1 |
x |
|
y |
|
pyhat |
|
plotit |
|
xlab |
|
ylab |
|
zlab |
|
xout |
|
outfun |
|
pr |
|
theta |
|
phi |
|
duplicate |
|
LP |
|
expand |
|
scale |
|
fr |
|
ticktype |
|
... |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 | ##---- Should be DIRECTLY executable !! ----
##-- ==> Define data, use random,
##-- or do help(data=index) for the standard data sets.
## The function is currently defined as
function (x, y, pyhat = FALSE, plotit = TRUE, xlab = "X", ylab = "Y",
zlab = "Z", xout = FALSE, outfun = outpro, pr = TRUE, theta = 50,
phi = 25, duplicate = "error", LP = TRUE, expand = 0.5, scale = TRUE,
fr = 2, ticktype = "simple", ...)
{
x = as.matrix(x)
p = ncol(x)
p1 = p + 1
xx <- elimna(cbind(x, y))
x <- xx[, 1:p]
y <- xx[, p1]
if (xout) {
m <- cbind(x, y)
flag <- outfun(x, plotit = FALSE, ...)$keep
m <- m[flag, ]
x <- m[, 1:p]
y <- m[, p1]
}
x = as.matrix(x)
library(MASS)
m = cov.mve(x)
flag <- (y == 1)
phat <- NA
m1 = matrix(NA, nrow = length(y), ncol = length(y))
for (i in 1:nrow(x)) m1[, i] <- mahalanobis(x, x[i, ], m$cov)
m2 <- exp(-1 * m1) * (sqrt(m1) <= fr)
m3 <- matrix(y, length(y), length(y)) * m2
phat = apply(m3, 2, sum)/apply(m2, 2, sum)
if (p == 1) {
if (plotit) {
plot(x, y, xlab = xlab, ylab = ylab)
flag2 <- order(x)
lines(x[flag2], phat[flag2])
}
}
if (p == 2) {
if (plotit) {
library(akima)
if (pr) {
if (!scale)
print("With dependence, suggest using scale=T")
}
fitr <- phat
iout <- c(1:length(fitr))
nm1 <- length(fitr) - 1
for (i in 1:nm1) {
ip1 <- i + 1
for (k in ip1:length(fitr)) if (sum(x[i, ] ==
x[k, ]) == 2)
iout[k] <- 0
}
fitr <- fitr[iout >= 1]
if (LP)
fitr = lplot(x[iout >= 1, ], fitr, pyhat = TRUE,
pr = FALSE, plotit = FALSE)$yhat
mkeep <- x[iout >= 1, ]
fit <- interp(mkeep[, 1], mkeep[, 2], fitr, duplicate = duplicate)
persp(fit, theta = theta, phi = phi, expand = expand,
scale = scale, xlab = xlab, ylab = ylab, zlab = zlab,
ticktype = ticktype)
}
}
if (!pyhat)
phat <- "Done"
phat
}
|
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.