fixcoef {glmglrt} | R Documentation |
Generic function to get fixed effects of a model
Description
This is a generic S3 function that gets point estimates of fixed effects of a statistical model, implemented on a wide range of models and that can be extended to new models.
Usage
fixcoef(model, ...)
## S3 method for class 'lmerMod'
fixcoef(model, ...)
## S3 method for class 'glmerMod'
fixcoef(model, ...)
## S3 method for class 'lmerModLmerTest'
fixcoef(model, ...)
## S3 method for class 'lme'
fixcoef(model, ...)
## S3 method for class 'multinom'
fixcoef(model, ...)
## S3 method for class 'mlm'
fixcoef(model, ...)
## Default S3 method:
fixcoef(model, ...)
Arguments
model |
a fitted statistical model |
... |
argument unused by |
Details
It must return only estimates of fixed-effects of a model. Random effects are ignored.
The names
of the element of this vector must be consistent
with the rownames
and colnames
of the variance-covariance matrix that vcov_fixcoef
returns.
The vcov_fixcoef
function, on the same model, must return a matrix
with the same number and names of rows and columns as the length of the vector returned by fixcoef
.
The functions vcov_fixcoef
and fixcoef
would be pointless if the behavior of
vcov
and coef
were not inconsistent from package to package.
fixcoef
and vcov_fixcoef
, together with df_for_wald
are used by p_value_contrast.default
Value
Simple numeric vector with one item for each fixed effect of the model.
Methods (by class)
-
lmerMod
: implementation forlme4::lmer
-
glmerMod
: implementation forlme4::glmer
-
lmerModLmerTest
: implementation forlmerTest::lmer
-
lme
: implementation fornlme::lme
-
multinom
: implementation fornnet::multinom
-
mlm
: implementation for multiple responses linear models generated bystats::lm
when the response is a matrix. It transforms the matrix to a vector, consistent withstats::vcov
. -
default
: default implementation, simply calls coef(model).
See Also
Other Wald-related functions:
df_for_wald()
,
p_value_contrast()
,
vcov_fixcoef()
Examples
data(mtcars)
fixcoef(lm(data=mtcars, hp ~ 1)) # get mean horse power of cars listed in mtcars