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Extracts vcov from a fitted regression model.
Generic function
Extractor function for vcov.
Diethelm Wuertz for the Rmetrics R-port.
## regSim - x <- regSim(model = "LM3", n = 50) ## regFit - fit <- regFit(Y ~ X1 + X2 + X3, data = x, use = "lm") ## vcov - vcov(fit)
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