similar to: plot a function with a vector as argument

Dear List, I am using constrOptim to solve the following fr1 <- function(x) { b0 <- x[1] b1 <- x[2] ((1/(1+exp(-b0+b1))+(1/(1+exp(-b0)))+(1/(1+exp(-b0-b1)))))/3 } As you can see, my objective function is ((1/(1+exp(-b0+b1))+(1/(1+exp(-b0)))+(1/(1+exp(-b0-b1)))))/3 and I would like to solve for both b0 and b1. If I were to use optim then I would derive the gradient of the

Hi, i am trying to run an ANCOVA and a bootstrapped ANCOVA analysis on a specific data set. I am using the ancova and ancboot functions as in the following code: setwd("C:/Users/User/Desktop/Rdatabilingualstudy2012") bilingualismdata<-read.spss("bilingualdataforconferences2012.sav", use.value.labels = TRUE, to.data.frame = TRUE)

Dear List, I have the code below, where I am using the constrained optimisation package, 'constrOptim.nl' to find the values of two values, b0 and b1. I have no problems when I enter further variable information DIRECTLY into the functions, fn, and heq. In this instance I require fn to have -0.0075 appended to it, and in the case of heq, h[1] has -0.2. library(alabama)

In our recent workshop on "Multilevel Modeling in R" we discussed handling data for multilevel modeling. An classic example of such data are test scores of students grouped into schools. We may wish to model the scores as functions of both student-level covariates and school-level covariates. Such data are often organized in a multi-table format with a separate table for each level of

Dear list, I have been trying to use coxme in R 2.3.1. When I use coxme in the following data sim.fr1, i get "Warning messages: using 'as.environment(NULL)' is deprecated" Why does it occur? How can I hide such warning message, especially when coxme is under a loop? Mohammad Ehsanul Karim (Institute of Statistical Research and Training, University of Dhaka) >

Dear R users, I used to "OPTIM" to minimize the obj. function below. Even though I used the true parameter values as initial values, the results are not very good. How could I improve my results? Any suggestion will be greatly appreciated. Regards, Kathryn Lord #------------------------------------------------------------------------------------------ x = c(0.35938587,

Dear R users, I used to "OPTIM" to minimize the obj. function below. Even though I used the true parameter values as initial values, the results are not very good. How could I improve my results? Any suggestion will be greatly appreciated. Regards, Kathryn Lord #------------------------------------------------------------------------------------------ x = c(0.35938587,

For a solution that does not require any change to the original function being optimized, the following one-liner could be used, which converts existing functions to functions that return only the first element: returnFirst <- function(fun) function(...) do.call(fun,list(...))[[1]] Example: fr <- function(x) { ## Rosenbrock Banana function x1 <- x[1] x2 <- x[2] ans

Hello Everyone, I am a newbie. I am supposed to upgrade openssh on a centOS machine. Following are the current versions of openssh and centOS. /tmp# /usr/sbin/sshd -V OpenSSH_4.3p2, OpenSSL 0.9.8e-fips-rhel5 01 Jul 2008 /tmp# rpm -q centos-release centos-release-5-2.el5.centos I have already tried the following link. http://fr2.rpmfind.net/linux/rpm2html/search.php?query=openssh I am unable

NB: This is real not spam... looks to be quite good :) Cya Peter Hi I am using a new service to keep in contact with my friends. Use the link below to become part of my address book. In the future I will be able to see any changes in your contact details. http://www.bebo.com/fr1/12574050a478627078b188344281c844017339d70 Thanks. Peter

What is this all about? Seems to be related to my attempt to load hplip-3.10.9 to support an HP Photosmart 3210 all-in-one for scanning through saned. from /var/log/messages: Jan 31 20:07:26 desk python: [2851]: error: dbus failed to load (python-dbus ver. 0.80+ required). Exiting... Jan 31 20:07:49 desk python: hp-systray[3402]: warning: Qt/PyQt 4 initialization failed. When I check for

Am trying to update my wine i get the following .. [] download]# yum update wine* Loading "priorities" plugin Loading "fastestmirror" plugin Loading mirror speeds from cached hostfile * epel: ftp.nluug.nl * rpmforge: fr2.rpmfind.net * base: ftp.halifax.rwth-aachen.de * updates: ftp.halifax.rwth-aachen.de * addons: ftp.halifax.rwth-aachen.de * extras:

guys, i have the yum plugin -> fastest mirror . But not even once i have seen it selecting repos which are near my region such as japan or australia ( where i get the best speeds). Something is wrong. It seems stuck with these 3 sites ; Determining fastest mirrors * ftp-stud.fht-esslingen.de : 0.309373 secs * apt.sw.be : 0.483867 secs * fr2.rpmfind.net : 0.503842 secs

Hello R users, This is more of a convenience question that I hope others might find useful if there is a better answer. I work with large datasets that requires multiple parsing stages for different analysis. For example, compare group 3 vs. group 4. A more complicated comparison would be time B in group 3 of group L with B in group 4 of group L. I normally subset each group with the

libtool-2.2.6-15.5.el6.x86_64 upstart-0.6.5-13.el6_5.3.x86_64 atmel-firmware-1.3-7.el6.noarch redhat-rpm-config-9.0.3-42.el6.centos.noarch plymouth-scripts-0.8.3-27.el6.centos.1.x86_64 patchutils-0.3.1-3.1.el6.x86_64 bc-1.06.95-1.el6.x86_64 cscope-15.6-6.el6.x86_64 coreutils-8.4-37.el6.x86_64 ncurses-devel-5.7-3.20090208.el6.x86_64 libselinux-utils-2.0.94-5.8.el6.x86_64

[root@fr1 tmp]# cd /tmp [root@fr1 tmp]# cpio -id < /usr/lib64/guestfs/supermin.d/daemon.img cpio: sbin/guestfsd not created: newer or same age version exists cpio: etc/guestfsd.suppressions not created: newer or same age version exists 3629 blocks [root@fr1 tmp]# ldd /tmp/sbin/guestfsd linux-vdso.so.1 => (0x00007fff9e9d4000) libacl.so.1 => /lib64/libacl.so.1

Hi all, I'm sorry if this is a quick dumb one, but how does one install ip6tables? Running yum install ip6tables doesn't return anything, even with the rpmforge repository enabled: root at mercury:[~]$ yum install -y ip6tables Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * addons: mirrors.netdna.com * base: pubmirrors.reflected.net * extras: mirror.vcu.edu *

Tried to run yum this morning on CentOS 5.x 64bit and ran into weird issue this morning: [root at server ~]# yum clean all Loaded plugins: fastestmirror Cleaning up Everything Cleaning up list of fastest mirrors [root at server ~]# yum update Loaded plugins: fastestmirror Determining fastest mirrors * base: mirror.unl.edu * extras: mirror.steadfast.net * rpmforge: fr2.rpmfind.net * updates:

List, both on RHAS3 update3, update 4, Samba source code 3.0.9 thru 11 gives SIGSEGVs on make check. Installing the buggers and trying to run them gives the same. *THOUGH*. The Red Hat beta 3.0.9 srpm at fr2.rpmfind.net comples and runs "like a little sun" ("net als een zonnetje", in Dutch). Anyone compiled Samba 3.0.11 on Red Hat RHAS3/RHEL3? Not "how", just

Hi, Two doubts. 1. What I've to replace in "NEEDED"? or I need to just run the whole command you given 2. You mean this one, rpm -qa | grep libguestfs* On Mon, Mar 16, 2015 at 5:35 PM, Richard W.M. Jones <rjones@redhat.com> wrote: > On Sat, Mar 14, 2015 at 11:14:55PM +0530, Thirumalai Nambi wrote: > > Thanks for your update, > > > > I got the