TMB FitProcessing the Formula for TMB Fit
h_mmrm_tmb_formula_parts(
formula,
covariance = as.cov_struct(formula, warn_partial = FALSE)
)List of class mmrm_tmb_formula_parts with elements:
formula: the original input.
model_formula: formula with the covariance term is removed.
model_formula: formula with the covariance term removed.
full_formula: same as model_formula but includes the covariance
structure's subject, visit and (optionally) group variables.
cov_type: string with covariance term type (e.g. "us").
is_spatial: flag indicator of whether the covariance structure is
spatial
visit_var: character with the visit variable name.
subject_var: string with the subject variable name.
group_var: string with the group variable name. If no group specified,
this element is NULL.
model_var: character with the variables names of the formula, except subject_var.
response_var: string with the response variable name.
(formula)
Original formula.
(cov_struct)
A covariance structure from which
additional formula parts should be added.