similar to: Decision Trees /Decision Analysis with R?

Hello, I was just assigned to perform a cost effectiveness study in healthcare. We are studying the cost effectiveness of a proposed diagnostic vs. current screening procedures. One of the team members suggest a commercial software package called "TreeAge Pro". Looking at the description, it appears to be a nice GUI to some very simple models that could be easily constructed in R.

For those of you who have used both rspec requests and cucumber, could you summarize the main differences between the two? Do they both serve the same purpose but with different implementation styles or they really aren''t the same thing? I havent'' used requests before, but I like the idea of being able to view both the ''request/behaviour'' and the code on the

Hello, I'm tasked with putting together a cost effectiveness analysis on a proposed medical treatment. The "standard" suggested by someone is an expensive commercial package names "TreeAge Pro" which looks like its just a fancy GUI on top of a decision tree. However, we don't have it and it is expensive to buy. Questions for the group: 1) Are there any interesting

Hi, My code is as the following, ratio<-seq(0,1,by=0.01) payoff<-NULL for (i in 1:length(ratio) ) { payoff1<-100*(ratio[i]>=0.7)+max(100*(1+(ratio[i]-1)*2),0)*(ratio[i]<0.7) payoff<-c(payoff,payoff1) } plot(ratio,payoff, xlab='ST/S0', ylab='Payoff',type='l') I have the discontinuous point at ratio=0.7. I do not want to have the line at 0.7, and would

This error keeps appearing when i perform a paired t-test in R Error in t.test.default(payoff, paired = T) : 'y' is missing for paired test This is the method i have used > read.table("MeanPayoff.txt",header=T) Open Closed1 47.50000 42.37502 49.25000 50.00003 50.00000 49.80004 33.50000 20.00005 34.75000 33.88006 35.50000 20.50007 33.35000 12.87508 50.00000

Hello everyone. I would like to create many objects with R. Does R support objects? The number of objects needed is not predetermined and it is a parameter specified by the user. If the user selects to create many objects like 100, would it be possible to handle each one by some index? I would like to thank you in advance for your help. Best Regards Alex [[alternative HTML version

Hello to all, I have recently upgraded to SAMBA 3.4.2 on Solaris 10, and reconfigured it to use domain authentication (security = domain). We slapped guest authentication on most shares, with an explicit "valid users = ...." on a small number of sensitive shares. Due to the number of users we were looking at, we set up two UNIX groups "payroll" and "payoff" and

Dear WizaRds! I am sorry to ask for some help, but I have come to a complete stop in my efforts. I hope, though, that some of you might find the problem quite interesting to look at. I have been trying to estimate parameters for lotteries, the so called utility of chance, i.e. the "felt" probability compared to a rational given probability. A real brief example: Given is a lottery

Warren Young wrote: > On Feb 15, 2019, at 1:14 AM, Turritopsis Dohrnii Teo En Ming > <tdteoenming at gmail.com> wrote: > >> >>>> Could you recommend affordable and reliable cloud storage for 50 TB >>>> of data? >>> >> My budget is around USD$50 per year. >> > > The cheapest RAID-friendly drives we?re buying these days are

Is there a way to coax java services running under tomcat to use the system authentication methods set up through PAM? In my case, this would be users in the local passwd file or through smb to a windows domain. I've added mod_auth_pam to get this effect with apache but would like to also handle java web services. -- Les Mikesell lesmikesell at gmail.com

john said: > Have you considered using a PEG instead of regexes? for all you home-schooled and self-taught programmers for whom "peg" is far too computer-sciencey for comfort, consider as an alternative the simple methodology i use... i split the text-file on blank lines and place it in an array. that is first-cut for my light-markup format, a.k.a., "zml" -- zen

Hi all i have an interesting project that i have been working on. i intended to set this as a first year programming problem but then changed my mind since i thought that it might be too difficult for them to program. the problem is as follows: You have been approached by a local casino in order to investigate the performance of one of their slot machines. The slot machine

Greetings! The original version of this tutorial was written by Curt Hibbs and published on ONLamp.com. It served as my introduction to both Ruby and Rails. Unfortunately, I experienced some frustration working through it. This was due first to the fact that I was using Instant Rails, not Rails, and second, to the fact that Rails itself has grown since Curt wrote the article. Despite my

Hello R experts What does this error means and how to resolve this issue (cannot change value of locked binding for ). Please suggest > mc = MonteCarloOption(dt = 1/360, pathLength = 30, mcSteps = 5000, mcLoops = + 50, init = TRUE, innovations.gen = sobolInnovations, path.gen = wienerPath, + payoff.calc = arithmeticAsianPayoff, antithetic = TRUE, standardization = + FALSE, trace = TRUE,

Timothy B. Terriberry wrote: > It doesn't even really matter which architecture you're actually on. In > any format that is to be used on both, it is always better to pick one > and stick with it. Otherwise you require _both_ architectures to write > additional code that is largely useless. Unless you can guarantee that > you're writing streams that are only going to be

Could I have some suggestions as to how (various ways) I can display my confidence interval results? rm(list = ls()) set.seed(1) func <- function(d,t,beta,lambda,alpha,p.gamma,delta,B){ d <- c(5,1,5,14,3,19,1,1,4,22) t <- c(94.32,15.72,62.88,125.76,5.24,31.44,1.048,1.048,2.096,10.48) post <- matrix(0, nrow = 11, ncol = B) theta <- c(lambda,beta) beta.hat <- 2.471546 for(j

I am used to using the replace command to quickly replace strings in file, but it's not available on some of my fresh CentOS 5.4 servers. "yum info replace", "yum whatprovides replace", and "yum search replace" doesn't show me which package(s) to install to get it. So, does anyone know which package to install to get the "replace" command? Google

On 08/12/11 03:56 PM, Ivan Krasin wrote: > Hi llvm team! > > I'm currently working on the extended version of llvm-ld, which has an > ability to check if all the symbols present (and fail if some symbols > are not resolved), treat archives in the right way (link all the object > files in the archive if it's specified as the regular input, not as -l) Is that the

My company built a little business application in FoxPro many years ago, and it's gradually grown into a giant ball of mission-critical haywire. We've starting porting small parts of it to PostgreSQL, but it will probably take years to complete the project. In the mean time, I've been considering the option of hacking Samba to present a set of virtual files that are actually

Hi-- About 10 days ago I switched from a Red Hat 9.0 machine as my Samba server to Ubuntu. Ever since, things have been slow. How do I mean, slow? 1st clue: previously, when I saved docs in OOo Writer, I would go ctrl-S and once every 4th or 5th time it would say it couldn't create a backup; now it is every time. So to save I have to go ctrl-S esc esc ctrl-S. 2nd clue: WinXP on login to