Plot survival curve for ncvsurv model — plot.ncvsurv.func • ncvreg

Plot survival curve for a model that has been fit using ncvsurv() followed by a prediction of the survival function using predict.ncvsurv().

# S3 method for ncvsurv.func
plot(x, alpha = 1, ...)

Arguments

x: A ncvsurv.func object, which is returned by predict.ncvsurv() if type='survival' is specified. See examples.
alpha: Controls alpha-blending (i.e., transparency). Useful if many overlapping lines are present.
...: Other graphical parameters to pass to plot

See also

ncvsurv(), predict.ncvsurv()

Author

Patrick Breheny

Examples

data(Lung)
X <- Lung$X
y <- Lung$y

fit <- ncvsurv(X, y)

# A single survival curve
S <- predict(fit, X[1,], type='survival', lambda=.15)
plot(S, xlim=c(0,200))


# Lots of survival curves
S <- predict(fit, X, type='survival', lambda=.08)
plot(S, xlim=c(0,200), alpha=0.3)