similar to: Nil object for nested resource

I don''t have a class by the name of "ReviewersScoreCard", yet my many to many configuration looks as follows. And, these errors while running some simple test with ./script/console is giving me a headache: ./script/console Loading development environment. >> r = Reviewer.find_first => #<Reviewer:0x19d0a48 @attributes={"id"=>"1",

Hi! I am working on scorecard model and I have arrived at the regression equation. I have used logistic regression using R. My question is how do I validate this model? I do have hold out sample of 5000 customers. Please guide me. Problem is I had never used Logistic regression earlier neither I am used to credit scoring models. Thanks in advance Maithili

Hello all, Is there any R package that can develop a scorecard model for a binary target variable? More details: I want to create a scorecard based on the raw data I have. I have a binary target variable and a few numeric and character input variables. I want to bin the variables and assign a score to each of the bins. Each subject will be scored based on the bin it falls in for each

Apologies if this is in the archive - did look but couldn't find it. Does anyone have any experience of migrating from CommunigatePro to Dovecot? We currently run CGP 5.3.4, supporting a small system (20 or so users, one domain). We've been using it for years, and have a mixed bag of MailDir and mbox folders accessed via IMAP clients. Some users have large mail accounts (15GB total).

Ok, totally no reason why I''m getting an error in this model update and no other. HELP! CONTROLLER: # GET /employees/1/edit def edit @employee = Employees.find(params[:id]) end VIEW: <h1>Edit Employee</h1> <div id="main-sub"> <%= error_messages_for :employees %> <% form_for(@employee) do |f| %> <table width="600"

Hi Everybody! I must start with a declaration that I am a sparse user of R. I am creating a credit scorecard using a dataset which has a variable depicting actual credit history (good/bad) and 41 other variables of yes/no type. The procedure I am asked to follow is to use a penalized logistic procedure for variable selection. I have located the package "glmnet" which gives the complete

Dear R - help, I am working on the Credit scorecard model. I am using the Logistic regression to arrive at the regression coefficients model. I want to use the Hosmer - Lemeshow test . In order to understand the use of R - language, I had referred the following URL       http://www.stat.sc.edu/~hitchcock/diseaseoutbreakRexample704.txt The related data 'diseaseoutbreak' is available

HI everyone, require some help! cannot figure out this error and how to fix it! Showing user/index.html.erb where line #59 raised: You have a nil object when you didn''t expect it! The error occurred while evaluating nil.to_sym Extracted source (around line #59): 56: <% end %> 57: </ol> 58: 59: <div id="hub">Blog: <%= link_to "(manage)",

Hi, is there an easy way to get the calculated weights in a regression equation? for e.g. if my model has 2 variables 1 and 2 with coefficient .05 and .6 how can I get the computed values for a test dataset for each coefficient? data var1,var2 10,100 so I want to get .5, 60 back in a vector. This is a one row example but I would want to get a matrix of multiplied out coefficients

Hi all, I am trying to upgrade my rails 2 app to 3 and am getting this error when trying to login: NoMethodError in AuthenticateController#authenticate undefined method `to_sym'' for nil:NilClass The stack trace is: activerecord (3.2.2) lib/active_record/validations/uniqueness.rb:26:in `validate_each'' activemodel (3.2.2) lib/active_model/validator.rb:153:in

Hi folks. I have a very small problem which is probably very simple. But I''ve scoured the api and the rails book with no luck. I''m trying to get information about the database definition out of active record. When I go into console and say ActiveRecord::Base.connection I get a MysqlAdapter object, with an instance variable called @config that''s a hash containing all

Hello, I''m completely new to Rspec testing and I''m finding it very difficult to mock specific objects. In this test, I have a before block setup as such: [code] before do setup_controller_for_warden controller.session[:operation_id] = 1 @operator = Factory :operator sign_in :operator, @operator @persist_herd = Herd.new

Hi, Because I want to create several draggable elements in a list, I''d like to do the following: <script type="text/javascript"> <%- elements.each do |element| -%> <%= draggable_element_js("element_#{element.id}".to_sym, :revert => true) %> <%- end -%> </script> However, if you''d try this in your app, you''ll

On 16 Apr 2009, at 11:22, Joaquin Rivera Padron wrote: > at the moment I do it this way, hiding the complexity out of the > steps: > > Then /^I should see the people search form$/ do > people_search_form_exists > end > > Then /^I should not see the people search form$/ do > people_search_form_exists "not" > end > > and then the method: > >

I have the following two methods: def ProductFile::find_images(mode, prod_id) # convert to symbol in case it is not (most commonly it may be a String) mode = mode.to_sym case mode when :all, :first ProductFile::find(mode, :conditions => ["product_id = ? AND file_type LIKE ?", prod_id, "image%"]) end end def ProductFile::find_documents(mode,

Hello: I am developing a web application to book machines for an event. so I have an event model class Event < ActiveRecord::Base has_many :datetimes ... end and a datetime model class Datetime < ActiveRecord::Base belongs_to :event ... end I have developed a view with the event information and information for the datetimes. and in the event_controller when I capture a datetime I

Hello, I''m using find_with_ferret to search multiple models and it works great. The trouble is I need to filter the results using :include and :conditions. I get two errors depending on the syntax I use in the search. Reading the source, I see the retrieve_records method seems to filter the :include and :conditions so that they only apply to the relevant model when searching

Hey, campineros. And many good handshakes to zimbatm for getting some patches applied. So, yeah, I''d really like to get rid of any serious dependancies with this 1.6 release. Anything that''s not in stdlib has to go. Of course, camping-omnibus will still assume the whole ActiveRecord, Markaby, Mongrel setup that''s in the history books. Metaid can be removed and

Hi, Are the active database.yaml attributes for the current environment (dev, prod, test) available inside a controler ? adapter, host, db, socks, etc. AFIK Class#connection don''t give back theses infos. Thanks

I''ve found these two snippets of code useful and would love some feedback. first, .should_have_valid_associations usage: context "A new Product" do specify "should have valid associations" do @product.should_have_valid_associations end end code: (thanks to Wilson/Defiler for converting to rspec) module Spec module Expectations module Should