coef {stats} | R Documentation |
coef
is a generic function which extracts model coefficients
from objects returned by modeling functions. coefficients
is
an alias for it.
coef(object, ...) coefficients(object, ...) ## Default S3 method: coef(object, complete = TRUE, ...) ## S3 method for class 'aov' coef(object, complete = FALSE, ...)
object |
an object for which the extraction of model coefficients is meaningful. |
complete |
for the default (used for |
... |
other arguments. |
All object classes which are returned by model fitting functions
should provide a coef
method or use the default one.
(Note that the method is for coef
and not coefficients
.)
The "aov"
method does not report aliased coefficients (see
alias
) by default where complete = FALSE
.
The complete
argument also exists for compatibility with
vcov
methods, and coef
and aov
methods for
other classes should typically also keep the complete = *
behavior in sync. By that, with p <- length(coef(obj, complete = TF))
,
dim(vcov(obj, complete = TF)) == c(p,p)
will be fulfilled for both
complete
settings and the default.
Coefficients extracted from the model object object
.
For standard model fitting classes this will be a named numeric vector.
For "maov"
objects (produced by aov
) it will be a matrix.
Chambers, J. M. and Hastie, T. J. (1992) Statistical Models in S. Wadsworth & Brooks/Cole.
fitted.values
and residuals
for related methods;
glm
, lm
for model fitting.
x <- 1:5; coef(lm(c(1:3, 7, 6) ~ x))