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2011 May 23
1
MLDownloader 7.1 fails to download data from yahoo
Any pointers as to how to proceed with this would be most welcome! wine --version wine-1.3.19 lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 10.04.2 LTS Release: 10.04 Codename: lucid I used crossover to create a Win XP bottle and installed IE7 and then MLDownloader. There is a 15 day trial version available here:
2010 May 27
1
switch function
Dear group, Here is my df : trades <- structure(list(Trade.Status = c("DEL", "INS", "INS"), Instrument.Long.Name = c("SUGAR NO.11", "CORN", "CORN"), Delivery.Prompt.Date = c("Jul/10", "Jul/10", "Jul/10"), Buy.Sell..Cleared. = c("Sell&qu...
2008 Jun 11
1
Resourse route in namespace with prefix error
Ok so I have this route map.namespace :trades do |trades| trades.resources :buys, :path_prefix => ''/trades/:contract_id'' end I want the contract_id variable to filter a list of buys then I try to open this route http://localhost:3000/trades/1/buys I get a strange error: ActionController::RoutingError in Trades/buy...
2008 Mar 22
1
Geting names of variables
I wanted to create a list with the names of variables and their values. So I wrote the following function. add.to.list.names.vars.1 <- function(lnv, vnv) { i <- 1 while (i < length(vnv)) { z <- as.character(eval(substitute(quote(vnv[i+1])))[[2]][[i + 2]]) lnv[[vnv[i]]] <- list(Name = z, Value = vnv[i+1]) i <- i + 2 } lnv } It works, but it is very
2010 May 26
1
data frame manipulation change elements meeting criteria
Dear group, Here is my df : trade <- structure(list(Trade.Status = c("DEL", "INS", "INS"), Instrument.Long.Name = c("SUGAR NO.11", "CORN", "CORN"), Delivery.Prompt.Date = c("Jul/10", "Jul/10", "Jul/10"), Buy.Sell..Cleared. = c("Sell", "Buy", "Buy"), Volume = c(1L, 2L,
2012 Feb 14
2
R CMD SHLIB in Windows XP - No output at all
Hello all, I'm trying hard to make R CMD SHLIB work on Windows XP (32-bit) - please note that I don't have the admin rights on the computer. In terms of setup, I have followed the procedure : => installed Rtools 2.14 => changed my path : PATH=C:\Trading\R\RTools\bin;C:\Trading\R\RTools\MinGW\bin;C:\Trading\R\R-2.14.1\bin\i386;C:\WINDOWS\system32;%OTHER_PATHS% But when I try R CMD
2011 Jan 29
1
Basic Help with Zoo objects and trading days
All, I have been just recently working with zoo objects for trading systems. Can someone please help with these basic questions? Given a daily time series downloaded using get.hist.quote() from the tseries package, ie...... startDate= as.Date("2000-01-01") endDate= as.Date("2011-01-29") frequency= 'd' s= get.hist.quote('IWF', start= startDate, end=
2011 Jul 22
2
Picking returns from particular days of the month from a zoo object
Hello, I would like to implement a "turn-of-the-month' trading strategy in R. Given a daily series of stock market return data as a zoo object, the strategy would go long (buy) four trading days before the end of the month, and sell the third trading day of the following month. How can I select these days, particularly the fourth day before and the third day after the turn of the
2012 Nov 09
0
Chicago Based Trading Group Seeking Development Clerk
*Job Title: Trading Development Clerk Job Description: Assist development team with backtesting, debugging, creating, and deploying automated trading strategies. Clerk will work under a lead developer and several traders to provide support to traders in real time execution, in addition to the development staff with strategy creation, troubleshooting and deployment. The ideal candidate would be
2011 Sep 08
4
In Rails 3.1 Model.count() ignores :include - no outer join in generated SQL
...t only suggestion for workaround). As this looks like 3.1 regression that breaks existing 3.0.10 code I decided to post this here in addition. I''ve upgraded to Rails 3.1 (from 3.0.10), ran my test suite and found this issue: class Trade < ActiveRecord::Base has_many :transaction_trades ..... def Trade.do_something stale_trades = Trade.count(''transaction_trades.id'', :include => :transaction_trades, :group => ''trades.id'') :having => &quo...
2010 May 01
1
select subset of data according to date range
Dear R lists, Would anyone help me with setting data frames according to the date? X.RIC Date.G. Time.G. GMT.Offset Type Price Volume Time 1 QAN.AX 01-DEC-2008 00:00:28.611 11 Trade 2.28 105 2008-12-01 11:00:28.611 2 QAN.AX 01-DEC-2008 00:00:43.155 11 Trade 2.28 250 2008-12-01 11:00:43.155 3 QAN.AX 01-DEC-2008 00:01:06.677 11
2011 Sep 05
8
In Rails 3.1 Model.count() ignores :include - no outer join in generated SQL
Hello! Just upgraded to Rails 3.1, ran my test and found this issue: class Trade < ActiveRecord::Base has_many :transaction_trades ..... def Trade.do_something stale_trades = Trade.count(''transaction_trades.id'', :include => :transaction_trades, :group => ''trades.id'') :having => "coun...
2012 Feb 01
1
ggplot2(0.9.0): could not find function "=="
Hi, I have a question related to the newest version of ggplot2 (0.9.0). I just updated this morning and from CRAN it looks like the Mac version is the only one at 0.9.0 as of right now. http://cran.r-project.org/web/packages/ggplot2/index.html Anyway, I was in the midst of a project where I was trying to replicate "Back-to-back Bar Charts" in this blog post.
2005 May 08
1
"validation" on destroy
...them. My model consits of a Trade object, which represents either buying or selling some security. I need to require that at no point has a user sold more than he''s bought (no short selling). This is fantastically easy to accomplish when entering a new trade, and when modifying existing trades, I just add a simple validate in my Trade object. Unfortunately, it''s possible to get around the validation by deleting a prior trade, and I can''t figure out the best way to deal with this. My first thought was to override before_destroy, but it doesn''t look like there&...
2008 Nov 09
2
please recommend statistics, time series and econometrics books with finance, macroeconomics, trading and business applications
Hi all, Please recommend good books for the following three categories. (I am aim at finance, macroeconomics, trading and business applications). (1) statistical (financial) data analysis; (2) time series; (3) econometrics. More specifically, I am looking for the following two types of books: (1) Books that provide big pictures and intuitions and books that connect dots... For example, there
2010 Nov 07
1
High Frequency Trading
Hi R users,   Thanks in advance.   I am using R 2.12.0 on Windows XP.   My objective is to construct algorithms for High Frequency Trading.   May I request you to provide me information such as packages or tools please.   Thank you very much for the time you have given.   Regards,   Deb   [[alternative HTML version deleted]]
2009 Nov 11
3
Trading Google Wave invites for host!
Trading up to 10 google wave invites for a fast, powerful Rails host that provides me with a top level domain: ie: webwebwebwebweb.com or wwwww.com Or similar offers. Send me an email or post here. -- Posted via http://www.ruby-forum.com/.
2015 Apr 15
2
Samba 4.2 Account Lockout logging
Hello, We are using the account lockout feature in Samba 4.2. Unfortunately my own account is being locked out overnight and I can't figure out where from :-( Is there a level of logging on a Samba4 DC I can use to record the source address of any authentication failures, be they with Kerberos or native LDAP? Thanks, -- Luke Bigum --- LMAX Exchange, Yellow Building, 1A Nicholas Road,
2011 Jul 29
0
Noble is looking for a Market Risk Manager/Analyst for its London Office, prefer Candidates who have R programming skills
...te the state of affairs to senior management - Write and observe policy - Improve the risk analysis we perform on our trading activities by envisioning and introducing appropriate risk metrics - Perform historical/fundamental analysis that can help in the evaluation of trades - Create analytical tools and models that automate our processes - Oversee the origination activity from a Risk point of view, including: a) the creation of models for the valuation of structured transactions; b) providing assistance to the originators and traders in improving...
2015 Mar 09
1
password lockout policy issue after update to 4.2
Hello, Quick observation after recently updating all DC's to 4.2.0 from 4.1.17. Several users received the notice "account is currently locked out" after entering their password once. I updated the policy to a minimum of 3 attempts before any user logged in initially. I opened Microsoft ADUC tool and clicked the box to unlock their account. This resulted in the user receiving