Hola, es la primera vez que mando un correo a cualquiera de las listas de
correo de R y no se si esta consulta se ajusta al próposito de la r-help
list o deberÃa haberlo mandado a otra de las listas que hay.
Mi problema es el siguiente: Estoy desarrollando un programa en java con
llamadas a R y
Hello, this is the first time I send a mail to r-help mailing list.
Mi problema es el siguiente: I'm developing a program in java with calls in
R and I can`t use jri 0.4-1 with R 2.7 or 2.6 .but it runs with 2.4.
The problem that I get when using the latest version of R is as follows:
Cannot
Hello, this is the first time I send a mail to r-help mailing list.
I'm developing a program in java with calls in R and I can`t use jri 0.4-1
with R 2.7 or 2.6 .but it runs with 2.4.
The problem that I get when using the latest version of R is as follows:
Cannot find JRI native library!
Please
Dear R-users
I would like to fit weibull parameters using Method of moments in order to
provide the inital values of the parameter to de function 'fitdistr' . I
don`t have much experience with maths and I don't know how to do it.
Can anyone please put me in the rigth direction?
Borja
Dear R-users
I would like to fit the GPD distribution using the gpd function from
evir package. I need to pick an appropiate threshold. I know there are
some useful plots to assist me in this choice like meplot or mrlplot. Do you
know if there is any technique to compute or calculate an exact
Dear R-users
I have some datasets, all left-censoring, and I would like to fit
distributions to (weibull,exponential, etc..). I read one solution using the
function survreg in the survival package. i.e
survreg(Surv(...)~1, dist=weibull) but it returns only the scale
parameter.
Does anyone know
Dear R-users,
Using Maximum-likelihood Fitting (fitdistr function) I've got the next
error:
fitdistr(datos,weibull,lower=0)
Error in optim(x = c(1.4625e-06, 0.257854, 0.0001217545, 0.11421005,
0.028721576, :
L-BFGS-B *needs finite values of 'fn' *
where datos is a vector of length=1000
Dear R-users,
I'm using R (2.7.1) under windows and I've got a function written in R that
calls a Fortran 77 subroutine using both interface function (.C and
.Fortran). The Fortran 77 source was compiled to a shared library using g77
(3.4.5).
When I call the R wrapper function, it will use the
Dear R-users
I've got the next problem:
I've got this *function*:
fitcond=function(x,densfun,pcorte,start,...){
myfn - function(parm,x,pcorte,...) -sum(log(dens(parm,x,pcorte,...)))
Call - match.call(expand.dots = TRUE)
if (missing(start))
start - NULL
dots -
Hello R-users.
I want to know if there is in R the distribution and density function of the
Coxian. If there isn't, It will help if someone has written this functions.
Thanks
Borja
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R-help@r-project.org
Dear R-user
I need a function to approximate a complex integration. My function is:
aprox2=function(s,x,rate){
dexp(x,rate)*exp(-s*x)
}
where argument s is a complex number. I can't use the integrate function
because it's only used with numeric arguments
Does anyone know some function to
Dear R-Users
I have a list with two vectors of doubles tha have different lengths. I want
to export it to a file and I also want to print it in two columns.
I try with write.table but it need vectors of the same length.
Does anyone know how to do it?
Thanks
Borja
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Dear R-users,
I am trying to fit pareto distribution to some data but i've one problem.
Using optim to calculate the maximum of the likelihood function of the
pareto I use as start parameters the moments method(using the distribution
function in the package actuar):
media=mean(x)
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