swh:1:snp:9523f0d466702d960abd89c52a35d2466e8b9dc4
Tip revision: 6558a667945a2eb93983bb2ec0879af62e27f4d9 authored by J. O. Ramsay on 14 August 2017, 12:10:02 UTC
version 2.4.7
version 2.4.7
Tip revision: 6558a66
plot.pca.fd.Rd
\name{plot.pca.fd}
\alias{plot.pca.fd}
\title{
Plot Functional Principal Components
}
\description{
Display the types of variation across a sample of functions. Label
with the eigenvalues that indicate the relative importance of each
mode of variation.
}
\usage{
#plot.pca.fd(x, nx = 128, pointplot = TRUE, harm = 0,
# expand = 0, cycle = FALSE, ...)
#NOTE: The following is required by CRAN rules that
# function names like "as.numeric" must follow the documentation
# standards for S3 generics, even when they are not.
# Please ignore the following line:
\method{plot}{pca.fd}(x, nx = 128, pointplot = TRUE, harm = 0,
expand = 0, cycle = FALSE, ...)
}
\arguments{
\item{x}{
a functional data object.
}
\item{nx}{
Number of points to plot or vector (if length > 1) to use as
\code{evalarg} in evaluating and plotting the functional principal
components.
}
\item{pointplot}{
logical: If TRUE, the harmonics / principal components are plotted
as '+' and '-'. Otherwise lines are used.
}
\item{harm}{
Harmonics / principal components to plot. If 0, plot all.
If length(harm) > sum(par("mfrow")), the user advised, "Waiting to
confirm page change..." and / or 'Click or hit ENTER for next page'
for each page after the first.
}
\item{expand}{
nonnegative real: If expand == 0 then effect of +/- 2 standard
deviations of each pc are given otherwise the factor expand is
used.
}
\item{cycle}{
logical: If cycle=TRUE and there are 2 variables then a cycle plot
will be drawn If the number of variables is anything else, cycle
will be ignored.
}
\item{\dots}{
other arguments for 'plot'.
}
}
\details{
Produces one plot for each principal component / harmonic to be
plotted.
}
\value{
invisible(NULL)
}
\seealso{
\code{\link{cca.fd}},
\code{\link{pda.fd}}
\code{\link{plot.pca.fd}}
}
\examples{
# carry out a PCA of temperature
# penalize harmonic acceleration, use varimax rotation
daybasis65 <- create.fourier.basis(c(0, 365), nbasis=65, period=365)
harmaccelLfd <- vec2Lfd(c(0,(2*pi/365)^2,0), c(0, 365))
harmfdPar <- fdPar(daybasis65, harmaccelLfd, lambda=1e5)
daytempfd <- smooth.basis(day.5, CanadianWeather$dailyAv[,,"Temperature.C"],
daybasis65, fdnames=list("Day", "Station", "Deg C"))$fd
daytemppcaobj <- pca.fd(daytempfd, nharm=4, harmfdPar)
# plot harmonics, asking before each new page after the first:
plot.pca.fd(daytemppcaobj)
# plot 4 on 1 page
op <- par(mfrow=c(2,2))
plot.pca.fd(daytemppcaobj, cex.main=0.9)
par(op)
}
% docclass is function
\keyword{smooth}