plot.boosting: Boosting plot function

In SurvBoost: Gradient Boosting for Survival Data

Description

This function allows you to visualize the coefficient paths of the boosting algorithm.

Usage

## S3 method for class 'boosting'
plot(x, y = NULL, type = "frequency", ...)

Arguments

x	output from the boosting_core function.
y	y coordinates of plot, default is NULL.
type	specifies type of coefficient plot. Default value is frequency which plots the proportion of variables selected. Alternatively type set to "coefficients" plots the coefficient path for each variable.
...	ignored

Examples

data <- simulate_survival_cox(true_beta=c(1,1,1,1,1,0,0,0,0,0))
formula <- as.formula("Surv(time,delta) ~ strata(strata_idx) + V1 + V2 + 
V3 + V4 + V5 + V6 + V7 + V8 + V9 + V10" )
boosting.output <- boosting_core(formula, data, rate=0.1, num_iter=500)
plot.boosting(boosting.output)
plot.boosting(boosting.output, type="coefficients")

SurvBoost documentation built on Sept. 20, 2019, 5:04 p.m.