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
- eff
- Returns:
- tau2
float estimate of random effects variance tau squared
- tau2
