plot.FDboost: Plot the fit or the coefficients of a boosted functional...

In FDboost: Boosting Functional Regression Models

Plot the fit or the coefficients of a boosted functional regression model

Description

Takes a fitted FDboost-object produced by FDboost() and plots the fitted effects or the coefficient-functions/surfaces.

Usage

## S3 method for class 'FDboost'
plot(
  x,
  raw = FALSE,
  rug = TRUE,
  which = NULL,
  includeOffset = TRUE,
  ask = TRUE,
  n1 = 40,
  n2 = 40,
  n3 = 20,
  n4 = 11,
  onlySelected = TRUE,
  pers = FALSE,
  commonRange = FALSE,
  ...
)

plotPredicted(
  x,
  subset = NULL,
  posLegend = "topleft",
  lwdObs = 1,
  lwdPred = 1,
  ...
)

plotResiduals(x, subset = NULL, posLegend = "topleft", ...)

Arguments

x	a fitted FDboost-object
raw	logical defaults to FALSE. If raw = FALSE for each effect the estimated function/surface is calculated. If raw = TRUE the coefficients of the model are returned.
rug	when TRUE (default) then the covariate to which the plot applies is displayed as a rug plot at the foot of each plot of a 1-d smooth, and the locations of the covariates are plotted as points on the contour plot representing a 2-d smooth.
which	a subset of base-learners to take into account for plotting.
includeOffset	logical, defaults to TRUE. Should the offset be included in the plot of the intercept (default) or should it be plotted separately.
ask	logical, defaults to TRUE, if several effects are plotted the user has to hit Return to see next plot.
n1	see below
n2	see below
n3	n1, n2, n3 give the number of grid-points for 1-/2-/3-dimensional smooth terms used in the marginal equidistant grids over the range of the covariates at which the estimated effects are evaluated.
n4	gives the number of points for the third dimension in a 3-dimensional smooth term
onlySelected,	logical, defaults to TRUE. Only plot effects that where selected in at least one boosting iteration.
pers	logical, defaults to FALSE, If TRUE, perspective plots (persp) for 2- and 3-dimensional effects are drawn. If FALSE, image/contour-plots (image, contour) are drawn for 2- and 3-dimensional effects.
commonRange	logical, defaults to FALSE, if TRUE the range over all effects is the same (does not affect perspecitve or image plots).
...	other arguments, passed to funplot (only used in plotPredicted)
subset	subset of the observed response curves and their predictions that is plotted. Per default all observations are plotted.
posLegend	location of the legend, if a legend is drawn automatically (only used in plotPredicted). The default is "topleft".
lwdObs	lwd of observed curves (only used in plotPredicted)
lwdPred	lwd of predicted curves (only used in plotPredicted)

Value

no return value (plot method)

See Also

FDboost for the model fit and coef.FDboost for the calculation of the coefficient functions.

FDboost documentation built on Aug. 12, 2023, 5:13 p.m.