similar to: Rai and Van Ryzin Model

R-Users, I'm in the process of developing some notes on optimizing likelihoods for a class I'm teaching next term. Can anyone offer examples showing the optimization of a complex likelihood function that they wouldn't mind sharing using optim(). I've adapted some of the S-plus likelihood examplesfrom the ``Guide to Statistics" and the Zip example from ``Statistical Models in

R-users, This may be a simple problem, but I don't have an intuition of how simple it could be. Suppose I have a sequence of numbers corresponding to a series of diagnoses on the same patient over a sequence of time. The diagnoses are coded 1,2,3,4,5, but could come in a sequence like 1,3,2,5,3,5,...etc. Is there a simple way to count the number of times a 1 diagnosis is followed by a 2, or a

Hello. I came across your response in an R forum and could use your help. I have a data set with 472 rows. I want to delete rows 416 through 472. The name of my data set is MERGE. I am an extreme R novice. How do I write a script to accomplish this? Thank you. --- Christopher H. Porter, M.A., M.Ed. Director, Undergraduate Recruitment College of Engineering and Science Clemson University

I'm new to SAMBA and am somewhat confused. So I'll get right to the point. Situation: I am running both UNIX (Solaris 9) and Windows 2000. I have a system running on Windows will be creating some large files. These files need to be input to a system running on the UNIX (Solaris) box. Solution? I would like to be able to have the system on the UNIX box be able to read the files on Windows

Hello All: I am very new to R and am trying to import some (107) text files into R while simultaneously manipulating the data into a structure that I can use. Below is a description of what I am trying to ultimately accomplish. However, I find that I am unable to even read one file into R using the read.table function. I get the following error: > test<-read.table("test4.txt")

I am still fairly new to R and have a fairly rudimentary question. I am trying to name a vector of coefficients retrieved from a multilevel model using the coef function. I guess the default name is "Intercept" and I cannot figure out how to rename it. I have tried the using the code below to name the column of coefficients ind.y derived from an lme model. Unfortunately, the

Hi. I am very new to R and have been diligently working my way through the manual and various tutorials. I am now trying to work with some of my own data and have encountered a problem that I need to fix. I have a dataframe with 8 columns and approximately 850 rows. I have provided an excerpt of the dataframe below. Within column 6 (Question) the numbers 1:33 repeat down the entire column.

I would like to be able, inside a function, to create a new function, and use it as part of a formula as an argument to, say, gnls or nlme. for example: MyTop <- function(data=dta) { Cexp <- function(dose,A,B,m){...} Model <- as.formula(paste("y","~ Cexp(",paste(formals(Cexp),collapse =", "),")")) MyCall <-

Trying to set up wireless networking with CentOS 4.4 on a (new Dell) laptop and have looked at http://www.ces.clemson.edu/linux/fc2- ipw2200.shtml and http://www.centos.org/modules/newbb/viewtopic.php? topic_id=2532&forum=30 regarding use of ipw2200, which is included in the kernel. The problem is that it doesn't appear to be actually installed/loaded because the Intel Corporation

Hi, I have been looking for CentOS for sparc based machines without luck. I tried to use birorrent to download it without luck. I really would appreciate anyone letting me know because I have a Sun Ultra 60 that I would love to install it on. Thanks! -- Dexter Dexter F. Stowers Systems Administrator Unix/Linux/Windows/Mac Clemson University -- Desire is the ingredient that changes the hot

On Jul 1, 2013, at 12:47 PM, John Thurston wrote: > I'm running Solaris 10 on a dozen SPARC boxes. I'd like to explore NUT for use with our snmp UPS, but I'm unable to complete the configure/make/install process. > > Can anyone share a how-to for solaris? Here's some general NUT-on-Solaris information: http://people.cs.clemson.edu/~gdowdin/work/ch06.html Can't

=20 =20 I use the FEAR package available from=20 =20 http://www.clemson.edu/economics/faculty/wilson/ =20 which works perfectly in Rv2.2.0; after installing from a local zip and loading I find: =20 USING R version 2.2.0 =20 > local({pkg <- select.list(sort(.packages(all.available =3D TRUE))) + if(nchar(pkg)) library(pkg, character.only=3DTRUE)}) Loading required package:

Hello all- I am doing a survival analysis for two species of invasive plants I outplanted to edges and interiors of island and mainland sites in a local reservoir. I am using the KM estimate and had no problem doing survdiff for my data using the following code: S4<-Surv(outplant$SurvTime, outplant$StatusD6) diff4=survdiff(S4 ~ outplant$Species+outplant$SiteType+outplant$EdgInt) diff4

Looking for recommendations.... On WinXP, I use MusicMatch Jukebox version 9 for all my tinkering with mp3s. What do you guys use that would match the functionality of MMJB? I'm mainly interested in the music library setup of MMJB... -- --- David Woyciesjes

I have been *manually* dealing with my wired and wireless network interfaces on my laptop. I have a pair of config files (in /etc/sysconfig/network-scripts/: ifcfg-eth0 (wired: Intel Corporation 82540EP Gigabit Ethernet Controller (Mobile)) and ifcfg-eth1 (wireless: Intel Corporation PRO/Wireless LAN 2100 3B Mini PCI Adapter), both with USERCTL=true (and ifcfg-eth0 also has ONBOOT=true). I have

Hi, I need to ask a question about the usuage of these particular packages...do you install the binaries for each or do you use what comes with the OS out of the box??? The reason why I am asking is because I am having problems using the one that comes with the OS. Everything else runs great but I am using CentOS for the first time and I want to make sure that I am not spinning my wheels

Dear all, I am "still" fairly new to R and newer still to linux (opensuse). I want to install a package called "FEAR" from "http://www.clemson.edu/economics/faculty/wilson/Software/FEAR/fear-download.html". So, I downloaded the tar.gz file called "FEAR-linux-64bit-2.6.16.60-0.21-smp.tar.gz" and it is in the directory "/home/sambit/Downloads"

Running R version 2.13.1 under Ubuntu 10.10 (kernel version 2.6.35-30-generic) on a x86-64 laptop with gfortran 4.4, I'm trying to install and use the FEAR package from http://www.clemson.edu/economics/faculty/wilson/Software/FEAR/fear.html. I downloaded the the FEAR 1.15 package for 64-bit Linux (compatible with R-2.12.0 compiled with GCC, GNU Fortran 4.1.2, Linux kernel 2.6.16.60 SMP) to the

Hello all, Ok, so all this talk has prompted my group to consider installing a firewall. It looks like the most economical approach would be to drop in a machine running linux between our router and our switch to perform this function. We have a 100Mbit full duplex connection here (to other routers on campus), so we would like to be able to pump data through the firewall at this rate. Is

On 7/1/2013 2:55 PM, Charles Lepple wrote: > On Jul 1, 2013, at 12:47 PM, John Thurston wrote: > >> I'm running Solaris 10 on a dozen SPARC boxes. I'd like to explore NUT for use with our snmp UPS, but I'm unable to complete the configure/make/install process. >> >> Can anyone share a how-to for solaris? > > Here's some general NUT-on-Solaris