summary.varFunc {nlme} | R Documentation |
A structName
attribute, with the value of corresponding
argument, is appended to object
and its class is changed to
summary.varFunc
.
summary(object, structName)
object |
an object inheriting from class varFunc ,
representing a variance function structure. |
structName |
an optional character string with a description of
the varFunc class. Default depends on the method function:
"Combination of variance functions" for varComb ,
"Constant plus power of covariate" for varConstPower ,
"Exponential of variance covariate" for varExp ,
"Different standard deviations per stratum" for varIdent ,
"Power of variance covariate" for varPower , and
data.class(object) for varFunc . |
an object similar to object
, with an additional attribute
structName
, inheriting from class summary.varFunc
.
Jose Pinheiro and Douglas Bates
data(Orthodont) vf1 <- varPower(0.3, form = ~age) vf1 <- initialize(vf1, Orthodont) summary(vf1)