Displaying 20 results from an estimated 3000 matches similar to: "How is this done with REST (blinksale account)?"
2008 Feb 08
1
Wildcard Subdomains & OS X Local Development
I''m using the simple account_location plugin to have virtual
subdomains on my app (account.myapp.com - see Basecamp, Blinksale,
etc.)
How do you go about setting up your OS X system to play nice? I''d like
to use Apache & Mongrel.
Notes: The only thing I''ve able to accomplish is hardcoding the
subdomains directly in my hosts file. I can get
2008 May 26
5
Noob SASS error (permission denied)
I just created the sass directory in my stylesheets directory and
when
I reload my page I get this error:
Status: 500 Internal Server Error
Permission denied - /Users/Justin/kicksite/trunk/public/
stylesheets/
application.css
/usr/local/lib/ruby/gems/1.8/gems/haml-2.0.0/lib/sass/plugin.rb:
72:in `initialize''
/usr/local/lib/ruby/gems/1.8/gems/haml-2.0.0/lib/sass/plugin.rb:
72:in
2013 Jun 07
4
matched samples, dataframe, panel data
I R-helpers
#I have a data panel of thousands of firms, by year and industry and
#one dummy variable that separates the firms in two categories: 1 if the firm have an auditor; 0 if not
#and another variable the represents the firm dimension (total assets in thousand of euros)
#I need to create two separated samples with the same number os firms where
#one firm in the first have a corresponding
2005 Dec 29
9
Single Table Inheritance
Hi all,
Quick question for STI. With the following setup:
class Company < AR::Base; end
class Firm < Company; end
Why does Firm.find(:all) return all Companies, not just those that have
type==''Firm''?
--
Alex
2011 May 19
2
balanced panel data
I have a dataframe with many firm-year observations and many variables.
Not all firms have information for all the years.
I want another dataframe with only those firms that have information all
years.
This is, I want a balanced panel data, but with the maximum number of years.
In my reprocucible example I want to keep firms 1,2 and 3 (period 2000 to
2004).
I need your help to create a
2012 Feb 13
11
stale records with integration testing?
Hi,
I was writing an integration test for my user signup form (with
capybara), and found that my test was failing due to a validation error:
"email is already taken". I''m a bit confused because I thought when I
run "rspec spec/some_spec.rb", the test database would be wiped clear?
Is that not the case?
Patrick J. Collins
http://collinatorstudios.com
2005 Sep 05
4
Dummy variables model
Hi, all!
Anyone know an easy way to specify the following model.
Panel dataset, with stock through time, by firm.
I want to run a model of y on a bunch of explanatory variables, and one
dummy for each firm, which is 1 for observations that come from firm i,
and 0 everywhere else. I have over 200 firms (and a factor variable that
contains a firm identifier).
Any easy way of going about
2009 Jul 20
9
rake error
When I run rake test:units I get this error:
292 tests, 350 assertions, 2 failures, 13 errors
rake aborted!
Command failed with status (1): [/usr/local/bin/ruby -I"lib:test" "/
usr/loc...]
This error just showed up yesterday --- I have no idea how I caused
it. Here is my gem list in case that helps:
actionmailer (2.3.2, 2.2.2)
actionpack (2.3.2, 2.2.2)
activerecord (2.3.2, 2.2.2)
2011 Oct 02
2
subset in dataframes
I need help in subseting a dataframe:
data1<-data.frame(year=c(2001,2002,2003,2004,2001,2002,2003,2004,
2001,2002,2003,2004,2001,2002,2003,2004),
firm=c(1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4),x=c(11,22,-32,25,-26,47,85,98,
101,14,87,56,12,43,67,54),
y=c(110,220,302,250,260,470,850,980,1010,140,870,560,120,430,670,540))
data1
I want to keep the firms where all x>0 (where there are
2009 May 10
1
Select the rows in a dataframe that matches a criteria in another dataframe
Hi everyone! Thank you for the help you have been given to
me, and here I'm with another problem with my dataframes:
I have two dataframes (with much more observations), like
these:
Dataframe1
Firm Year cash
500400200 2007 100
500400200 2006 200
500400200 2005 400
500400300 2007 300
500400300 2006 240
500400300 2005 120
500400400
2004 Jun 17
2
Question on lists and vectors of lists
I have an elementary programming question. Could someone please point
me in the right direction?
I have a function which will run for thousands of companies. At each
invocation, it returns 2 numbers. I plan to do something like:
think_one_firm <- function(filename) {
# Do stuff
return(list(x=x,y=y))
}
So for each of the firms in my dataset, I will call
2009 Oct 07
2
"Overriding" association build methods
Hey everyone
I have (in a nutshell) two models: Customer and Order. Customer
has_many Orders and Order belongs_to Customer. The Order model
contains fields such as name, address and phone that mirror the
associated Customer''s fields at the time the order was placed. The
reason for this is that if the customer changes their details then the
order contains the details that were current
2010 Jul 22
4
Drop firms in unbalanced panel if not more than 5 observations in consecutive years for all variables
Dear R-user,
a few weeks ago I consulted the list-serve with a similar question.
However, my task changed a little but sufficiently to get lost again. So
I would appreciate any help on the following issue.
I use the plm package and work with firm-level data in a panel. I would
like to eliminate all firms that do not fulfill the requirement of
having an observation in every variable used for at
2010 Feb 11
6
Anyone know of a Rails POS (point-of-sale) app?
Open-source or commercial.
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2006 Jan 22
6
Making a markov transition matrix
Folks,
I am holding a dataset where firms are observed for a fixed (and
small) set of years. The data is in "long" format - one record for one
firm for one point in time. A state variable is observed (a factor).
I wish to make a markov transition matrix about the time-series
evolution of that state variable. The code below does this. But it's
hardcoded to the specific years that I
2011 Sep 07
4
rspec testing inheritance
Hello,
Is there any way to test model inheritance in spec?
something like..
it { ChildModel.should < ParentModel }
thanks.
2010 Jan 22
2
sorted reshaping?
dear R wizards:? I am wrestling with reshape.? I have a long data set
that I want to convert into a wide data set, in which rows are firms
and columns are years.
> summary(rin)
firm fyear sim1
Min. :1004.00 Min. :1964.0 Min. : -1.00000
1st Qu.:1010.00 1st Qu.:1979.0 1st Qu.: -0.14334
Median :1016.00 Median :1986.0 Median : 0.00116
Mean
2007 May 28
5
validates_uniqueness_of does not pass unit test
I am doing some very very basic unit testing. If I take away the
uniqueness validation, the tests pass. Could this be a bug in Edge
Rails?
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2004 Oct 03
2
Computing and testing transition probabilities?
Folks, I have a situation with many firms, observed for many years
(but it's not panel data, so every now and then data for a firm just
goes missing).
Let me show you an example. There are 3 firms "a", "b" and "c". There
are 3 years: 1981, 1982 and 1983. There's a factor f which takes
values 1, 2 or 3.
set.seed(5)
D = data.frame(
names=c("a",
2005 Feb 17
1
Multiple Fstats/breakpoints test using Panel data
Hi,
I have recently use the strucchange package in R with a single time series observation. I found it extremely useful in the testing of change points.
Now, I am thinking of using the strucchange package with panel data (about 500 firms, with 73 monthly time series observations each). For each firm, I have to conduct the Fstats and breakpoints tests. Based on the test of each firm, I have to