fda.usc (version 1.1.0)

plot.fdata: Plot functional data: fdata.

Description

Plot object of class fdata.

Usage

## S3 method for class 'fdata':
plot(x, type, main, xlab, ylab,
mfrow = c(1, 1), time = 1,...)
## S3 method for class 'fdata':
lines(x,\dots)
## S3 method for class 'fdata':
title(x,main=NULL,xlab=NULL,ylab=NULL,rownames=NULL)

Arguments

x

fdata class object with:

• "data": Forfdataclass object as curve (1d),"data"is amatrix(by default),data.frameorarrayof set cases with dimension (n

type

1-character string giving the type of plot desired. The following values are possible for fdata class object: "l" for lines (by default),"p" for points, , "o" for overplotted points and lines, "b", "c" for (empty if "c") points joined by line

main

an overall title for the plot: see title.

xlab

xlab title for x axis, as in plot.

ylab

ylab title for y axis, as in plot.

mfrow

A vector of the form c(nr, nc). Subsequent figures will be drawn in an nr-by-nc array on the device by rows (mfrow).

time

The time interval to suspend plot execution for, in seconds, see Sys.sleep.

rownames

Row names.

...

Further arguments passed to matplot function (for fdata class) or image, contour, persp

See Also

See Also as fdata

Examples

# example for fdata class of 1 dimension (curve)
a1<-seq(0,1,by=.01)
a2=rnorm(length(a1),sd=0.2)
f1<-(sin(2*pi*a1))+rnorm(length(a1),sd=0.2)
nc<-10
np<-length(f1)
tt=seq(0,1,len=101)
mdata<-matrix(NA,ncol=np,nrow=nc)
for (i in 1:nc) mdata[i,]<- (sin(2*pi*a1))+rnorm(length(a1),sd=0.2)
fdataobj<-fdata(mdata,tt)
res=plot.fdata(fdataobj,type="l",col=gray(1:nrow(mdata)/nrow(mdata)))
lines(func.mean(fdataobj),col=3,lwd=2) #original curve

# example for fdata2d class of 2 dimension (surface)
t1 <- seq(0, 1, length= 51)
t2 <- seq(0, 1, length= 31)
z<-array(NA,dim=c(4,51,31))
for (i in 1:4) z[i,,] <- outer(t1, t2, function(a, b) (i*a)*(b)^i)
z.fdata<-fdata(z,list(t1,t2))
plot(z.fdata,time=2)
plot(z.fdata,mfrow=c(2,2),type="persp",theta=30)