Re: [R] precision of std. error in summary

inical Statistics > South San Francisco, CA > > "The business of the statistician is to catalyze the scientific learning > process." - George E. P. Box > > > > > -----Original Message- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL

[R] precision of std. error in summary

de more digits in the std error? Thanks -- ======== Angelo Secchi PGP Key ID:EA280337 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html

[R] New psi with rlm

Hi, How can I define a new psi function in the rlm comand? In particular I would like to implement the case for \rho(u)=0.5*(u^2) and \psi(u)=u in order to assume normally distributed errors. Any help? Thanks -- Angelo Secchi

[R] rob var/cov + LAD regression

regression function? Any help? Thanks -- ==== Angelo Secchi PGP Key ID:EA280337 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read t

Re: [R] Command line and R

On Wed, 09 Nov 2005 12:25:37 - (GMT) (Ted Harding) <[EMAIL PROTECTED]> wrote: > On 09-Nov-05 Roger Bivand wrote: > > On Wed, 9 Nov 2005, Angelo Secchi wrote: > >> Hi, > >> I wrote a small R script (delta.R) using commandArgs(). The script > >> work

[R] Command line and R

Any other workaround? Thanks -- ==== Angelo Secchi PGP Key ID:EA280337 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the post

[R] Newbie on functions

theta" not found I do not understand why, any help? Thanks -- ==== Angelo Secchi PGP Key ID:EA280337 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html

Re: [R] 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. > > > > > &

[R] Non linear modeling

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 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the postin

[R] ismev package

Hi, I'm exploring the ismev package and in particular the pp.fit function. Documentation says that this function performs Maximum-likelihood fitting for the point process model, including generalized linear modelling of each parameter. Actually I'm afraid not to understand what it means with "Poin

[R] Std Err on Concentration measures

nt? Thanks. -- ==== Angelo Secchi PGP Key ID:EA280337 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.o

Re: [R] Robust regression with groups

olic University of Leuven > > Address: Kapucijnenvoer 35, Leuven, Belgium > Tel: +32/16/396887 > Fax: +32/16/337015 > Web: http://www.med.kuleuven.ac.be/biostat/ > http://www.student.kuleuven.ac.be/~m0390867/dimitris.htm > > > - Original Message - >

[R] Robust regression with groups

Hi, I have data on a group of subjects in different years. I should assume that observations regarding different individuals are independent but observations for the same individual in different years are not and I would like to have an estimated standard error (and variance-covariance matrix) ta