Plot coefficients from a ncvreg object
Produces a plot of the coefficient paths for a fitted
ncvreg object.
## S3 method for class 'ncvreg' plot(x, alpha=1, log.l=FALSE, shade=TRUE, col, ...)
x |
Fitted |
alpha |
Controls alpha-blending, helpful when the number of covariates is large. Default is alpha=1. |
log.l |
Should horizontal axis be on the log scale? Default is FALSE. |
shade |
Should nonconvex region be shaded? Default is TRUE. |
col |
Vector of colors for coefficient lines. By default, evenly spaced colors are selected automatically. |
... |
Other graphical parameters to |
Patrick Breheny
Breheny P and Huang J. (2011) Coordinate descentalgorithms for nonconvex penalized regression, with applications to biological feature selection. Annals of Applied Statistics, 5: 232-253. doi: 10.1214/10-AOAS388
data(Prostate) fit <- ncvreg(Prostate$X, Prostate$y) plot(fit) plot(fit, col="black") plot(fit, log=TRUE)
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