On Jan 26, 2011, at 5:38 AM, pdb wrote:
There seems to be 2 functions call ecdf...
http://lib.stat.cmu.edu/S/Harrell/help/Hmisc/html/ecdf.html
Apparently that used to be its name and that some time in the
intervening 10 years the name was changed to Ecdf. The Statlib
repository has rather ancient version of the Hmisc documentation.
Notice that it gives Harrell's UVa address. You should not use that
repository for documentation. Use the RSiteSearch:
http://search.r-project.org/cgi-bin/namazu.cgi?query=ecdf&max=100&result=normal&sort=score&idxname=functions
--
David.
http://127.0.0.1:11885/library/stats/html/ecdf.html
How do I get the one ecdf {Hmisc} to run instead of the ecdf {stats}
A pointer in the right direction would be greatly appreciated.
Tried to instal Hmisc but got this message, so I assume I have it
utils:::menuInstallPkgs()
Warning: package 'Hmisc' is in use and will not be installed
ran the demo from Hmisc with no luck...
set.seed(1)
ch <- rnorm(1000, 200, 40)
ecdf(ch, xlab="Serum Cholesterol")
Error in ecdf(ch, xlab = "Serum Cholesterol") :
unused argument(s) (xlab = "Serum Cholesterol")
ran the sample code from stats and it worked...
x <- rnorm(12)
Fn <- ecdf(x)
Fn # a *function*
Empirical CDF
Call: ecdf(x)
x[1:12] = -1.9123, -1.6626, -1.2468, ..., 1.1119, 1.135
Fn(x) # returns the percentiles for x
[1] 1.00000000 0.91666667 0.33333333 0.66666667 0.58333333 0.16666667
0.75000000 0.08333333 0.25000000 0.83333333 0.41666667 0.50000000
tt <- seq(-2,2, by = 0.1)
12 * Fn(tt) # Fn is a 'simple' function {with values k/12}
[1] 0 1 1 1 2 2 2 2 3 3 3 3 4 4 4 5 5 5 6 6 6
7 7 8
8 8 8 8 8 9 10 10 12 12 12 12 12 12 12 12 12
--
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