similar to: Associations and Math between Models

Dear R-helpers, let us assume, that I have the following dataset: a <- rnbinom(200, 1, 0.5) b <- (1:200) c <- (30:229) d <- rep(c("q", "r", "s", "t"), rep(50,4)) data_frame <- data.frame(a,b,c,d) In a first step I run a glm.nb (full code is given at the end of this mail) and want to predict my response variable a. In a second step, I would

Hi R users, The nlme library enabled several alternate error structures useful for longitudinal or repeated-measures data. For example, a continuous AR(1) process: model_2 = update(model_1, correlation = corCAR1(form = ~ time | subject)) Does anybody know if this is available in lme4? Thank you Ben -- View this message in context:

Dear R-helpers, I try to perform glm's with negative binomial distributed data. So I use the MASS library and the commands: model_1 = glm.nb(response ~ y1 + y2 + ...+ yi, data = data.frame) and predict(model_1, newdata = data.frame) So far, I think everything should be ok. But when I want to perform a glm with a subset of the data, I run into an error message as soon as I want to predict

Dear all, I am trying to evaluate the optimisation behaviour of a function. Originally I have optimised a model with real data and got a set of parameters. Now I am creating simulated data sets based on these estimates. With these simulations I am estimating the parameters again to see how variable the estimation is. To this end I have written a loop which should generate a new simulated data

To whom it may concern: I have a question about how to appropriately conduct an lmer analysis for negative binomially distributed data. I am using R 2.2.1 on a windows machine. I am trying to conduct an analysis using lmer (for non-normally distributed data and both random and fixed effects) for negative binomially distributed data. To do this, I have been using maximum likelihood,

I''ve got a web-app currently partially working. The user uploads a .txt, .docx or .doc file to the server. Currently the model handles those files, saves some metadata (the extention and orig filename) then saves the file to the hard drive. Next it converts the doc and docx files to plain text and saves the output to a txt file. My problem is I want to copy the plain text contents of

Hey guys, As most of you know, Rails 3.1 introduces query caching for ActiveRecord. Great change all-in-all, but for those of us with IT department mandates for using MySQL (yeah, yeah, I know...), it''s kind of a mixed bag. I need to disable query caching in a project I''m building based on 3.1. I''ve tried a couple different approaches, both without any success. I

The form is inside a table, enclosing a <tr> = form_tag admins_backoffice_dashboards_path, :remote =>"true" do %tr.search %th= link_to t(:clear), "#", :id => :clearFilter %th= select_tag :role, options_from_collection_for_select(Role.global, :id, :name, :selected => @role_id ) %th= text_field_tag :email, nil, :value

hi , I have started to learn ruby on rails and I''m an absolute beginner . when I try to rake a database like "rake db:schema:dump " I get this message : "rake aborted ! unknown database ''cms_development'' " although I have modified my database.yml and have created my database before. I''ll be appreciated if someone can help me with this thanks

Hey all, Chronic will parse a date range in console: Chronic.parse(1/1/2011 - 1/1/2012, :guess => false) => 2012-01-01 12:00:00 -0500..2012-01-01 12:00:01 -0500 However, when I use logger to check if it''s parsing in application, it is not: logger.info "The value of history date is #{history_date}" => The value of history date is 1/1/2011 - 1/1/2012

Hi Everyone, I am pretty new to Rails. I have very little idea about everything. But for my new project i have been asked to do some research on Solr search and implement it on Rails. Please provide me some link on tutorials and guides about Solr on Rails. Trouble is... have to do it by tomorrow. -- Posted via http://www.ruby-forum.com/. -- You received this message because you are

Dear R helpers, I have the following model model_1<-glm(y~A+B+C+E+A:D,contrasts=list(D=contrasts_D),data=mydata,na.action=na.omit) with: options(contrasts=c("contr.sum", "contr.poly")) A,B and E are 2-levels factor, C is covariate, D is 20 levels factor with 10 in relation with the first levels of factor A, the other in relation with the second levels of factor A

So I just got involved in a huge team project with RoR and PostgreSQL. But I can''t find anywhere on the internet to find a proper way to put them together. I did find one but it is for iOS :-/ http://railscasts.com/episodes/342-migrating-to-postgresql?view=asciicast I have them both installed and the gem package for postgres also. the database.yml is already configured. I just

Apologies in advance ...this may be a really dumb question but here goes. @formatted_question[:a] contains text with HTML markup. I want to display it in a field so I can control its vertical and horizontal size on the page. When it is displayed on the page now, rather than interpreting the HTML, it is output into the text field as a string with all HTML tags showing. What am I doing wrong??

Hi, I have a rails app running which provides an interface to create/update data stored in a DB. How do i develop a cmd line interface to do the same i.e i should be able to retrieve/update data to a DB. -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email

Hello, I am building an application that consists of two areas; a website and an API. I would like the website to use HTTP and the API to use HTTPS. How can I set this up for my Development Environment? I am using Thin, which I can start using the --SSL flag. However this means any HTTP urls will fail. As far as I can see it is impossible to have a server handle both HTTP and HTTPS, so how do

Hi Group, I''ve got mysql database installed and the server running on a Mac Pro with latest mountain lion setup 10.8.3. I''m able to use mysql tools like mysql, mysqladmin to converse with it. :} I use RVM''s scripts to fetch gems. I''ve visited RVM''s website but their advise to get "mysql gem loaded" does the same thing as below aborted

Hello, I''ve got some experience in Java, and recently, I''ve begun to practice with Rails. One of the things that has surprised to me, after I''ve read some books, it''s that classes hasn''t got attributes; the attributes are in the files db/migrate/*. After that, the ORM makes the mapping with de Database. But the attributes aren''t in the files

Hello every body, I just started working on Ruby on Rails and as i am progressing I noticed that I can not start my WEBrick server on the Command prompt. The following are the various error messages that I am going. Microsoft Windows [Version 6.0.6002] C:\Users\imedia2\Desktop\test\helloworld>ruby script/server => Booting WEBrick => Rails 2.3.5 application starting on

hi, i am using rails 3.0.10 i am trying with sample application for searching data from table and updating my search.html.erb file is <%= form_for (@employee) do |s|% <div id ="search_details"> <%= s.text_field :name%> <%= s.text_field :emp_id, :onfocus => ''sal(document.getElementById(''employee_name'').value);''%>