| weighted.residuals | R Documentation |
Computed weighted residuals from a linear model fit.
weighted.residuals(obj, drop0 = TRUE)
obj |
R object, typically of class |
drop0 |
logical. If |
Weighted residuals are based on the deviance residuals, which for
a lm fit are the raw residuals Ri
multiplied by wi^0.5, where wi are the
weights as specified in lm's call.
Dropping cases with weights zero is compatible with
influence and related functions.
Numeric vector of length n', where n' is the number of
of non-0 weights (drop0 = TRUE) or the number of
observations, otherwise.
residuals, lm.influence, etc.
## following on from example(lm)
all.equal(weighted.residuals(lm.D9),
residuals(lm.D9))
x <- 1:10
w <- 0:9
y <- rnorm(x)
weighted.residuals(lmxy <- lm(y ~ x, weights = w))
weighted.residuals(lmxy, drop0 = FALSE)
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