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Taking the Grunfeld data, which is built-in in R, for example, (1)How can I construct a dataset (or dataframe) that consists of the data of all firms in 1951? (2)How can I calculate the average capital in each form over the period 1951-1954? What I can imagine is to categorize the data by firm, and then select the data between 1951 and 1954 for each firm, but how can I do it? Thanks, Miao

{{Version 0.75 of Ruby In Steel}} is now available for download. This release includes significantly enhanced colour coding and collapsing for both Ruby and Rails (RHTML) files and provides support for debugging support for Ruby In Rails. Previous versions only provided debugging for standard Ruby projects. The Ruby In Steel IDE is hosted within Microsoft?s Visual Studio 2005 (Standard edition or

Dear friends, I have written the following lines in R console wich already exist in pdf file systemfit: data( "GrunfeldGreene" ) library( "plm" ) GGPanel <- plm.data( GrunfeldGreene, c( "firm", "year" ) ) greeneSur <- systemfit( invest ~ value + capital, method = "SUR", + data = GGPanel ) greenSur I have obtained the following incomplete

Bugs item #17013, was opened at 2008-01-11 06:00 You can respond by visiting: http://rubyforge.org/tracker/?func=detail&atid=218&aid=17013&group_id=35 Category: Missing API call Group: None Status: Open Resolution: None Priority: 3 Submitted By: Daniel Brumbaugh Keeney (db-keen) Assigned to: Nobody (None) Summary: Notebook#get_current_page Initial Comment: Notebook#get_current_page

Dear all, I want to draw ticks on the 3rd and 4th row of a lattice. How do I do this ? In my search of the help, I discovered a parameter alternating,which kind of says where the ticks will be but does not suffice for me. I am running this command : - barchart(X03/1000~time|Company, data=df1[which(df1$time!=1),], horiz=F,

Those of you using Visual Studio 2005 may be interested in the latest release of the Steel IDE for programming Ruby. The latest update includes a variety of tools aimed at Rails development - for example: integrated project management, script-running dialogs (Controller, Scaffold, Model, Gems etc.), rhtml support (colour and collapse), database setup wizards, import existing Rails

*Top 10 Buildings of the world<http://www.awpedia.com/newstuff/highest-building/> Tuffest, largest, highest, underwater and underground buildings * <http://www.awpedia.com/newstuff/highest-building/> [image: Top 10 Records] <http://www.awpedia.com/newstuff/highest-building/> World Most Tuff Building Earthquake Proove buildings American Steel Buildings Allied steel building The

*Top 10 Buildings of the world <http://mega-structures.blogspot.com/>* <http://mega-structures.blogspot.com/> [image: Top 10 Records] <http://mega-structures.blogspot.com/> World Most Tuff Building Earthquake Proove buildings American Steel Buildings Allied steel building The Star Cooling Tower *Top <http://mega-structures.blogspot.com/> 10

...which just ensures that there''s no Buffered IO Reading, and ensures that data being sent, has a Line Feed (0x0A) at the end, which shows that it''s the end of the packet the server or client is sending. Any questions, comments, suggestions, feel free to email me. L8ers, Mario Steele

After I ran my program through Rubyscript2exe, the Random.exe file that it created is causing the following error: D:\Ruby projects>random.exe C:\DOCUME~1\JEDELS~1\eee\eee.Random.exe.2\app\Random.rb:59: undefined method ''ru n'' for Wxruby2::App (NoMethodError) from C:\DOCUME~1\JEDELS~1\eee\eee.Random.exe.2\bootstrap.rb:77:in `load'' from

Hello, I''m completely newbie to wxRuby, in fact to Ruby language as well, but I''m completely in love with it!! I''m not a programmer, dunno maaaaaaaaany "technical things" but I''m doing my best. I Installed wxWidgets and wxRuby, the samples files run perfect, I was wondering... IS THERE ANY IDE FOR WXRUBY? something like REALbasic or Xcode Interface

The code below create an nxn upper triangular matrix of one's. I'm stuck on finding a more efficient vectorized way - Thanks. --Dale n <- 9 data <- matrix(data=NA, nrow=n, ncol=n) data for (i in 1:n) { data[,i] <- c(rep(1,i), rep(0,n-i)) } data

Hi I''d like to put out a 1.9.3 release perhaps later this week/weekend. If you have a chance to test the build and samples esp with latest rubygems, please do. There are still some bugs on the list, and samples to do, but this should address all the build/install probs that have come up. And it would be good to get some testing and feedback on some of the new classes. A note on the

Hi, I''m trying to compile wxruby-1.9.2. This is my first time using rake. All I get is the following: (in /bld/lib/wxruby-1.9.2) rake aborted! can''t convert nil into String /bld/lib/wxruby-1.9.2/rakefile:48 (See full trace by running task with --trace) And with --trace: (in /bld/lib/wxruby-1.9.2) rake aborted! can''t convert nil into

Hi R-Help! My question: I have lifetime/failure data of machines with different stress levels and i think an weibull/extreme value distribution would fit this data. So I did: model1 <- survreg(Surv(lfailure)~stress,data=steel,dist="extreme") (where lfailure=log(failure)) Now I would like to do a likelihood ratio test to test the hypothesis H0: location parameters of the

...me an Email off list, and I''ll establish an Email List for us to talk about with getting an IDE together. More programmers on a project definatly can help out. Make sure you use the email address that you want to receive the emails from the list on, when you email me. L8ers, Mario Steele

I would like to take a rails page and convert it to a pdf. I don''t want to have to generate the code myself for making the pdf, so it should obey css. What is the best tool for doing this? Does the tool use the standard css, or can I provide it alternative print-css? Thanks in advance, Jonathan Steel -- Posted via http://www.ruby-forum.com/. -- You received this message because you

hello i try use Wine in mandriva extreme 2.1 i got 2 game and i try emulate this two games 1 is steel fury i got something like this in terminal[/code][alex at localhost win_e]$ cd Steel\ Fury\ -\ Kharkov\ 1942 [alex at localhost Steel Fury - Kharkov 1942]$ wine starter.exe [alex at localhost Steel Fury - Kharkov 1942]$ fixme:mixer:ALSA_MixerInit No master control found on HDA ATI HDMI, disabling

Hi all, I just noticed that in ActiveRecord::ConnectionAdapters::Column.type_cast[1] (and type_cast_code[2]) the type casting for float columns simply does value.to_f, whereas all the others have a rescue or call out to a method, the default implementations of which have rescues or enough logic in that I don''t think they''d fail. Imagine the following: create_table :vehicle do

...This is the kind of thing I'm talking about: m = matrix(1:20, 3, 4) v = colSums(m) t(t(m) / v) ## <-- kinda ugly, ain't it? I thought of converting the column vector to a matrix: m / matrix(v, nrow = nrow(m), ncol = length(v), byrow = TRUE) But that seems even worse. Thanks! Rob Steele