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# $Id: bandplot.R 1906 2014-12-02 01:46:35Z warnes $
bandplot <- function(x, ...)
UseMethod("bandplot")
bandplot.default <- function(x, y,
...,
add=FALSE,
sd=c(-2:2),
sd.col=c("magenta","blue","red",
"blue","magenta"),
sd.lwd=c(2,2,3,2,2),
sd.lty=c(2,1,1,1,2),
method="frac", width=1/5,
n=50
)
{
if(length(sd.col)<length(sd)) sd <-rep(sd.col,length=length(sd))
if(length(sd.lwd)<length(sd)) sd <-rep(sd.lwd,length=length(sd))
if(length(sd.lty)<length(sd)) sd <-rep(sd.lty,length=length(sd))
if(!add)
{
m <- match.call(expand.dots = TRUE)
m$width <- m$add <- m$sd <- m$sd.col <- NULL
m$method <- m$n <- m$sd.lty <- m$sd.lwd <- NULL
m[[1]] <- as.name("plot")
mf <- eval(m, parent.frame())
}
x <- as.numeric(x)
y <- as.numeric(y)
CL <- function(x,sd)
if(length(x)<2)
return( NA )
else
mean(x)+sd*sqrt(var(x))
ord <- order(x)
myx <- x[ord]
myy <- y[ord]
sdVec <- runsd(myy, k=floor(length(x)*width))
meanVec <- runmean(myy, k=floor(length(x)*width) )
stdevs <- list()
for( i in 1:length(sd) )
{
lines(myx,
meanVec + sdVec * sd[i],
col=sd.col[i],
lwd=sd.lwd[i],
lty=sd.lty[i]
)
}
}
bandplot.formula <- function(x,
data,
subset,
na.action,
...,
xlab=NULL,
ylab=NULL,
add=FALSE,
sd=c(-2:2),
sd.col=c("magenta","blue","red",
"blue","magenta"),
sd.lwd=c(2,2,3,2,2),
sd.lty=c(2,1,1,1,2),
method="frac", width=1/5,
n=50
)
{
if (missing(x) || (length(x) != 3))
stop("x missing or incorrect")
if (missing(na.action))
na.action <- getOption("na.action")
## construct call to model.frame to generate model matrix
mf <- match.call(expand.dots = FALSE)
m <- match(c("x", "data", "subset", "na.action"), names(mf), 0L)
mf <- mf[c(1L, m)]
mf$drop.unused.levels <- TRUE
mf[[1L]] <- quote(stats::model.frame)
## rename 'x' to 'formula'
names(mf)[2] <- "formula"
mf <- eval(mf, parent.frame())
## now extract x and y
response <- attr(attr(mf, "terms"), "response")
x <- mf[[-response]]
y <- mf[[response]]
## get x and y axis labels
sx <- substitute(x)
if (is.null(xlab)) {
if (mode(x) != "name")
xlab <- deparse(sx[[3L]])
else
xlab <- "x"
}
if (is.null(ylab)) {
if (mode(x) != "name")
ylab <- deparse(sx[[2L]])
else
ylab <- "y"
}
## now call the default method to actually do the work
bandplot.default(x,
y,
...,
xlab=xlab,
ylab=ylab,
add=add,
sd=sd,
sd.col=sd.col,
sd.lwd=sd.lwd,
sd.lty=sd.lty,
method=method,
width=width,
n=n
)
}
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