similar to: filling data into objects

I have two objects that are associated in the following way: class Class1 < ApplicationController has_and_belongs_to_many :class2s has_and_belongs_to_many :otherClasses end class Class2 < ApplicationController has_and_belongs_to_many :class1s has_and_bleongs_to_many :otherClasses end Now, when I run the following query, @objects = Class1.find(:all, :conditions

Hi, I'm trying to understand R's object oriented abilities. I have read (in a very recent email to r-help) that R's methods package does not support private methods. However, I also looked at the source for the function "is": > is function (object, class2) { cl <- .class1(object) if (missing(class2)) return(extends(cl)) if (.identC(cl, class2)

Dear R-users! I am using R1.2.0 under Windows NT4.0, and have data of the following form: > #simple example of data structure: > x <- data.frame(group=LETTERS[1:3], class1=1:3, class2=4:6) > x group class1 class2 1 A 1 4 2 B 2 5 3 C 3 6 I would like to convert this to a data.frame y of the following form: > y group class counts 1

Hi, Let''s say: class Class2 << ActiveRecord belongs_to: class1 end class Class1 << ActiveRecord has_many :class2s def get_max_class2 ?how to get the max of class2 list ? end end I would like to know how I have to write the get_max_class2 method in order to have the max value of the class2 list ? I would like to call this method this way: class2_max

Hi, I'm new to R, and I have searched helpfiles and this forum on my 2 questions. Hope you guys can help me out! :-) Many thanks in advance! Cheers, Lars Q1: I imported a csv file with columnames subject and class. There are about 1000 different classes... It looks like this: subject1, class1 subject1, class2 subject2, class1 subject2, class3 ... subject999, class1 subject999, class2

Hi, Does this code should works ? elm.getElementsBySelector(''UL.class1 > LI.class2''); I have an error caused by "UL.class1 > LI.class2" - Does CSS Selector ">" works ? - What is the exact ? may be "UL.class1>LI.class2" Regards, -- Jean-Philippe Encausse - R&D Jalios SA Jp [at] encausse.net - http://www.encausse.com -

Hello, I have a question concerning "setClassUnion". I'm working with R 2.0.0 Patched (2004-10-06) on windows 2000. I tried to use "setClassUnion" in a package I am currently working on. The situation is similar to the following example: The DESCRIPTION file has entries: Depends: R (>= 2.0.0), methods Imports: methods LazyLoad: yes The NAMESPACE file has

Hello, I have a question concerning "setClassUnion". I'm working with R 2.0.0 Patched (2004-10-06) on windows 2000. I tried to use "setClassUnion" in a package I am currently working on. The situation is similar to the following example: The DESCRIPTION file has entries: Depends: R (>= 2.0.0), methods Imports: methods LazyLoad: yes The NAMESPACE file has

Hello, I don't manage to see if you have already focussed on this point in some previous messages so I post my question: I have a little problem with the S4 style of programming. I tried to formalize my question: please consider the following example that you can run I think: #------------------ setClass("my.class1", representation( my.list =

Hi, Please advice on what type of graph can be used to display the following data set. I have the following: Name Class a Class 1 a Class4 b Class2 b Class1 d Class3 d Class5 e Class4 e Class2 So each entry in name can belong to more than one class. I want to represent the data as to see where

i  want to print in the console and to have an excel file like this no_GWP                NbOfPolicyClass1[0-1000]     NbOfPolicyClass2[1000-3000]        NbOfPolicyClass3[> 3000] No_GWPMax=8    NbpolicyClass1=5                   NbpolicyClass2=4                            NbpolicyClass3 =3              i have do it like this:!!! data1 <-

I keep expecting R to have something analogous to the =count function in Excel, but I can't find anything. I simply want to count the data for a given category. I've been using the ddply() function in the plyr package to summarize means and st dev of my data, with this code: ddply(NZ_Conifers,.(ElevCat, DataSource, SizeClass), summarise, avgDensity=mean(Density),

> To find which header files could be removed it scanned the file for "#include" lines and tried to remove them one by one (checking if the file still compiles after the removal). When there were no more include lines to remove, we verified the change with ninja+ninja check. It looks like this makes us rely heavily on transitive header includes -- is that right? Specifically what I

I has several model objects that flow down like a tree: Class1 has_many Class2 Class2 has_many Class3 and so on. when are the child records actually created? If I do: c1 = Class1.find(:all) are the child objects (C2s below) created then or not until i do something like: c2s = c1.C2s while iterating through the c1s? If the form, that''s cool, no problem, but If I''ve got

HI I want to do a table with R (in the console) GWP_Max NumberOfPolicies No_GWPMax 8 [0-1000] 4 [1000-3000] 3 [> 3000] 5 i begin by calculate the number of policies in each class :  Data1 <- read.csv2("c:/Total1.csv", sep=",") > Data2 <- read.csv2("c:/GWPMax1.csv",sep=",")[1:20,1:2] > M <- merge(Data1,Data2, by.x =

Hi, I wanted to make more than one side color bar. For example, I can make one side color bar (col1) with the following code: ----------------------------------- library(gplots) mat <- matrix(sample(1:100,40),nrow=5) class1 <- c(rep(0,4),rep(1,4)) col1 <- ifelse(class1 == 0,"blue","red") class2 <- c(rep(1,3),rep(2,5)) col2 <- ifelse(class2 ==

----- Message transféré ---- De : Inchallah Yarab <inchallahyarab@yahoo.fr> À : r-help@r-project.org Envoyé le : Mardi, 18 Août 2009, 16h26mn 20s Objet : create a table in the console!! HI I want to do a table with R (in the console) GWP_Max NumberOfPolicies No_GWPMax 8 [0-1000] 4 [1000-3000] 3 [> 3000] 5 i begin by calculate the number of policies in each class :  Data1 <-

Hello, Below is what I got running the examples from `setClass'. Could somebody please help explain why the last `setIs' call is returning the warning and whether this is expected? R> setClass("track", + representation(x="numeric", y="numeric")) [1] "track" R> setClass("trackCurve", +

Hey all, IWYU maintainer here. I wanted to make a small observation. Surprisingly, IWYU will most often *add* includes to a reasonably well-factored codebase, and this ties into Chris' comment: > Beyond that though, this seems like obvious > goodness to reduce coupling in the codebase. Just blindly removing includes will probably increase coupling, not reduce it, because it optimizes

Hi, When starting an embedded R I encounter the following issue under certain conditions: ``` Error: package or namespace load failed for ?utils? in if (.identC(class1, class2) || .identC(class2, "ANY")) TRUE else {: missing value where TRUE/FALSE needed ``` (more such errors for grDevices, graphics, and stats) And in the end: ``` Warning messages: 1: package ?utils? in