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Last data update: 2014.03.03

R: Plot survival curve for ncvsurv model

plot.ncvsurv.func

R Documentation

Plot survival curve for ncvsurv model

Description

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

Usage

## S3 method for class '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`

Author(s)

Patrick Breheny <patrick-breheny@uiowa.edu>

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=.15)
plot(S, xlim=c(0,200))