Nothing
kdeplot <- function(data, kernel, xlim, ylim,
args = list(),
lty = 1,
lwd = 3,
col = trellis.par.get("plot.line")$col,
buffer = 0,
n = 50,
xlab = "x",
ylab = "density",
...) {
ndata <- length(data)
scalingConstant = integrate( function(x) {
do.call( kernel, c(list(x), args) ) },
-Inf, Inf)$value
if (missing(xlim)) {
xlim = range(data)
buf <- buffer * diff(xlim)
xlim <- xlim + c(-1, 1) * buf
}
if (missing(ylim)) {
xvals <- seq(xlim[1], xlim[2], length = n)
# yvals <- fun(xvals, unlist(args))
yvals = do.call(kernel,
c(list(x = seq(xlim[1], xlim[2], length = 100)), args))
ylim <- range(yvals)
buf <- buffer * diff(ylim)
ylim <- ylim + c(-1, 1) * buf
}
xyplot(ylim ~ xlim, xlab = xlab, ylab = ylab,
panel = function(x, y, ...){
panel.mathdensity(kde(data, kernel, ...),
args = args,
lwd = 3.5,
lty = lty,
col = col,
n = n,
...)
for (d in data) {
panel.mathdensity(
dmath = function(x){
y <- do.call(kernel, c(list(x-d), args))
y / (ndata * scalingConstant)
},
args = args,
lwd = 1.5,
lty = 1,
col = trellis.par.get("superpose.line")$col[2],
n = n,
...)
}
panel.rug(data, lwd = 2)
},
...)
}
kdeplot(x, K1, xlim = c(1, 11), ylim = c(0, 0.32), n = 500,
main = expression(K[1]))
kdeplot(x, K2, xlim = c(1, 11), ylim = c(0, 0.32), n = 500,
main = expression(K[2]))
kdeplot(x, K3, xlim = c(1, 11), ylim = c(0, 0.32), n = 500,
main = expression(K[3]))
kdeplot(x, K4, xlim = c(1, 11), ylim = c(0, 0.32), n = 500,
main = expression(K[4]))
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