search for: interventional

Dear R List, I am trying to use mixed models to analyze an intervention and want to make sure I am doing it correctly. The intervention is for lowing cholesterol and there are two groups: one with an intervention and one without. The subjects were evaluated a differing amount of time, so there were between 2 and 7 visits, equally spaced. Sample output is below. TC is total cholesterol,

Hi R-users, I am using arima to fit a time series. Now I would like to include an intervention component "It (0 before intervention, 1 after)" using different types of impacts, that is, not only trying the simple abrupt permanent impact (yt = w It ) with the xreg option but also trying with a gradual permanent impact (yt= d * yt-1 + w * It ), following the filosophy of Box and Tiao

Hello, I need to plot the means of some outcome for two groups (control vs intervention) over time (discrete) on the same plot, for various subsets such as gender and grade level. What I have been doing is creating all possible subsets first, using the aggregate function to create the means over time, then plotting the means over time (as a simple line plot with both control & intervention

Dear all, I'd appreciate some advice on the following problem. I'm attempting to analyse a nested cross-sectional design in which an intervention was offered to a series of randomly selected (small) communities, so the unit of randomisation is the community. All available individuals in each community were interviewed before the intervention and again at follow-up

Hello, I'm currently using auto.arima to verify the order of my arima model. I would like to use the model to conduct an intervention analysis. The problem is that, when I include a step function in auto.arima, by including a binary variable in "xreg", the arima order that auto.arima gives is different from when I don't include it. From my understanding, the

The following script is written by the author of a book on R--Andy Field: You can also download the small datafile, hiccups.dat, from this address: http://www.sagepub.com/dsur/study/articles.htm The script: hiccupsData <- read.delim("Hiccups.dat", header = TRUE) hiccups<-stack(hiccupsData) names(hiccups)<-c("Hiccups","Intervention")

Folks I have several remotely-located servers, donated by folks not all of whom are computer geeks, let-alone Linux aware. In earlier versions of Centos, I directed them to perform a minimal NetInstall (not too difficult to direct over the phone), and then issue two commands after the first boot. One was a 'curl' to download a script of mine, and the second was a dot-command to run

Hi I'm trying to measure the effect of a policy intervention (Box and Tiao, 1975). This query has to do with the coding of the model rather than with the particulars of my dataset, so I'm not providing the actual dataset (or a simulated one) in this case, apart from some general description. The time series are of length n=34 (annual observations between 1977 and 2010). The policy

Dear all, I am wondering how/if it is possible to implement the general methodology of Box and Tiao: "Intervention analysis with applications to economic and environmental problems" (JASA, 1975, pages 70-79) in R? This question has been posted before but without a positive response (at the time): tolstoy.newcastle.edu.au/R/help/06/03/22934.html Perhaps there have been some new

Check to see what port the second printer was assigned to... > -----Original Message----- > From: Karl E. Jorgensen [mailto:samba@e-jorgensen.freeserve.co.uk] > Sent: Monday, May 20, 2002 12:41 PM > To: Samba Mailing List > Subject: [Samba] Printer: User Intervention Required - Use Printer > Offline > > > For some reason, I cannot get samba (or Win98, depending on

Dear everyone, I need R codes to fit an Intervention Time Series Model for two separate policies for a single observed time series. Please, I have prior knowledge of how to fit the impact parameter(omega) but I no not the codes for the decay parameter(delta). Can someone help me? [[alternative HTML version deleted]]

Greetings, I wish to conduct a meta-analysis for which the outcome is a continuous variable measured on the same individuals before and after an intervention. Hence, the comparison is not made between two groups, but within groups, at diffrent times. Each study reports the mean outcome and SD before the intervention and the mean outcome and SD after the intervention. While p-values for

Hi Team, I am running ARIMAX with TSA package. my code is fit2 <- arimax(yseries, order = c(1,0,1),xtransf = data.frame(X1var),transfer=list(c(1,0))) my question is 1st Q.--> If I need to take difference of X1var then what should i do?. What i am doing like submitting R code as X1vard <- diff(X1var) and then i am including in the xtransf. Same time if i need to take difference of

Folks Is there a way to reboot and have a script run without intervention. During initial setup, I'd like to avoid the manual actions of logging on as root and executing a command, but instead have that command run without intervention. The output of the command would still show up on the terminal that initiated the reboot. Security is not a concern here. And I don't want to

Hi there. I've been using Dovecot for quite some time now but I just started using Let's Encrypt certs. Since LE certs are renewed automatically without user intervention I'm wondering if I will need to restart dovecot after that renewal... Has anybody had any experience with that? Thanks so much for your help! Ignacio -------------- next part -------------- An HTML attachment was

Hello R people, I am looking to pay someone to help write some R code. Inputs: Study identifier: ID Number for the study, each ID number is for one study only each block set should only be used for that study. This will require that you store the results from the blocks someplace on the file system. Trait #1: dichotomous rural / urban Trait #2: dichotomous sick / healthy Assignment Ratio:

Hi, Sorry for asking it again. I just thought I asked the question the wrong way. Too much unnecessary details. And therefore, got no replies. I'm configuring a server from, say, a script (automatically). I need it to be done without user saying, "Yes, it's okay to import the key." I was told to run the following command: yum makecache -y --disablerepo=*

Am 12.03.2017 um 16:42 schrieb Yuri Kanivetsky <yuri.kanivetsky at gmail.com>: > > Sorry for asking it again. I just thought I asked the question the > wrong way. Too much unnecessary details. And therefore, got no > replies. > > I'm configuring a server from, say, a script (automatically). I need > it to be done without user saying, "Yes, it's okay to

Am 12.03.2017 um 18:30 schrieb Yuri Kanivetsky: >> what about importing the key beforehand > >> rpm --import keyfile > > That's what I do. But when I try to install a package from that > (passenger) repository manually, yum wants my confirmation: > > # curl --fail -sSLo /etc/yum.repos.d/passenger.repo >

> It looks like the passenger RPM has a script importing the GPG key. Check using "rpm -q --scripts passenger". >From what I can see, it doesn't: # rpm -q --scripts passenger postinstall scriptlet (using /bin/sh): if /usr/sbin/sestatus | grep 'SELinux status' | grep -q enabled; then actual_selinux_variants=; for selinux_policy_file in /etc/selinux/*/policy;