# plot.FDboost

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

Takes a fitted `FDboost`

-object produced by `FDboost()`

and
plots the fitted effects or the coefficient-functions/surfaces.

##### Usage

```
# S3 method for 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)

##### See Also

`FDboost`

for the model fit and
`coef.FDboost`

for the calculation of the coefficient functions.

*Documentation reproduced from package FDboost, version 0.3-2, License: GPL-2*