get_form_joint: Interprets a Poisson joint formula and makes necessary...

In Colossus: "Risk Model Regression and Analysis with Complex Non-Linear Models"

Interprets a Poisson joint formula and makes necessary changes to data

Description

get_form_joint uses two event formula, a shared formula, and data.table, to fully describe the model for a joint Poisson model.

Usage

get_form_joint(formula_list, df, nthreads = as.numeric(detectCores())/2)

Arguments

formula_list	a list of formula objects, each written in Colossus notation. See the Unified Equation Representation vignette for details. Each formula should include the elements specific to the specified event column. The list can include an entry named "shared" to denote shared terms. The person-year and strata columns should be the same.
df	a data.table containing the columns of interest
nthreads	number of threads to use, do not use more threads than available on your machine

Value

returns a class fully describing the model and the updated data

See Also

Other Formula Interpretation: ColossusCoxSurv(), ColossusLogitSurv(), ColossusPoisSurv(), get_form()

Colossus documentation built on Feb. 20, 2026, 5:10 p.m.