Displaying 20 results from an estimated 3000 matches similar to: "ismev package"
2005 Feb 05
2
Std Err on Concentration measures
Hi,
I'm using the ineq package to calculate some concentration measures (Gini, Herfindal, ...) and I was wondering if there's around also a function to calculate standard error on these measures. If not, is anybody aware of where I can find a reference on this point?
Thanks.
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Angelo Secchi PGP Key ID:EA280337
2006 Feb 08
3
rob var/cov + LAD regression
Hi,
after looking around I was not able to get info about these two questions:
1. Is there a function to have a "jackknifed corrected var/cov estimate" (as described in MacKinnon and White 1985) in a standard OLS regression?
2. Does R possess a LAD (Least Absolute Deviation) regression function?
Any help?
Thanks
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Angelo
2005 Mar 18
3
Non linear modeling
AFAIK most model fitting techniques will only deal with additive errors, not
multiplicative ones. You might want to try fitting:
log(y-x) = a*x + e
which is linear.
Andy
> From: Angelo Secchi
>
> Hi,
> is there a way in R to fit a non linear model like
>
> y=x+exp(a*x)*eps
>
> where a is the parameter and eps is the error term?
> Thanks
> Angelo
>
>
2006 Feb 10
1
precision of std. error in summary
Hi,
I'm doing robust regression with the following command
rlm(dip~ind1+ind2-1,method="M",psi=psi,maxit=1000,acc=1e-15)
now when I ask for a summary
summary(rlm(dip~ind1+ind2-1,method="M",psi=psi,maxit=1000,acc=1e-15))
I get
Coefficients:
Value Std. Error t value
ind1 -0.0377 0.0000 -24203.1415
ind2 1.0370 0.0000 668735.7195
taht is
2005 Nov 07
1
Newbie on functions
Hi,
I'm trying to write a simple function like
case1 <- function (m, cov, Q, R) {
theta <- (acos(R/sqrt(Q^3)))
beta <- (-2)*sqrt(Q)*cos(theta/3)+m[1]/3
rho1 <- (-2)*sqrt(Q)*cos((theta+2*pi)/3)+m[1]/3
rho2 <- (-2)*sqrt(Q)*cos((theta-2*pi)/3)+m[1]/3
stderrb <- deltamethod( ~(-2)*sqrt(Q)*cos(theta/3)+x1/3,m,cov)
stderrr1 <- deltamethod(
2011 Oct 21
2
How to use gev.fit (package ismev) under box constraints?
[This email is either empty or too large to be displayed at this time]
2010 Jan 31
0
Package ismev, gpd.fit, and interpretation for statistics of extreme values
Dear All,
I have a question about package "ismev", its function "gpd.fit", and
interpretation of the results.
I used the package ismev to do an extreme value analysis on a fire
dataset. Two variables are used in the analysis. The focal variable is
acreage burned per fire, ranging from 1 to 5000 acres per fire. In
total, there are 69,980 observations. The date covers
2009 Nov 17
0
question on gps.prof in ismev
Dear all,
I'm trying to produce a log-likelihood profile for a GPD estimate with
the ismev package. When following the examples, everything is working
fine, i.e. I get a nice parabolic log-likelihood curve. When using my
own data (intensity of hurricanes at landfall), the log-likelihood curve
looks like a step function. Am I doing something wrong here? Is my data
not suited for the GPD fit?
2005 Apr 24
8
losing NFS connection
Hello there!
Perhaps this is a little off-topic, but I notice this only on the Centos
box.
I'm running Centos 4 on an AMD64 which has the following entries in the
fstab to connect to NFS shares on a Fedora3 box:
192.168.1.12:/home/angelo/ /home/angelo/NFS_share1 nfs
rw,addr=192.168.1.12 0 0
192.168.1.12:/home/angelo/data /home/angelo/NFS_share2 nfs
rw,addr=192.168.1.12 0 0
2007 Jan 14
2
ks.test not working?
Hi,
I am trying the following:
library(ismev)
library(evd)
fit <- gev.fit(x,show=FALSE)
ks.test(x,pgev,fit$mle[1],fit$mle[2],fit$mle[3])
but I am getting:
Warning message:
cannot compute correct p-values with ties in: ks.test(x, pgev,
fit$mle[1], fit$mle[2], fit$mle[3])
where x is:
[1] 239 38 1 43 22 1 5 9 15 6 1 9 156
25 3 100 6
[18] 5 100
2012 Feb 01
3
Crash in R using embedded.
Hi,
I'm new to R, and am trying to embed R into another application.
I'm calling gev.fit() from the ismev package, and it is crashing somewhere
inside it.
gdb is not catching it, and valgrind is not showing any memory corruption
issues.
I suspect it's memory corruption, because it doesn't crash in exactly the
same spot each time.
I'm running R 2.12.2 on a 64 bit linux (Ubuntu
2006 Jan 17
4
Delphi Application.
Friends,
Sorry my english, i'am speaking from brazil. I have a problem with an
delphi application running on wine 0.93. The application open exactly,
but the buttons not it appears correctly. I send the link of screenshot:
http://200.195.11.195/~prolinx/screen01.jpg
any help is coming well.
Thanks!!!
Angelo Braga
2006 Jan 17
1
Fwd: Re: Delphi Application
---------- Mensagem reenviada ----------
Subject: Re: [Wine] Delphi Application
Date: Dom 01 Jan 2006 14:32
From: Bruno <cbruno@ferreiracosta.com.br>
To: wine-users@winehq.org
Cc: truls@asheim.ne
Olah Angelo Braga, tambem estou no Brasil, e meu ingles eh pessimo,
Acho que sei qual o problema com seus icones!
Jah tive um problema parecido, e resolvi instalando fontes TrueType
Originais,
2010 Jan 18
1
Getting Closer (was: Fencing options)
One more follow on,
The combination of kernel.panic=60 and kernel.printk=7 4 1 7 seems to
have netted the culrptit:
E01-netconsole.log:Jan 18 09:45:10 E01 (10,0):o2hb_write_timeout:137
ERROR: Heartbeat write timeout to device dm-12 after 60000
milliseconds
E01-netconsole.log:Jan 18 09:45:10 E01
(10,0):o2hb_stop_all_regions:1517 ERROR: stopping heartbeat on all
active regions.
2012 Jun 15
1
R under JVM
Dear all,
first of all I apologize for not having changed the object.
I just re-used an old email I sent some time ago.
The let us go into the question.
Our architecture is the following:
A (set of) java programs running under a jvm that passes data and instructions to an R instance via RNI
and at the end of the process extracts calculated data from R.
The question is: can I
2000 Mar 21
3
loading data in packages
Hi,
I'm new to R and have a question which seems like it should be easy.
I loaded the R port of my boot library and installed it. All of the
functions and help files are available but I can't seem to access the
data. The data directory was created and contains files with the
extension .rda. I tried to use the data() function but I get
> data(city)
Error: restore file corrupted -- no
2003 Oct 31
2
Summing elements in a list
Hi,
Suppose that I have a list where each component is a list of two
matrices. I also have a vector of weights. How can I collapse my
list of lists into a single list of two matrices where each matrix
in the result is the weighted sum of the corresponding matrices.
I could use a loop but this is a nested calculation so I was hoping
there is a more efficient way to do this. To help clarify,
2008 Jul 10
3
Sorting a matrix
Hi,
I want to sort a matrix by a specific variable without changing the
row binding between variables.
Ex.
Name Sex Age
Fred M 24
John M 18
Mary F 21
ordered by Age
Name Sex Age
John M 18
Mary F 21
Fred M 24
Thanks
Angelo
2008 Jul 23
5
Histogram
Hi,
how can I treat data organised in classes and frequencies?
Ex.
class frequency
20-23 9
23-25 7
26-28 5
29-31 5
32-34 3
Thanks
Angelo Scozzarella
2008 Jul 22
4
Function Error
Hi,
Why this function doesn't work?
function (x)
{
if (is.factor(x)) {
if (!is.ordered(x)) {
warning("La mediana non si puo' calcolare!!!")
return(NA)
}
me <- median(unclass(x))
if (me - floor(me) != 0) {
warning("Mediana indeterminata")
return(NA)
}
else