similar to: Cross-validation -> lift curve

Hi Everyone, I'm writing to announce a new conference: Predictive Analytics World, Feb 18-19, 2009 in San Francisco (www.predictiveanalyticsworld.com). The goal of Predictive Analytics World is to serve as the go-to event, covering today's commercial deployment of predictive analytics, across industries and across software vendors. In a nutshell, PAW is a warehouse of case studies. And

Hi everyone, Predictive Analytics World's program for Feb 18-19 in San Francisco (www.predictiveanalyticsworld.com) has grown a bit since my post several weeks ago, and is looking better than ever. The conference covers today's commercial deployment of predictive analytics, across industries and across software vendors. In a nutshell, PAW is a warehouse of case studies. In breaking

Hi, This code: n=40 x=17 phat=x/n SE=sqrt(phat*(1-phat)/n) zstar=qnorm(0.995) E=zstar*SE phat+c(-E,E) Gives this result: [1] 0.2236668 0.6263332 The TI Graphing calculator gives the same result. Whereas this test: prop.test(x,n,conf.level=0.99,correct=FALSE) Give this result: 0.2489036 0.6224374 I'm wondering why there is a difference. D. -- View this message in context:

Hi, I've two fitted models, one binomial model with presence-absence data that predicts probability of presence and one gaussian model (normal or log-normal abundances). I would like to evaluate these models not on their capability of adjustment but on their capability of prediction by calculating the (log)likelihood between predicted and observed values for each type of model. I found

Hi r-users,   I would like to use prop.test code and I also calculate manually to test the proportions for 2 groups.  The problem is the answer for the p-value calculated manually are different from prop.test.  Here are the results:   ## Manually   z value: z= (phat-p)/sqrt(pq/n) = (.084-.081)/sqrt(.081(1-.081)/691)=0.289, pvalue=0.7718   ## Using prop.test code > low <- c(56,58) > tot

This came up on r-help but indicates a bug. dnbinom(x,n,p) calls dbinom_raw(n-1,...) which returns 0 for n<1. -thomas ---------- Forwarded message ---------- Date: Thu, 08 Feb 2001 17:10:23 +0000 From: Yudi Pawitan <yudi@stat.ucc.ie> To: Mark Myatt <mark@myatt.demon.co.uk> Cc: R-Help <r-help@stat.math.ethz.ch> Subject: Re: [R] Goodness of fit to Poisson / NegBinomial

Hello, I'm fairly new to R so please excuse me if I am asking something obvious. I have looked in the FAQ, Introduction, and help pages, and searched the archives, but I don't know much about graphics yet. I'm running Red Hat Linux 2.14.18 on a machine blessed with dual 1.5 Xeon processors and 3.7GB of RAM. I have a very large dataset with 27 variables, and in exploring the data

Hello , i am working in the functional time series using the multivariate time series data(hourly time series data). Sir? i am using FAR model more than one order for which no statistical package is available in R, so for this i convert my data into functional form and obtained the functional principle component and from those FPCA i extract their corresponding? FPCscores. Know i use the VAR model

Hi, there I am a graduate student new to coding in S who is hitting a bit of a wall at present using an "optim" function. I am running into some troubles, and was hoping someone might be able to recognize where I am going wrong. As background: I have constructed a loop that carries out a 365-day calculation for a mass-balance model. Basically, the model depends on 2 variables (p,

Hi Aki, I'm not sure if this bug was worked on?? Sadly I ran into it too recently, on version 2.3.4.1. Regards, Aragon On 2018/02/07 13:23, Aki Tuomi wrote: > Hi! > > Thank you for reporting this issue. We'll look into it. Maybe you can > use sqlite3 instead as workaround? > > Aki > > > On 07.02.2018 14:22, Marco Giunta wrote: >> Hi, >>

I still don't think the exp(lp)/(1+exp(lp)) gonna work. Since this is conditional logit model, while this formula is only used in unconditional ones. By using this, one neglects the information based on stratum. Though I don't know how to solve it to. I am also working on a project on this and I do hope there's someone explaining this problem. Will that be a possibility that the phat

Hello , i am working in the functional time series using themultivariate time series data(hourly time series data). Sir? i am usingFAR model more than one order for which no statistical package is available inR, so for this i convert my data into functional form and obtained thefunctional principle component and from those FPCA i extract theircorresponding? FPCscores. Know i use the VAR model on

I am yet another person who is having a problem with Win98 clients needing to make several attempts before successfully logging in to our Samba box. I get the "broken pipe" message in the smb.log just like everyone else. This did not seem to be a problem until we got a phat broadband connection. All the Windows boxes are set to point to our ISP's DNS. I am not running DNS on the

Hi there I thought this would be of particular interest to people using 'optim' functions and perhaps people involved with R development. I've been beaten down by R trying to get it to perform an optimization on a mass-balance model. I've written the same program in excel, and using the 'solver' function, it comes up with an answer for my variables (p, ACT, which

This is a formal announcement of Lguest64. Most are aware of the little puppies (lguest32, or simply lguest, or in some circles "rustyvisor"). But this time the puppies ate a bit too much. No more lean and mean puppies, now we got big fat lazy ones. Running on the hardware that's too lazy to do full virutalization. Yes, lguest now runs on x86_64! As you know, puppies are young,

This is a formal announcement of Lguest64. Most are aware of the little puppies (lguest32, or simply lguest, or in some circles "rustyvisor"). But this time the puppies ate a bit too much. No more lean and mean puppies, now we got big fat lazy ones. Running on the hardware that's too lazy to do full virutalization. Yes, lguest now runs on x86_64! As you know, puppies are young,

Secure FTP through SecureFX 1.8B3: issues (Using OpenSSH 2.1.1p2) I downloaded the latest SecureFX because it now claims support for OpenSSH. I'm like cool, now I'll finally be able to secure my ftp on my gateway. First off, I really like the new configure. Everything went ok, I could ssh into the box just fine. Unfortunately ftp didn't work work through SecureFX. I would get

Hi all, I wanted to let you know about our training seminar on predictive analytics - coming April, May, Oct, and Nov in San Jose, NYC, Stockholm, Toronto and other cities. This is intensive training for marketers, managers and business professionals to make actionable sense of customer data by predicting buying behavior, churn, etc. Past attendees provided rave reviews. Here's more info:

Hi all, I have a rather naive question. I have the height of 100 individuals in a table and I want to assign the tallest 30% as Case=1 and the bottom 30% as Case=0. How do I do that? thanks. jiong The email message (and any attachments) is for the sole use of the intended recipient(s) and may contain confidential information. Any unauthorized review, use, disclosure or distribution is

have placements, clients and case_managers tables with relationships Trying to create new placement record...case_manager_id field exists in clients table. I need the value from related clients record in placements table in placements_controller.rb def create @placement = Placment.new(params[:placement]) case_manager_id = Client.case_manager_id # this doesn''t work if