plot.cv.biglasso: Plots the cross-validation curve from a "cv.biglasso" object

In biglasso: Extending Lasso Model Fitting to Big Data

Plots the cross-validation curve from a "cv.biglasso" object

Description

Plot the cross-validation curve from a cv.biglasso() object, along with standard error bars.

Usage

## S3 method for class 'cv.biglasso'
plot(
  x,
  log.l = TRUE,
  type = c("cve", "rsq", "scale", "snr", "pred", "all"),
  selected = TRUE,
  vertical.line = TRUE,
  col = "red",
  ...
)

Arguments

x	A "cv.biglasso" object.
log.l	Should horizontal axis be on the log scale? Default is TRUE.
type	What to plot on the vertical axis. cve plots the cross-validation error (deviance); rsq plots an estimate of the fraction of the deviance explained by the model (R-squared); snr plots an estimate of the signal-to-noise ratio; scale plots, for family="gaussian", an estimate of the scale parameter (standard deviation); pred plots, for family="binomial", the estimated prediction error; all produces all of the above.
selected	If TRUE (the default), places an axis on top of the plot denoting the number of variables in the model (i.e., that have a nonzero regression coefficient) at that value of lambda.
vertical.line	If TRUE (the default), draws a vertical line at the value where cross-validaton error is minimized.
col	Controls the color of the dots (CV estimates).
...	Other graphical parameters to plot

Details

Error bars representing approximate 68\ estimates at value of lambda. For rsq and snr, these confidence intervals are quite crude, especially near.

Value

Invisibly returns NULL. Called for its side effect of producing a plot.

See Also

biglasso(), cv.biglasso()

biglasso documentation built on Aug. 25, 2026, 5:08 p.m.