Parameters:
eff (ndarray) – effect sizes
var_eff (ndarray) – variance of effect sizes
weights (ndarray) – weights for estimating overall weighted mean
- Returns:
tau2 – estimate of random effects variance tau squared
- Return type:
