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sasLM (version 0.5.0)

satt: Satterthwaite Approximation of Pooled Variance and Degree of Freedom

Description

Calculates pooled variance and degree of freedom using Satterthwaite equation.

Usage

satt(ws, vars, dfs)

Arguments

ws

a vector of weights

vars

a vector of variances

dfs

a vector of degree of freedoms

Value

Variance

pooled variance

Df

degree of freedom

Details

The input can be more than two variances.