Displaying 20 results from an estimated 700 matches similar to: "Issues with 'Miwa' algorithm in mvtnorm package"
2017 Oct 02
0
Issues with 'Miwa' algorithm in mvtnorm package
Rather specialized.
As this appears to be primarily a statistical, not an R programming
question, you may do better posting on a statistical site like
http://stats.stackexchange.com/ if you don't get a satisfactory reply here
. Alternativey, if you think this is a package bug, perhaps contact the
package maintainer directly, as (s)he may not monitor this list.
-- Bert
Bert Gunter
2017 Oct 02
0
Issues with 'Miwa' algorithm in mvtnorm package
Good point. Now this returns 0.04062184. Hmmm.....
On Mon, Oct 2, 2017 at 6:30 PM, Hollie Johnson (PGR) <
h.a.johnson at newcastle.ac.uk> wrote:
> Hi Eric,
>
>
> Thanks for having a look into this. I think you have a small typo...
>
> B <- matrix(x, nrow=3, byrow = TRUE) should read B <- matrix(y, nrow=3,
> byrow = TRUE)
>
>
> Regards, Hollie
>
2017 Oct 02
0
Issues with 'Miwa' algorithm in mvtnorm package
Hi Eric,
Thanks for having a look into this. I think you have a small typo...
B <- matrix(x, nrow=3, byrow = TRUE) should read B <- matrix(y, nrow=3, byrow = TRUE)
Regards, Hollie
________________________________
From: R-help <r-help-bounces at r-project.org> on behalf of Eric Berger <ericjberger at gmail.com>
Sent: 02 October 2017 16:16:13
To: Bert Gunter
Cc: r-help at
2009 Nov 20
2
Problem with Numerical derivatives (numDeriv) and mvtnorm
I'm trying to obtain numerical derivative of a probability computed
with mvtnorm with respect to its parameters using grad() and
jacobian() from NumDeriv.
To simplify the matter, here is an example:
PP1 <- function(p){
thetac <- p
thetae <- 0.323340333
thetab <- -0.280970036
thetao <- 0.770768082
ssigma <- diag(4)
ssigma[1,2] <- 0.229502120
2006 Dec 27
3
Help with nut 2.0.4, MGE Ellipse 1000 and FreeBSD
Hello.
So as my english is not so good, i'll try to write my story in bash commands
:o)
miwa@zork3$ uname -mrs
FreeBSD 5.5-STABLE i386
miwa@zork3$ su
root@zork3# cd /usr/ports/sysutils/nat
root@zork3# make && make install
root@zork3# cd ../nut-usb
root@zork3# make && make install
root@zork3# cd /usr/local/etc/nut
root@zork3# cat ups.conf
user=root
[MGE-Ellipse]
2000 Nov 14
1
mvtnorm
Announcement: mvtnorm
Multivariate Normal and T Distribution
mvtnorm implements two R functions for the computation of the multivariate t
and normal distribution:
pmvt: Computes the the distribution function of the multivariate t
distribution for arbitary limits, degrees of freedom and
correlation matrices based on algorithms by Genz and Bretz.
pmvnorm: Computes the distribution
2000 Nov 14
1
mvtnorm
Announcement: mvtnorm
Multivariate Normal and T Distribution
mvtnorm implements two R functions for the computation of the multivariate t
and normal distribution:
pmvt: Computes the the distribution function of the multivariate t
distribution for arbitary limits, degrees of freedom and
correlation matrices based on algorithms by Genz and Bretz.
pmvnorm: Computes the distribution
2004 Sep 04
5
R question
Hi,
Would you help me solve the following question? Thanks.
Question: If I try to set the probability=0.05 and find the approximate x. (The answer should be somewhere between 2.1782 and 2.1783.)
I write about this R program as follows but I don¡¦t know how to get the value of x which is between 2.1782 and 2.1783.
library(mvtnorm)
value<-array(1000)
a<-array(1000)
2002 Jul 09
1
RE: mvtnorm package installation failure
Hi,
Thank you for the tip.
I tried to re-intall R from Debian "stable", in which R's version is 1.4.0. And the installation
of "mvtnorm" works.
I then re-installed R yet again from Debian "unstable" (woody), in which R's version is 1.5.1.
The installation of "mvtnorm" fails again with the same error message. Another package that
failed with the
2007 May 09
2
pvmnorm, error message
Hello there!
My operating system is Windows XP, my version of R is the latest (R-2.5.0). Recently I have downloaded the package "mvtnorm" and a problem with the command "pmvnorm" occured. Trying to enter the lines ...
A <- diag(3)
A[1,2] <-0.5
A[1,3] <- 0.25
A[2,3] <- 0.5
pvmnorm(lower=c(-Inf,-Inf,-Inf), upper=c(2,2,2),mean = c(0,0,0), corr=A)
I got the following
2009 Apr 19
1
help with this code
Hi, can anyone help me with the following code? Thanks!
library(mvtnorm)
f2 <- function(n, rho) {
var <- matrix(c(1,rho,rho,1), nrow=2, ncol=2, byrow=T)
beta <- seq(0, 1, length.out=n+1)
alpha <- sort (sapply(1-beta, qnorm))
x <- array(0, dim=c(n, n))
for (s in 1:n) {
for (t in 1:n){
if (s>=t)
x[s,t] <- pmvnorm(lower=c(alpha[s],
2006 Sep 30
1
error from pmvnorm
Hi all,
Can anyone tell me what the following error message means?
" Error in mvt(lower = lower, upper = upper, df = 0, corr = corr, delta = mean,
: NA/NaN/Inf in foreign function call (arg 6)"
It was generated when I used the 'pmvnorm' function in the 'mvtnorm' package.
Thanks a lot.
Yonghai Li
2005 May 14
1
pmvnorm
Hi there,
pmvnorm(lo=c(-Inf,-Inf), up=c(Inf,Inf), mean=c(0,0) )
should give me "1", right? But it doens't - it giver me "0".
Would someone help me, please?
[[alternative HTML version deleted]]
2007 Jul 07
2
No convergence using ADAPT
I am trying calculate a probability using numerical integration. The first
program I ran spit out an answer in a very short time. The program is below:
## START PROGRAM
trial <- function(input)
{
pmvnorm(lower = c(0,0), upper = c(2, 2), mean = input, sigma = matrix(c(.1, 0,
0, .1), nrow = 2, ncol = 2, byrow = FALSE))
}
require(mvtnorm)
require(adapt)
bottomB <- -5*sqrt(.1)
topB <-
2012 Jul 27
3
bivariate normal
Dear list members
I need a function that calculates the bivariate normal distribution for each observation. It is part of a likelihood function and I have 1000's of cases. As I understand it I cannot use packages like "mvtnorm" because it requres a covariance matrix of the same dimension as the number of observations. Basically what I need is a function that takes as arguments a
2008 Feb 19
1
recursive function help
I'm trying to implement a recursive function using integrate, and I
suspect I need a Vectorize somewhere,
but I can't suss it out. Any help would be appreciated. I've tried
traceback() and various debugging ideas to no avail (most likely due to
my inexperience with these tools.)
Here's what I have.
Nk <- function(m, C) {
if (length(m) > 1) {
rho <- C[1, -1]
2008 Oct 01
2
Bivariate normal
Package mvtnorm provides dmvnorm, pmvnorm that can be used to compute
Pr(X=x,Y=y) and Pr(X<x,Y<y) for a bivariate normal.
Are there functions that would compute Pr(X<x,Y=y)?
I'm currently using "integrate" with dmvnorm but it is too slow.
2003 Nov 04
3
interfacing C into R and R packages
Hi,
I would like to interface a C code into R. Is it possible to use in the C code, functions from a R package (for instance, to use pmvnorm within loops in the C code and to call the result in a R function)?
Nathalie
2002 Mar 02
1
pmvnorm?
Dear all,
The MASS library provides a mvrnorm function to generate random numbers
from a multivariate normal distribution, similar to S-Plus's rmvnorm, but
is there an R-equivalent to pmvnorm, which generates probabilities from a
multivariate normal?
With thanks,
John Field
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r-help mailing list -- Read
2012 Apr 19
3
Bivariate normal integral
hello,
I'm trying to improve the speed of my calculation but didn't get to a
satisfying result.
It's about the numerical Integration of a bivariate normal distribution.
The code I'm currently using
x <-
qnorm(seq(.Machine$double.xmin,c(1-2*.Machine$double.eps),by=0.01),
mean=0,sd=1)
rho <- 0.5
integral <- function(rho,x1){