CoxCurveSolver: Calculates the likelihood curve for a cox model directly

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

Calculates the likelihood curve for a cox model directly

Description

CoxCurveSolver solves the confidence interval for a cox model, starting at the optimum point and iteratively optimizing end-points of intervals. Intervals updated using the bisection method.

Usage

CoxCurveSolver(
  df,
  time1 = "%trunc%",
  time2 = "%trunc%",
  event0 = "event",
  names = c("CONST"),
  term_n = c(0),
  tform = "loglin",
  keep_constant = c(0),
  a_n = c(0),
  modelform = "M",
  control = list(),
  strat_col = "null",
  cens_weight = "null",
  model_control = list(),
  cons_mat = as.matrix(c(0)),
  cons_vec = c(0)
)

Arguments

df	a data.table containing the columns of interest
time1	column used for time period starts
time2	column used for time period end
event0	column used for event status
names	columns for elements of the model, used to identify data columns
term_n	term numbers for each element of the model
tform	list of string function identifiers, used for linear/step
keep_constant	binary values to denote which parameters to change
a_n	list of initial parameter values, used to determine the number of parameters. May be either a list of vectors or a single vector.
modelform	string specifying the model type: M, ME, A, PA, PAE, GMIX, GMIX-R, GMIX-E
control	list of parameters controlling the convergence, see Def_Control() for options or vignette("Control_Options")
strat_col	column to stratify by if needed
cens_weight	column containing the row weights
model_control	controls which alternative model options are used, see Def_model_control() for options and vignette("Control_Options") for further details
cons_mat	Matrix containing coefficients for a system of linear constraints, formatted as matrix
cons_vec	Vector containing constants for a system of linear constraints, formatted as vector

Value

returns a list of the final results

See Also

Other Cox Wrapper Functions: RunCaseControlRegression_Omnibus(), RunCoxNull(), RunCoxRegression(), RunCoxRegression_Basic(), RunCoxRegression_CR(), RunCoxRegression_Guesses_CPP(), RunCoxRegression_Omnibus(), RunCoxRegression_Omnibus_Multidose(), RunCoxRegression_Single(), RunCoxRegression_Strata(), RunCoxRegression_Tier_Guesses()

Colossus documentation built on June 8, 2025, 1:10 p.m.