# simPH v0.8.4

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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 nonproportional hazards, as well as stratified survival curves from Cox Proportional Hazard models.

## Functions in simPH

 Name Description CarpenterFdaData A data set from Carpenter (2002). ggfitStrata Graph fitted stratified survival curves from Cox Proportional Hazards models coxsimLinear Simulate quantities of interest for linear time constant covariates from Cox Proportional Hazards models tvc Create a time interaction variable coxsimtvc Simulate time-varying quantities of interest from Cox Proportional Hazards models coxsimPoly Simulate quantities of interest for a range of values for a polynomial nonlinear effect from Cox Proportional Hazards models simGG.siminteract Plot simulated linear multiplicative interactions from Cox Proportional Hazards Models simGG.simlinear Plot simulated linear time-constant quantities of interest from Cox Proportional Hazards Models simGG.simtvc Plot simulated time-varying hazard ratios or stratified time-varying hazard rates from Cox Proportional Hazards Models simGG A method for plotting simulation objects created by simPH 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 simGG.simpoly Plot simulated polynomial quantities of interest from Cox Proportional Hazards Models GolubEUPData A data set from Golub & Steunenberg (2007) No Results!