Arguments
x
an object inheriting from class "lme"
, representing
a fitted linear mixed-effects model. form
an optional one-sided formula specifying the desired type of
plot. Any variable present in the original data frame used to obtain
x
can be referenced. In addition, x
itself
can be referenced in the formula using the symbol
"."
. Conditional expressions on the right of a |
operator can be used to define separate panels in a Trellis
display. The expression on the right hand side of form
, and to
the left of the |
operator, must evaluate to a data frame with
at least two columns. Default is ~ coef(.)
, corresponding to
a pairs plot of the coefficients evaluated at the innermost level of
nesting.
label
an optional character vector of labels for the variables
in the pairs plot.
id
an optional numeric value, or one-sided formula. If given as
a value, it is used as a significance level for an outlier
test based on the Mahalanobis distances of the estimated random
effects. Groups with random effects distances greater than the
\(1-value\) percentile of the appropriate chi-square distribution
are identified in the plot using idLabels
. If given as a
one-sided formula, its right hand side must evaluate to a logical,
integer, or character vector which is used to identify points in the
plot. If missing, no points are identified.
idLabels
an optional vector, or one-sided formula. If given as a
vector, it is converted to character and used to label the
points identified according to id
. If given as a
one-sided formula, its right hand side must evaluate to a vector
which is converted to character and used to label the identified
points. Default is the innermost grouping factor.
grid
an optional logical value indicating whether a grid should
be added to plot. Default is FALSE
.
…
optional arguments passed to the Trellis plot function.