similar to: seed data

Hi Guys, I would like to weight column entries in a data frame by the population of each state. For example, here is some data: state statenum year income popul ALABAMA 1 1 9.703193 3973.00 ALABAMA 1 2 9.745950 3992.00 ALABAMA 1 3 9.762092 4015.00 ALASKA 2 1 10.221640 532.00 ALASKA 2 2 10.169600

I have an address model with country_id and province_id fields There is also a full_address method that returns an address that is in a format that the google maps api will be able to return a long-lat coords. Within the full_address method there is a call to obtain the province/state and country name. --------- def full_address ... full_address = [city, self.province.name,

Hi, I've got a suggestion for adding something to Markdown's syntax. I'm new to the list, so I don't know if this is likely to be received well - I'm aware that it's not all that common (yet) to want to do something like this, and I don't know where everyone here stands on if or how to make markup more meaningful. I'd like to generate some microformated

Hello, I have a form that should be a POST method, but Rails insist to put a hidden field "_method" that has the value "put" does anyone knows why? Thanks, David Sousa Controller: ------------------------------- def new @user = @current_user end ------------------------------------------- View: ------------------------------------- <% semantic_form_for @user,

Hi: I'm sure this is a very easy problem. I've consulted Data Manipulation With R and the R Book and can't find an answer. Sample list of data frames looks as follows: .xx<-list(df<-data.frame(Var1=rep('Alabama', 400), Var2=rep(c(2004, 2005, 2006, 2007), 400)), df2<-data.frame(Var1=rep('Tennessee', 400), Var2=rep(c(2004,2005,2006,2007), 400)),

Hi friends! I''m relatively new with Rails and I''m struggling for a long time with this problem (it should have a pattern solution but until now I didn''t find it): I have the following models: Institution, City, State and Country. class Country < ActiveRecord::Base has_many :states has_many :cities, :through => :states end # == Schema Information # Table

Hi, I would like to make a plot of the US states (or lower 48) that are colored based upon a percentage change column. Ideally, it would gradually be more blue the larger the positive change, and more red the more negative is the change. The data I have looks like: State Percent.Change 1 Alabama 0.004040547 2 Alaska -0.000202211 3 Arizona -0.002524567 4 Arkansas

Hi to all, i have this snip i want to apply style to this combo but there is no effect help....... <%= collection_select(:customer,:country_id, @countries,:id, :country, html_options={ "style" => "width:110px" },:onchange => ''updateState('''');'',:id =>''country_id'' )%> Thanks, -- Posted via

I can plot each county of the contiguous 48 states or all of them using variations of map('county', region=c('wisconsin' . . . .) in the maps package. I was wondering whether similar data was available for Alaska and Hawaii? I was also wondering if there was a database that listed FIPS codes for the counties in Alaska and Hawaii. Similar to 'county.fips'. Thank

Hi, I am running the RODBC examples form the help guide. I am trying to UPDATE a table in an Access data base but I am having an error. library(RODBC) library(termstrc) path = getwd() setwd(getwd()) dbName = "data.mdb" pathdbname = paste(path,"/",dbName,sep="") accesChannel = odbcConnectAccess(pathdbname, uid = "", pwd = "")

Hi folks, I'm just learning how to use maps. As an initial foray, I'm mapping the states that have "duty to retreat" (blue) and "stand your ground" (red) self-defense standards. Here is my extremely naive script: dtr <- c('alabama', 'arizona', 'conneticut', 'delaware', 'dist of columbia' , 'hawaii',

I am very new to ROR. (Ruby 1.8.7, rails 2.1.1, rack 0.8.7, mysql 5.1.41) I has my_app/lib/migration_helpers.rb file: module MigrationHelpers def self.foreign_key(from_table, from_column, to_table) constraint_name = "fk_#{from_table}_#{to_table}" execute %{alter table #{from_table} add constraint #{constraint_name} foreign key (#{from_column})

Hi, I request help with the following: INPUT: A data frame where column "Lower" is a character containing numeric values (different count or occurrences of numeric values in each row, mostly 2) > dput(dd) structure(list(State = c("Alabama", "Alaska", "Arizona", "Arkansas", "California"), Lower = c("R 72?33",

%=>% would have precendence ('order of operations') problems also. A + B %=>% C is equivalent to A + ( B %=>% C) and I don't think that is what you want. as.list(quote(A + B %=>% C)) shows the first branch in the parse tree. The following function, str.language, shows the entire parse tree, as in > str.language(quote(A + B %=>% C)) `quote(A + B %=>%

Hi all I tried and tried and tried, but I still fail in creating a form with proper validation and stuff for foreign keys... So I''d really like to get some help here. I''m creating a booking site for DJ''s, and for every booking one can choose one of different countries: class Booking < ActiveRecord::Base validates_presence_of :country_id

I have a specific question and a general question. Specific Question: I want to do an analysis on a data frame by 2 or more class variables (i.e., use 2 or more columns in a dataframe to do statistical classing). Coming from SAS, I'm used to being able to take a data set and have the output of the analysis in a dataset for further manipulation. I have a data set with vote totals, with one

I noticed there is a country_select. Is there anything like us_state_select maybe? More specifically - I''m wondering if I manually have to populate an array with all the U.S. state abbreviations so users can select which state they live in while entering their mailing address. -- Posted via http://www.ruby-forum.com/.

Hi all, Although I''m experienced with programming I''m a beginner with ruby, RoR and MVC So I follow examples from books and so on and all is ok. I can make a model who is a class and who match to a table in my database and then I generate pretty forms on a webpage. I would like to know how I can do to make forms who interact with more than one table. For an example lets

I have two models bank and country. User should only associate a Bank with a country id present in the country table and I put validates presence of country to enforce it but i get error mysql2::Error: Unknown column ''countries.bank_id'' in ''where clause'': SELECT `countries`.* FROM `countries` WHERE `countries`.`bank_id` = 17 LIMIT 1 when updating the bank

Hello, Is there any possibility in R to see the body of the non-visible function, for example princomp? If I do : > methods(princomp) so, I get that princomp.default and princomp.formula are non-visible functions and body(princomp.default) doesnt show it. In particular, I guess I have a very nave question Id like to see how scores calculation is implemented in the function princomp.