search for: zabalza

...-0.2445 0.0195 B -0.2910 -0.0036 D -0.03213 -0.016 E -0.18887 -0.0944 A:B 0.5672 0.1418 Can someone explain what happens with these fitting procedure. Thanks Isabelle Zabalza-Mezghani -- Isabelle Zabalza-Mezghani Tel : 01 47 52 61 99 Institut Fran?ais du P?trole E-mail : isabelle.zabalza-mezghani at ifp.fr 1-4 Av. Bois Preau - Bat Lauriers 92852 Rueil Malmaison Cedex, France -------------- next part -------------- An HTML attachment was scrubbed......

...=-1),method="L-BFGS-B")$par [1] 200.00000 60.00007 500.00000 300.00000 700.00000 Here the result I get is wrong, and in fact it is more or less the initial guess I 've set. Can someone explain me what is going wrong with the method "L-BFGS-B" Thanks in advance Isabelle Zabalza-Mezghani -- Isabelle Zabalza-Mezghani Tel : 01 47 52 61 99 Institut Fran?ais du P?trole E-mail : isabelle.zabalza-mezghani at ifp.fr 1-4 Av. Bois Preau - Bat Lauriers 92852 Rueil Malmaison Cedex, France -------------- next part -------------- An HTML attachment was scrubbed... U...

...s,varnames,extras,extranames, : invalid variable type. The same program without specifying weights runs. I don't understand this behavior since when I execute the glm command with weights out of the program, it runs. I run R1.3.0 under Windows. If someone can help me ... Isabelle Zabalza-Mezghani -- Isabelle Zabalza-Mezghani Tel : 01 47 52 61 99 Institut Fran?ais du P?trole E-mail : isabelle.zabalza-mezghani at ifp.fr 1-4 Av. Bois Preau - Bat Lauriers 92852 Rueil Malmaison Cedex, France -------------- next part -------------- An HTML attachment was scrubbed.....

...l the R111 version for few days on my PC (on Windows NT), and every time the same problem : I start the rwin.exe application and a couple of seconds later, the install failed, and my PC is down. I must then swich it down and restart a new session. If someone has some help ... Thanks -- Isabelle Zabalza-Mezghani Tel : 01 47 52 61 99 Institut Fran?ais du P?trole E-mail : isabelle.zabalza-mezghani at ifp.fr 1-4 Av. Bois Preau - Bat Lauriers 92852 Rueil Malmaison Cedex, France -------------- next part -------------- An HTML attachment was scrubbed... URL: https://stat.ethz.ch/piperma...

...e the end of my script due to memory lack. Of course, I've tried to remove all "temporary object" during the script execution and to perform a garbage collector ... But it seems to have no effect ... Any idea to solve this problem without an exit from R ? Regards Isabelle Isabelle Zabalza-Mezghani IFP - Reservoir Engineering Department Rueil Malmaison - France

...Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272860 (secr) Oxford OX1 3TG, UK Fax: +44 1865 272595 ---------- Forwarded message ---------- Date: Tue, 21 Aug 2001 15:47:34 +0100 (BST) From: Prof Brian Ripley <ripley@stats.ox.ac.uk> To: Isabelle ZABALZA <isabelle.zabalza-mezghani@ifp.fr> Subject: Re: [R] Problem using GLM in a loop It's a scope problem: use data$weights <- 1/sig and it will work. It's finding the system function weights, not your variable. I don't really understand this one as yet. On Tue, 21 Aug 2001,...

...;- runif(10000,-1,1) plot(density(samp)) Instead of varying between -1 and 1, the density varies between approximaly -1.5 and 1.5 Could someone explain me what is happening ? Maybe some arguments for density estimation need to be set ? Waiting for an answer, Thanks in advance Isabelle. Isabelle Zabalza-Mezghani, PhD IFP - Research Reservoir Engineer

...for an output on screen, but it reveals bad as soon as I assign this function to an object (for ex: tmp <- fac.design( ....) ) since only the last command I performed (here print(attr(design,"fraction"))) is assigned to my object tmp. I hope someone can help me ... Regards, Isabelle Zabalza-Mezghani -- Isabelle Zabalza-Mezghani Tel : 01 47 52 61 99 Institut Fran?ais du P?trole E-mail : isabelle.zabalza-mezghani at ifp.fr 1-4 Av. Bois Preau - Bat Lauriers 92852 Rueil Malmaison Cedex, France -------------- next part -------------- An HTML attachment was scrubbed... UR...

...tation. Can someone explain me ( in details please) the way to install this package. I've already read the doc relative to this topic, but I'm afraid to be too bad in Informatic to understand really well the install process. I hope someone has an answer for me Thanks in advance, Isabelle Zabalza-Mezghani -- Isabelle Zabalza-Mezghani Tel : 01 47 52 61 99 Institut Fran?ais du P?trole E-mail : isabelle.zabalza-mezghani at ifp.fr 1-4 Av. Bois Preau - Bat Lauriers 92852 Rueil Malmaison Cedex, France -------------- next part -------------- An HTML attachment was scrubbed... URL...

...ble in comparison with the intercept) and the R2 value is not equal to 1 (Multiple r2 = 0.72, and adj r2 = -0.187), although the residuals are near zero. I know, it is a very special case (regression is not necessary), but it is just to understand what is happening. Thank you in advance, Isabelle Zabalza-Mezghani -- Isabelle Zabalza-Mezghani Tel : 01 47 52 61 99 Institut Français du Pétrole E-mail : isabelle.zabalza-mezghani at ifp.fr 1-4 Av. Bois Preau - Bat Lauriers 92852 Rueil Malmaison Cedex, France -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-....

...es R use one of these process ? (I've already read the R documentation on this topic, and it is still not clear in my mind). Furthermore, how can I make prediction using this model, I mean how should I specify the new data (especially for m). Thanks in advance for your help Regards, Isabelle Zabalza-Mezghani -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request...

Hi, I would like to have some advise about how to install Dopt on R for Windows. I can not manage to properly compile Dopt.f anf to get a suitable dll for R. Can someone explain me step by step what should I do ? Thanks in advance Isabelle Zabalza-Mezghani

...matrix (typically a spatial distribution of a physical property ... pressure). Is there any kind of approach to deal with that ? I don' t know to group cells together to dicrease the dimension of the problem ... I have no idea and I really need some help Thanks in advance Isabelle Isabelle Zabalza-Mezghani Institut Fran?ais du P?trole France

...t as soon as I invoke the predict method for a dataframe "newdata", the methods runs and give me back prediction at the fitting points but not for newdata. Does someone has an explanation for this behavior, and some ideas to make predict.mlm work efficiently. Thanks in advance Isabelle Zabalza-Mezghani IFP-Reservoir Engineering Department Rueil-Malmaison - France

...datasets, but during my study, some results are temporary, and I would like to get back the memory allocated to this temporary object as soon as I remove them. But, as I 've said the garbage collector seems to have no effect on my memory management. Please, I wait for help, Regards, Isabelle Zabalza-Mezghani

..., or to the R application). In fact, I am interesting in re-starting new R sessions during a same Java session to manage memory problems in R with large datasets and numerous commands through SJava interface (just to "clean" memory). Waiting for your help, Regards, Isabelle. Isabelle Zabalza-Mezghani IFP - Reservoir Engineering Department Rueil-Malmaison / France Tel : +33 1 47 52 61 99

...urthermore, when I try to execute the R function which calls Fortran("functest",...) I've got the following message : "Error in .Fortran("functest",...) : C/Fortran function name not in load table". If someone has a solution to this problem .... Thanks Isabelle Zabalza-Mezghani -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-reque...

...a Windows binary version of R 1.6.2, since I want to test the last SJava library (which has been built under 1.6.2) which does not work on R 1.7.1 I've already search on the CRAN web site but on the r1070 page, if I click on 'old', I get an error. Thanks in advance, Isabelle Isabelle Zabalza-Mezghani IFP - Reservoir Engineering Department Rueil-Malmaison, France

...quot;mlm". I would like to know if there is a way to access to each of the 100 underlying models separately (is it a list, ... ?). Which syntax should I use to see and use the 15th model (for instance) just like it is possible for classical "lm" objects. Thanks in advance, Isabelle Zabalza.

...s (Below is part of the code) I have already used such kind of code with no problem. Today, I get a "sink stack is full" error. I wonder if it could be linked with the fact that my .RData has a large size (around 7 Mo) ??? I hope that someone can help me ... Thanks in advance Isabelle Zabalza.