search for: currenc

Hello, Have a question related scope definition. I need to define a scope based on related model attribute values like this. class Product < ActiveRecord::Base belongs_to :currency scope :with_currency, lambda { |currency| unless currency.to_s.upcase == ''ALL'' # here I need to define a scope that would test for currency.char_code to match a passed value # something like.. This is where I need help where("currency.char_code = ?", currenc...

I''m thinking of experimenting with some currency conversion. However, I''d like the conversions to be in synch with the current rates. Anyone know (and this maybe out in left field) if there is some online (perhaps xml) or other data stream I can connect with in my code to output values based on user selection ? TIA Stuart

Has anyone been able to make direct API calls to PayPal in currencies other than USD? I get an error message "The currency code submitted is not supported. Check the currency code and try again." I''m using the PayPal plugin for Rails. I can successfully transact in USD, but not AUD (Australian Dollars). Cheers, Dan

Dear R forum, (Pl note this is not a finance problem) I have two data.frames as currency_df = data.frame(current_date = c("3/4/2013", "3/4/2013", "3/4/2013", "3/4/2013"), issue_date = c("27/11/2012", "9/12/2012", "14/01/2013", "28/02/2013"), maturity_date = c("27/04/2013", "3/5/2013", &...

...e mail through my cell, only to realize today about the way mail has been transmitted. I am again sending my complete mail through regular channel and sincerely apologize for the inconvenience caused. ## Here is my actual mail Dear R forum helpers, I have following data trans <- data.frame(currency = c("EURO", "USD", "USD", "GBP", "USD", "AUD"), position_amt = c(10000, 25000, 20000, 15000, 22000, 30000)) date <- c("12/31/2010", "12/30/2010", "12/29/2010", "12/28/2010", "12/27/2010&quo...

I was on vacation the last week and wrote some code to run a 500-day correlation between the Nasdaq tracking stock (QQQ) and 191 currency pairs for 500 days. The initial run took 9 hours(!) and I'd like to make it faster. So, I'm including my code below, in hopes that somebody will be able to figure out how to make it faster, either through parallelisation, or by making changes. I've marked the places where Rprof showed...

Dear sir, I am extremely sorry for messing up the logic asking for help w.r.t. my earlier mails   I have tried to explain below what I am looking for.     I have a database (say, currency_rates) storing datewise currency exchange rates with some base currency XYZ.   currency_rates <- data.frame(date = c("12/31/2010", "12/30/2010", "12/29/2010", "12/28/2010", "12/27/2010","12/24/2010", "12/23/2010", "12/...

...;'m trying to setup a Model to use this library, but can''t seem to wrap my head around how it is exactly supposed to work. My Model (Foo) looks like: =============== composed_of :commission, :class_name => "Money", :mapping => [ %w(commission_cents cents), %w(commission_currency currency) ] Yet, in script/console, I''m unable to get the correct behaviour (at least I think), from the library. =============== >> t = Foo.new(:commission => 34) NoMethodError: undefined method `cents'' for 34:Fixnum from (eval):3:in `commission='' I&...

...", "EURO_2m", "EURO_2m", "EURO_2m"), rates = c(2.05, 2.07, 2.06, 2.06, 2.22, 2.24, 2.23, 2.23, 2.31, 2.33, 2.33, 2.31, 1.06, 1.08, 1.08, 1.08, 1.21, 1.21, 1.23, 1.21, 1.41, 1.39, 1.39, 1.37, 1.82, 1.82, 1.81, 1.80, 1.98, 1.98, 1.97, 1.97, 2.1, 2.09, 2.09, 2.11)) currency = c("EURO", "GBP", "USD") tenor = c("1w", "2w", "1m", "2m", "3m") # _________________________________________ > df    rate_name rates    rate_name rates 1     USD_1w  2.05 2     USD_1w  2.07 3     USD_1w  2.06 4  ...

Here is my model: class Account < ActiveRecord::Base has_many :users, :dependent => :destroy has_many :bus belongs_to :currency has_many :mylogs, :dependent => :destroy has_many :batchuserdefines, :dependent => :destroy has_many :materialuserdefines, :dependent => :destroy has_many :materials has_many :inventories has_many :batchs has_many :courses has_many :projects has_many :initstocks,:depende...

Dear R forum I have a data.frame df = data.frame(currency_type = c("EURO_o_n", "EURO_o_n", "EURO_1w", "EURO_1w", "USD_o_n", "USD_o_n", "USD_1w", "USD_1w"), rates = c(0.47, 0.475, 0.461, 0.464, 1.21, 1.19, 1.41, 1.43))   currency_type     rates 1      EURO_o_n   0.470 2     ...

Hi all, Apologies in advance if I got this one wrong, I''m still just a newbie ;-) Going through the Apple ADC RoR tutorial it suddenly occurred to me that the ''number_to_currency()'' helper method was not DRY streamlined. Scenario:: The "number_to_currency()" methods options hash works great when I need to dynamically display different currencies when I call "number_to_currency()", as long a I have an idea of what the currency should be e...

...ctive solution you had offered. Sorry once again sir and will certainly try to be very careful in future. Thanks again and have a great weekend sir. Regards Amelia --- On Fri, 7/1/11, Petr PIKAL <petr.pikal@precheza.cz> wrote: From: Petr PIKAL <petr.pikal@precheza.cz> Subject: Odp: Currency return calculations To: "Amelia Vettori" <amelia_vettori@yahoo.co.nz> Cc: r-help@r-project.org Received: Friday, 7 January, 2011, 12:59 PM Hi What is wrong with my suggestion then. > rate1       USD    GBP  EURO   CHF    AUD 1  112.05 171.52 42.71 41.50 109.55 2  112.90 168....

Dear all Is there any R function that would perform currency conversion using up-to-date exchange rates? I would be looking for a function that allows to download recent exchange rates (say, from Yahoo!) and then use these in converting currencies (say, USD to EUR). I am not sure whether r-sig-finance would be more appropriate, but the (off-)topic feels ge...

Hi, are there any good charting and analysis tools for use with currencies, stocks, etc. in R? I have some tools to download currency data from the NYFRB using python and XML. Can we get and parse an XML download using R? Can we have interaction in R plots? Does anyone use R for back-testing trading strategies? Are there any forums for discussion of using R for th...

What data type is best for storing currency? I''m trying to come up with a reliable cross-database solution for rails that is not too complicated. Since I''m going to have currency fields all over the place, I''m not so sure that using two integer fields for each amount would qualify as uncomplicated. I''d...

Hi Let''s say we have model Foo. Each Foo instance can have several bars. Those bars are primitive, so they shouldn''t be models. For example, Foo might be a type of convention, and the bars might be years the convention was held in. Naively, we would have a conventions_years date, and put: has_many :years inside class Convention. But then we''d get an error, since for

I'm struggling to find any help on this seemingly simple question - how does one read data with percentage (%) or currency (?,$ etc.) signs? When I try to read a data file which has any of those symbols in the data fields, they are read as characters rather than values. Is there a function or library which can deal with such values? As an example, I use this sample from one of chinna's questions: Store Year Reve...

Hello, After reading help file, various threads on this board, and other online tutorials, I've attempted to use gsub (using Perl-like syntax) to change a currency string into something that can be converted to numeric type using only one regular expression.  Can anybody point out my error?  Note that >  x <- "\"$ 1,200,300,400.50\"" Tried the following in an attempt to arrive at "1200300400.50" >  gsub("(^[\\...

Hi, I wanted to download some currency data using "quantmod" package, however got following error : > getSymbols('USD/GBP',src='yahoo') Error in download.file(paste(yahoo.URL, "s=", Symbols.name, "&a=", from.m, : cannot open URL 'http://chart.yahoo.com/table.csv?s=USD/GBP&am...