| weighted.residuals {stats} | R Documentation |
Computed weighted residuals from a linear model fit.
weighted.residuals(obj, drop0 = TRUE)
obj |
R object, typically of class lm or
glm. |
drop0 |
logical. If TRUE, drop all cases with
weights == 0. |
Weighted residuals are the usual 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.
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)