# simPH v1.2.3

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## Tools for Simulating and Plotting Quantities of Interest Estimated From Cox Proportional Hazards Models

The package simulates and plots quantities of interest (relative hazards, first differences, and hazard ratios) for linear coefficients, multiplicative interactions, polynomials, penalised splines, and non-proportional hazards, as well as stratified survival curves from Cox Proportional Hazard models. It also simulates and plots marginal effects for multiplicative interactions.

## Functions in simPH

 Name Description simGG.siminteract Plot simulated linear multiplicative interactions from Cox Proportional Hazards Models coxsimSpline Simulate quantities of interest for penalized splines from Cox Proportional Hazards models coxsimInteract Simulate quantities of interest for linear multiplicative interactions */ from Cox Proportional Hazards models simGG.simspline Plot simulated penalised spline hazards from Cox Proportional Hazards Models CarpenterFdaData A data set from Carpenter (2002). simPH An R package for simulating and plotting quantities of interest from Cox Proportional Hazard models. simGG A method for plotting simulation objects created by simPH tvc Create a time interaction variable GolubEUPData A data set from Golub & Steunenberg (2007) SurvExpand Convert a data frame of non-equal interval continuous observations into equal interval continuous observations MinMaxLines Transform the simulation object to include only the min and max of the constricted intervals, as well as the lower and upper bounds of the middle 50 percent of the constricted intervals simGG.simpoly Plot simulated polynomial quantities of interest from Cox Proportional Hazards Models ggfitStrata Graph fitted stratified survival curves from Cox Proportional Hazards models simGG.simlinear Plot simulated linear, non-time interacted quantities of interest from Cox Proportional Hazards Models setXl Create a sequence of Xl values simGG.simtvc Plot simulated time-interactive hazard ratios or stratified time-interactive hazard rates from Cox Proportional Hazards Models coxsimtvc Simulate time-interactive quantities of interest from Cox Proportional Hazards models coxsimLinear Simulate quantities of interest for covariates from Cox Proportional Hazards models that are not interacted with time or nonlinearly transformed coxsimPoly Simulate quantities of interest for a range of values for a polynomial nonlinear effect from Cox Proportional Hazards models No Results!