Displaying 2 results from an estimated 2 matches for "mygamma".
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ygamma
2009 Jun 01
1
survreg.distributions() error
...e.
My goal is to use survreg to fit a gamma distribution to interval
censored data.
Here is a simple example of what I'm trying to do. This code
recreates the error on my machine.
require(survival)
## create the gamma distribution for survreg()
## paramter vector is parms = c(shape, scale)
mygamma <- list(name='gamma',
init = function(x, weights, ...) {
c(median(x), mad(x)) },
density = function(x, parms) {
shape <- parms[1] ## "k" in wikipedia definition
scale <- parms[2] ## "theta" in wikipedia
cbind(pgamma(x, shape=shape, scale=scale)...
1999 Mar 05
2
[Andreas Krause <Andreas.Krause@genedata.com>] Re: splus shell escapes
Anyone know what the problem is with IRIX 6.5 ? (esp if there is a
solution?). Looks like the built-in math stuff is masking definitions
from R source.
(passing this along for a friend).
best,
-tony
From: Andreas Krause <Andreas.Krause@genedata.com>
To: "A.J. Rossini" <rossini@biostat.washington.edu>
Subject: Re: splus shell escapes
# download
./configure
R is now