satt | R Documentation |
Calculates pooled variance and degree of freedom using Satterthwaite equation.
satt(vars, dfs, ws=c(1, 1))
vars |
a vector of variances |
dfs |
a vector of degree of freedoms |
ws |
a vector of weights |
The input can be more than two variances.
Variance |
approximated variance |
Df |
degree of freedom |
Kyun-Seop Bae k@acr.kr
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