similar to: Two foreign keys on the same column?

Hi There, There are 300 boy students and 100 girl students in a class. One interesting question is whether boy is smarter than girl or not. first given the exam with a difficulty level 1, the number of the student who got A is below 31 for boy, 10 for girl. Then we increase the difficulty level of the exam to level 2, the number of the student who got A is below 32 for boy, 10 for girl. We

Greeting R Community, I'm trying to learn Logistic Regression on my own and am using An Introduction to Logistic Regression Analysis and Reporting (Peng, C., Lee, K., & Ingersoll, G. ,2002). This article uses a Score Test Stat as a measure of overall fit for a logistic regression model. The author calculates this statistic using SAS. I am looking for an [R] function that can compute

Hi! I have used the following command: densityplot(~PV1CIV, groups=SGENDER, data=ISGFINC2, lwd=2, col=1, lty=c(1,2), pch=c("+","o"), key=list(text=list(lab=levels(ISGFINC2$SGENDER), col=1), space="bottom", columns=2, border=T, lines=T, lwd=2, lty=c(1,2), col=1), ref=T, plot.points=F) to produce a lattice density plot presenting the distribution of

Dear friends. Please see the program below and answer if it does simulate a population of 1.000.000 families, each with at max 20000 children (typical in Denmark, you know), constructed such that each family stops having children when more boys than girls are present ? Equal numbers of boys and girls are got in the population, according to the simulation, is that obvious ? ND <- NP <-

I have some data that I read in via read.csv: sales2007 <- read.csv("Total2007.dat", header=TRUE) The data looks like: > sales2007[1:605,] Year DayOfYear Sku Quantity CatId Category SubCategory 1 2007 1 100091 1 10862 HOLIDAY Christmas 2 2007 1 100138 1 11160 PET COSTUMES Famous (Licensed) 3 2007

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How does one implement a likelihood-ratio test, to test whether the variances of the random effects differ between two groups of subjects? Suppose your data consist of repeated measures on subjects belonging to two groups, say boys and girls, and you are fitting a linear mixed-effects model for the response as a function of time. The within-subject errors (residuals) have the same variance in

Hi R, I am using select.list names=c("Ravi", "Raj","Shubha","Nivriti") select.list(names) provides a drop down to choose one of the 4 names. However I would like to know if it is possible to create a classification something like this select.list(names) should give Boys Ravi Raj Girls Shubha Nivriti I should be able to choose

Hi, lme() users, Can some one tell me how to do this. I model Orthodont with the same G for random variables, but different R{i}'s for boys and girls, so that I can get sigma1_square_hat for boys and sigma2_square_hat for girls. The model is Y{i}=X{i}beta + Z{i}b + e{i} b ~ iid N(0,G) and e{i} ~ iid N(0,R{i}) i=1,2 orth.lme <- lme(distance ~ Sex * age, data=Orthodont, random=~age|Subject,

hi, as far I know, iproute QoS works in interface, not in all interfaces. I want give one inner interface priority over other inner, like PRIO one IP over other. HOW? -- Andrius K. Kasparavičius _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/

I'm working on a quick tutorial for my students, and was planning on using Mann-Whitney U as one of the tests. I have the following (fake) data grade <- c("MVG", "VG", "VG", "G", "MVG", "G", "VG", "G", "VG") sex <- c( "male", "male", "female", "male",

Hello boys and girls In the ever-loving spirit of OSS, here''s another feature for s.a.u. In particular it''s called Effect.Accordion, and is a scriptaculified version of openrico''s Accordion. Work in progress, I''ll submit further modifications as the come in, but this is 90% of what needs to be done. I anticipate some bugs when I start using it more. Tested

Under the assumption that in these cases recurring faults aren''t a security issue and it can be expected that the drivers there are going to try to take care of the problem. Signed-off-by: Jan Beulich <jbeulich@suse.com> --- a/xen/drivers/passthrough/amd/iommu_init.c +++ b/xen/drivers/passthrough/amd/iommu_init.c @@ -625,6 +625,18 @@ static void parse_event_log_entry(struct

Dear colleagues, I have another question, which, I think cannot be answered easily by the manual. What is the effect of including both nodefactor("Gender") and nodematch("Gender",diff=TRUE)) for the same variable in the model? Judging from the output (please see below), you cant have estimates for both for boys and girls forthe nodematch command, but I thought that the

Im having an issue that seems to only happen when trying to use a transaction. Ive used transactions many times in the past and Im at a loss as to why im getting the stack level too deep problem. SystemStackError - stack level too deep: actionpack (3.2.13) lib/action_dispatch/middleware/reloader.rb:70:in `'' I have a StackOveflow with more detail -

Hi , I want to test the one below but I got the problem belongs_to :name, :class_name => "Phrase", :foreign_key => "name" in my test context "test"do should have_many :phrases end in language.rb belongs_to :name, :class_name => "Phrase", :foreign_key => "name" error is 1) Failure: test: check has_many and belongs_to

R Users: I am trying to estimate a model of fertility behaviour using birth history data with maximum likelihood. My code works but is extremely slow (because of several for loops and my programming inefficiencies); when I use the genetic algorithm to optimize the likelihood function, it takes several days to complete (on a machine with Intel Core 2 processor [2.66GHz] and 2.99 GB RAM). Computing

Hello Boys and Girls and Everybody. I have recently started using a Macintosh computer to replace the dinosaur of an unbelievably unreliable PC that I have been using for the last 10 years. So far I have been very pleased. I have been using OpenOffice for quite a while now as I find it is mostly superior to Microsoft Office in many ways, HOWEVER - OpenOffice lacks the Voice Recognition Software

Hello, I am working on the API of our webservice. API users need to authenticate some of their calls... When I am performig the call through Firefox, everything is fine as shown in the log : Processing OwnershipsController#new (for 67.207.118.174 at 2008-09-26 16:20:03) [GET] Session ID: BAh7BiIKKmxhc2hJQzonQWN0aW9uQ29udHJvbGxlcjo6Rmxhc2g6OkZsYXNo

This is part of a rails project. The following method is part of the Ams class (a rails model). I''m a bit unsure of the rspec/bdd way of testing this method. def persist_as_domains @current_domains.each do |d| dom = Domain.new dom.domain = d dom.source_id = 1 dom.at = Time.now dom.save end end The following is what came out when I tried to write my test. Notice