search for: themodel

...lookups/CollectionType/lookups #lookups/Gender/lookups map.resources :lookups, :path_prefix => ''lookups/:mdl'' ex Lookup Controller class LookupsController < ApplicationController # GET /lookup # GET /lookup.xml before_filter :setup_tables def index @lookups = @theModel.find(:all) respond_to do |format| format.html # index.html.erb format.xml { render :xml => @lookups } end end # GET /lookup/1 # GET /lookup/1.xml def show @lookup = @theModel.find(params[:id]) respond_to do |format| format.html # show.html.erb...

...rima I found arima model for a data set: x={x1,x2,x3,...,x(t)} arima_model = arima(x,order=c(1,0,1)) I am forecasting the next N lags using predict: arima_pred = predict(arima_model,n.ahead = N, se.fit=T) If I have one more point in my series, let's say x(t+1). I do not want to recalibrate themodel, I just want to forecast the next N-1 lags using the same model for x={x1,x2,...x(t)} but without recalibrate arima. How to do it using arima + predict.Arima ? My problem is that I am trying to fit arima models by brute force ( trying lots of combinations for p and q and chosing the best model b...

...e tried to change the na.action with no success (na.pass, na.fail, na.exclude... all give the same error message) I have also tried to follow the approach suggested by Charles Sharpsteen (http://www.mail-archive.com/r-help@r-project.org/msg74759.html) with similar results. The code is as follows: theModels <- by( theTestLineal, list( theTestLineal$ids, zongTestLineal$variable), function( dataSlice ){ linMod <- lm( value ~ seqMonth, data = dataSlice ) # Slope and intercept may be recovered from the output of the coef() function: intercept <- coef( linMod )[1] slope <- coef( linMod )[2]...

What''s the best idion when you need to present the user a single form, whose data is loaded into several models? Issues: * How to display the errors together * How do you handle one model being valid but not the other * How do you do validations if one model''s validity depends on the other (I guess transactions could be used to handle #2 and #3...) -- Posted via

Dear useR's, I was comparing results for a logistic regression model between different library's. themodel formula is arranged as follows: response ~ (intercept) + value + group OR: glm( response ~ (intercept) + value + group , family=binomial(link='logit')) lrm( response ~ (intercept) + value + group ) ROC( from = response ~ (intercept) + value + group , plot='ROC') the...

Hello fellow RSpec users. Before you all start warming up your flame throwers please let me explain my Subject line. I''ve been working over 4 months on a large Rails project with a few other developers. Test coverage was spotty at best, though they *were* RSpec tests. One of the other developers and I had started adding more tests, mostly controller tests using the methodology