Nothing
myPalette <- function (low = "white", high = c("green", "red"), mid = NULL, k = 50){
low <- col2rgb(low)/255
high <- col2rgb(high)/255
if (is.null(mid)) {
r <- seq(low[1], high[1], len = k)
g <- seq(low[2], high[2], len = k)
b <- seq(low[3], high[3], len = k)
}
if (!is.null(mid)) {
k2 <- round(k/2)
mid <- col2rgb(mid)/255
r <- c(seq(low[1], mid[1], len = k2), seq(mid[1], high[1], len = k2))
g <- c(seq(low[2], mid[2], len = k2), seq(mid[2], high[2], len = k2))
b <- c(seq(low[3], mid[3], len = k2), seq(mid[3], high[3], len = k2))
}
rgb(r, g, b)
}
as.colors <- function(x, col.na="#E6E6E6", palette="rainbow", ...){
v2m=FALSE
if (is.na(palette) || is.null(palette)){
stop("Palette must be specified")
}
if (is.vector(x)){
v2m=TRUE
x <- matrix(x, nrow=1)
}
xfactor <- factor(as.vector(as.matrix(x)))
col.sel <- do.call(palette,list(n=length(levels(xfactor)), ...))
colorlab<-apply(x,1,function(xx){
for (i in levels(factor(xx))){
ind<-which(levels(xfactor)==i)
xx[which(xx==i)] <- col.sel[ind]
}
return (xx)
})
colorlab[which(is.na(colorlab))] <- col.na
if (v2m){
return(as.vector(colorlab))
}
else if(is.matrix(x) && is.vector(colorlab)){
colorlab<-as.matrix(colorlab,ncol=ncol(x), nrow=nrow(x))
}
else{
return(t(colorlab))
}
}
intersectg <- function(...) {
args <- list(...)
emptyin <- unlist(lapply(args,is.null))
if (any(emptyin))
args <- args[which(!emptyin)]
nargs <- length(args)
if(nargs <= 1) {
if(nargs == 1 && is.list(args[[1]])) {
do.call("intersectg", args[[1]])
} else {
stop("cannot evaluate intersection fewer than 2 arguments")
}
} else if(nargs == 2) {
intersect(args[[1]], args[[2]])
} else {
intersect(args[[1]], intersectg(args[-1]))
}
}
setdiffg <- function(...) {
args <- list(...)
emptyin <- unlist(lapply(args,is.null))
if (any(emptyin))
args <- args[which(!emptyin)]
nargs <- length(args)
if(nargs <= 1) {
if(nargs == 1 && is.list(args[[1]])) {
do.call("setdiffg", args[[1]])
} else {
stop("cannot evaluate intersection fewer than 2 arguments")
}
} else if(nargs == 2) {
setdiff(args[[1]], args[[2]])
} else {
setdiff(setdiffg(args[-length(args)]), args[[length(args)]])
}
}
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