needUpdate {nlme} | R Documentation |
This function is generic; method functions can be written to handle
specific classes of objects. By default, it tries to extract a
needUpdate
attribute of object
. If this is NULL
or FALSE
it returns FALSE
; else it returns TRUE
.
Updating of objects usually takes place in iterative algorithms in
which auxiliary quantities associated with the object, and not being
optimized over, may change.
needUpdate(object)
object |
any object |
a logical value indicating whether object
needs to be updated.
Jose Pinheiro Jose.Pinheiro@pharma.novartis.com and Douglas Bates bates@stat.wisc.edu
vf1 <- varExp() vf1 <- Initialize(vf1, data = Orthodont) needUpdate(vf1)