broom (version 0.3.4)

smooth.spline_tidiers: tidying methods for smooth.spline objects

Description

This combines the original data given to smooth.spline with the fit and residuals

Usage

## S3 method for class 'smooth.spline':
augment(x, data = x$data, ...)
## S3 method for class 'smooth.spline':
glance(x, ...)

Arguments

x

a smooth.spline object

data

defaults to data used to fit model

...

not used in this method

Value

• augment returns the original data with extra columns:
• .fitted
  Fitted values of model
• .resid
  Residuals
• glance returns one row with columns
• spar
  smoothing parameter
• lambda
  choice of lambda corresponding to spar
• df
  equivalent degrees of freedom
• crit
  minimized criterion
• pen.crit
  penalized criterion
• cv.crit
  cross-validation score

Details

No tidy method is provided for smooth.spline objects.

Examples

spl <- smooth.spline(mtcars$wt, mtcars$mpg, df = 4)
head(augment(spl, mtcars))
head(augment(spl))  # calls original columns x and y

library(ggplot2)
ggplot(augment(spl, mtcars), aes(wt, mpg)) +
    geom_point() + geom_line(aes(y = .fitted))