Nothing
library(survival, quietly=TRUE)
# Linear
data(Prostate, package='ncvreg')
X <- Prostate$X
y <- Prostate$y
cvfit <- cv.ncvreg(X, y)
summary(cvfit)
plot(cvfit, type='rsq')
summary(lm(y~X))
# Residuals: Gaussian
lmfit <- lm(y~X)
fit <- ncvreg(X, y, lambda.min=0)
nl <- c(nrow(X), length(fit$lambda))
expect_equal(dim(fit$linear.predictors), nl)
expect_equal(dim(residuals(fit)), nl)
expect_equal(fit$linear.predictors[,100], lmfit$fitted.values)
expect_equal(residuals(fit)[,100], residuals(lmfit))
# Logistic
data(Heart, package='ncvreg')
X <- Heart$X
y <- Heart$y
cvfit <- cv.ncvreg(X, y, family='binomial')
summary(cvfit)
plot(cvfit, type='rsq')
l1 = logLik(glm(y~X, family='binomial'))[1]
l0 = logLik(glm(y~1, family='binomial'))[1]
1 - exp(-2/length(y) * (l1 - l0))
# Residuals: Logistic
glmfit <- glm(y~X, family='binomial')
fit <- ncvreg(X, y, family='binomial', lambda.min=0)
nl <- c(nrow(X), length(fit$lambda))
expect_equal(dim(fit$linear.predictors), nl)
expect_equal(dim(residuals(fit)), nl)
expect_equal(fit$linear.predictors[,100], glmfit$linear.predictors, tolerance=0.0001)
expect_equal(residuals(fit)[,100], residuals(glmfit), tolerance=0.0001)
# Residuals: Poisson
y <- rpois(nrow(X), 1)
glmfit <- glm(y~X, family='poisson')
fit <- ncvreg(X, y, family='poisson', lambda.min=0)
nl <- c(nrow(X), length(fit$lambda))
expect_equal(dim(fit$linear.predictors), nl)
expect_equal(dim(residuals(fit)), nl)
expect_equal(fit$linear.predictors[,100], glmfit$linear.predictors, tolerance=0.0001)
expect_equal(residuals(fit)[,100], residuals(glmfit), tolerance=0.0001)
# Cox
data(Lung, package='ncvreg')
X <- Lung$X
y <- Lung$y
cvfit <- cv.ncvsurv(X, y)
summary(cvfit)
plot(cvfit, type='rsq')
summary(coxph(y~X))
# Cox residuals are checked in ncvsurv.R
Any scripts or data that you put into this service are public.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.