search for: semeria

...lot(cl.pam.2) perform a right partitioning and silhouette plot on the old R-1.6.2 instead "Error in clusplot.default(x$diss,...... ; x is not numeric" is the output on the new R-1.7.0. Same platform: RH8.0 i686. Some suggestions? A.S. ---------------------------- Alessandro Semeria Models and Simulations Laboratory The Environment Research Center - Montecatini (Edison Group), Via Ciro Menotti 48, 48023 Marina di Ravenna (RA), Italy Tel. +39 544 536811 Fax. +39 544 538663 E-mail: asemeria at cramont.it

...uot;-2",arr.ind=T) row col [1,] 1 5 [2,] 2 5 [3,] 3 5 [4,] 4 5 [5,] 5 5 May be the original matrix 'cluster.matrix' is not properly a numerical matrix!? But 'str' say num[...] !!?? Some suggestion. Tks! A.S. ---------------------------- Alessandro Semeria Models and Simulations Laboratory Montecatini Environmental Research Center (Edison Group), Via Ciro Menotti 48, 48023 Marina di Ravenna (RA), Italy Tel. +39 544 536811 Fax. +39 544 538663 E-mail: alessandro.semeria at cramont.it

Dear all, Is there any generic algorithm code for optimization implemented in R? I searched without success. Thanks, -- Zhu Wang Statistical Science Department Southern Methodist University Phone: (214)768-2453 Fax: (214)768-4035 Email: zhuw at mail.smu.edu

History files saved using nFile Save History do not open when using File Load History. I notice that when they are saved they do not seem to have a file extension and there is no option to chose an extension. Is this a problem. Other than this it seems so simple that I can't see what the problem is. I've tried using loadhistory and savehistory with the same problems. The syntax guide

I have written a function to plot data which will be used for various different chemistries. A simplified version is: plot_data <- function(risk,levels,chem,sd2,measure){ plot(risk, levels,main=paste ("per", sd2, measure, "\n in usual", chem)) } The problem is with the title. This works fine if the variable "chem" is just text, but if it is an expression then

Hello, I am analysing several samples whose sizes are from 9 to 110. I would like to test their distribution with R, whether they are normal or not. I wonder which test for normality from R should I use . Thank you for help. Samuel Samuel BERTRAND Doctorant Laboratoire de Biomecanique LBM - ENSAM - CNRS UMR 8005 151, bd de l'Hopital 75013 PARIS Tel. +33 (0) 1 44 24 64 53 Fax +33 (0) 1

Hi everyone, I ve been using R for months and find it really practical and straight forward. However (the inevitable however), I am finding it very slow for one of my operations: it s basically an itertation over i and j in a pretty big table (4* 4608). It takes 30 minutes!!!! Thanks Ps:if it can help here is the source: median1<-matrix(nrow=4608,ncol=1)

...te different from those of 'plot' : >plot(table,type="l"...) # start graph from x = 0 >lines(table,type="l"...) # start graph from x = 1 Some sugestions? Thanks in advance! A.S. ---------------------------------------------- Sincerely yours. Dr. Alessandro Semeria Tel. +39 544 536811 Models and Simulation Lab of Fax. +39 544 538663 The Environment Research Center - Montecatini (Edison Group), E-mail: asemeria at cramont.it Via Ciro Menotti 48, 48023 Marina di Ravenna (RA), Italy -.-.-.-.-.-.-.-.-....

Hi all, I have currently been using the book Modern Applied Statistics with S from Venables and Ripley. At chapter 6 on Linear Statistical models I wanted to produce the plot as shown by "Figure 6.1" using Whiteside's data. xyplot command seems not to work on my version of "R"(version 1.7.0) running on different environments (Win XP, Win 98 and Win 2000). I then used the

Hi A very simple question on number formats. After some calculations, some variables I have come out looking like this: -1.892972e+00 Now apart from the fact that the "e+00" is completely redundant, I would rather have the number represented without the e bit. I want to export data like this to a text file and would rather have: -1.892972 than -1.892972e+00 I have tried

I cannot discover how to set or find the working directory in Rweb, so that I can source() a file from the server. The file I source() must refer to a data file in its directory. setwd() does not do anything, and getwd() says that the working directory is in /var/www/cgi-bin/ (on Linux). (I have a student who installed R on her own computer and analyzed half of her data, and then her computer

dear all, I try to update my Rversion fro 1.7.1 to 1.8.1 on linux. I have a problem when I try to install pacakges from Bioconductors with : source("http://www.bioconductor.org/getBioC.R") and getBioC(relLevel="release") somme errors append and when I make a library(affy) for example I obtain : > library(affy) Error in setIs("character",

May be you aren't on the right working dir: getwd(),setwd(). Your R-script are able to find the thyphoon.txt path? Best! A.S. ---------------------------- Alessandro Semeria Models and Simulations Laboratory Montecatini Environmental Research Center (Edison Group), Via Ciro Menotti 48, 48023 Marina di Ravenna (RA), Italy Tel. +39 544 536811 Fax. +39 544 538663 E-mail: alessandro.semeria at cramont.it

Hi, In the following code, I got an error meesage if an input file is empty, and the program stopped running. Could someone to tell me how to handle this problem. I want the program to keep running. Thanks. for i in [1:3] { file=paste("file", i, ".dat") x <- read.data(file) x(11) plot(x); dev.off() }

...you connect to a remote machine with ssh with a user name "user" you aren't able to use the specific shell profile ($PATH,....) of "user", then you have to specify the complete PATH of all command (i.e. /usr/local/bin/R). Best A.S. ---------------------------- Alessandro Semeria Models and Simulations Laboratory Montecatini Environmental Research Center (Edison Group), Via Ciro Menotti 48, 48023 Marina di Ravenna (RA), Italy Tel. +39 544 536811 Fax. +39 544 538663 E-mail: alessandro.semeria at cramont.it

hello which package do you recommend for spatial autocorrelation ? regards Ahmet Temiz ______________________________________ Inflex - installed on mailserver for domain @deprem.gov.tr Queries to: postmaster at deprem.gov.tr ______________________________________ The views and opinions expressed in this e-mail message are ...{{dropped}}

Dear expeRts, I collect some lab specific functions for a package. Some of this functions need initial data (ini files written in R-code). My question is: Where is the place in the package structure for such files; how to load the files? I think something like: source(paste(R.home(),"/library/__pkg__/data/__.ini.R", sep="")) looks a bit clumsy. I haven't find something

On gentoo: emerge R and dowload,configuration, compilation of all you need to working with base R is performed. Best! A.S. ---------------------------- Alessandro Semeria Models and Simulations Laboratory Montecatini Environmental Research Center (Edison Group), Via Ciro Menotti 48, 48023 Marina di Ravenna (RA), Italy Tel. +39 544 536811 Fax. +39 544 538663 E-mail: alessandro.semeria@cramont.it Kenneth <krcabrer@epm.net.co> Sent by: r-help-bounces@stat....

Hi, I've searched the archives for a discussion on the use of R for developing "small world" or "scale-free" network models but have been unable to dig anything up. Is anyone working on these types of models using R, and if so, have you found this language amenable to their development? thanks, matt farnsworth

As a newbie to R, I need to learn my way around (no previous experience of S).What books, doc for R are recommended? I'm interested primarly in non linear regression and process modelling (and have downloaded the R documentation from the site). Thanks for all tips Anne