Maybe one option should be:
ecdf2 <- function (x)
{
x <- sort(x, decreasing = TRUE) # Changed Line
n <- length(x)
if (n < 1)
stop("'x' must have 1 or more non-missing values")
vals <- unique(x)
rval <- approxfun(vals, cumsum(tabulate(match(x, vals)))/n,
method = "constant", yleft = 0, yright = 1, f = 0, ties = "ordered")
class(rval) <- c("ecdf", "stepfun", class(rval))
attr(rval, "call") <- sys.call()
rval
}
See the source code of ecdf
On 19/02/2008, Hyunchul Kim <[EMAIL PROTECTED]> wrote:
> Hi, all
>
> ecdf function (Empirical Cumulative Distribution Function) in "stats"
> package counts from smaller values to larger values.
> However, I want to draw it by counting from larger value to smaller values
> and I couldn't find options for this purpose.
>
> How can I draw ecdf or ecdf like graph by counting from larger values to
> smaller values.
>
> Thank you in advance.
>
> Hyunchul Kim
>
> [[alternative HTML version deleted]]
>
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>
--
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O
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