residuals.gls {nlme} | R Documentation |
The residuals for the linear model represented by object
are extracted.
residuals(object, type)
object |
an object inheriting from class gls , representing
a generalized least squares fitted linear model. |
type |
an optional character string specifying the type of
residuals to be used. If "response" , the "raw" residuals
(observed - fitted) are used; else, if "pearson" , the
standardized residuals (raw residuals divided by the corresponding
standard errors) are used; else, if "normalized" , the
normalized residuals (standardized residuals pre-multiplied by the
inverse square-root factor of the estimated error correlation
matrix) are used. Partial matching of arguments is used, so only the
first character needs to be provided. Defaults to "pearson" . |
a vector with the residuals for the linear model represented by
object
.
Jose Pinheiro and Douglas Bates
data(Ovary) fm1 <- gls(follicles ~ sin(2*pi*Time) + cos(2*pi*Time), Ovary, correlation = corAR1(form = ~ 1 | Mare)) residuals(fm1)