gmvjoint (version 0.4.0)

fixef.joint: Extract fixed effects from a joint object.

Description

Extract fixed effects from a joint object.

Usage

# S3 method for joint
fixef(object, what = c("long", "surv"), ...)

Value

A vector containing requested fixed effects.

Arguments

object

a joint model fit by the joint function.

what

character string. Should the "long"itudinal process(es) be extracted, or the "surv"ival ones?

...

additional arguments (none used).

Author

James Murray ().

See Also

ranef.joint

Examples

# Univariate fit on PBC data -------------------------------------------
data(PBC)

# Subset data and remove NAs
PBC <- subset(PBC, select = c('id', 'survtime', 'status', 'drug', 'time',
                              'albumin'))
PBC <- na.omit(PBC) 

# Specify simple univariate fit
long.formulas <- list(
  albumin ~ time + (1 + time|id)
)
surv.formula <- Surv(survtime, status) ~ drug

fit <- joint(long.formulas, surv.formula, PBC, family = list('gaussian'))

fixef(fit, 'long')
fixef(fit, 'surv')