![[Stable]](figures/lifecycle-stable.svg)
Declare whether covariates in the data are to have
interpolation between values or not.
Arguments
- type
If type = "lm" (the default) or type = "linear",
the covariate value will be
linearly interpolated between values when fitting the model to the data.
in a model list cov item. To fix covariate values to the value at the
last time point, set type = "none".
Value
A value of 1 for "lm" and 0 for "none", which will be passed to Rust.
Examples
if (FALSE) { # \dontrun{
cov <- c(
wt = interp(), # same as interp("lm") or interp("linear")
visit = interp("none")
)
} # }