similar to: Conversion to Adjacency Matrix

Hi, all! I would love if someone could help me figure this out. I can''t seem to see why the following fails: Here''s the spec: it "should redirect back to the index page" do Coupon.should_receive (:new).with({"name"=>@expectedName,"amount"=>@expectedAmount}).and_return(@coupon) @coupon.should_receive(:save) response.should

Hello World! I'm working on my thesis right now (something about financial immunization) I'm currently working in the basics, doing a matrix that lists the present value (or weight) of every combination of coupon rate and term to maturity, this is the code I have right now which is giving me a "longer object length is not a multiple of shorter object length" #start

All, I''m missing something simple, I think. I am writing a spec to say that my CouponController should create a new coupon from the form parameters, then set the current user. Here''s the spec: describe CouponController, "When posting to save_coupon" do before(:each) do @expectedName = "pepper''s" @expectedAmount = 5 coupon =

I have this strange behavior and I don''t undertand why. Here is the thing: I have this record in my payment model: 1.9.3p286 :019 > u.payment.last Payment Load (0.3ms) SELECT "payments".* FROM "payments" WHERE "payments"."user_id" = 10 => [#<Payment id: 37, bank_name: "Mercantil", plan: "Plan Uno", date:

I am a bit confused about counter_cache here. The API docs http://api.rubyonrails.org/classes/ActiveRecord/Associations/ClassMethods.html say that only the belongs_to association can take the :counter_cache option. When I try to use it on a has_many I get an "unknown key(s): counter_cache" error. Why would this be the case? belongs_to means that this model has a field with an id

Dear all I'm currently facing the following situation. We have run a marketing campaign providing to some members one of two type of coupones. In addition to this, some of these members were already touched in the short past by another campaign. So I have the following dataset, where: -mixpre3M= is a flag variable telling us if the customer had already purchased somethign in the past

I''m racking my brain trying to figure out a good method for a coupon system for our ecommerce site. Basically We have a variety of consditions for certain coupons and a variety of effects. Some examples: 1. 5% off any order 2. Free shipping on orders over $50 3. Free shipping on an order if a product foo is part of the order 4. 10% off product foo 5. 5% off entire order if product

# Hi all, # trying to run the following example code # from 'RQuantLib' package... HullWhite <- list(term = 0.055, alpha = 0.03, sigma = 0.01, gridIntervals = 40) Price <- rep(as.double(100),24) Type <- rep(as.character("C"), 24) Date <- seq(as.Date("2006-09-15"), by = '3 months', length = 24) callSch <- data.frame(Price, Type,

When I work with a .html.erb file, the autotest rspec on rails stuff doesn''t understand the file to map it to the right test. I wanted to submit a patch for this, but I''m unsure where the specs would be to update. I found the necessary mapping in rspec_autotest.rb, but I can''t find any specs anywhere. Help? I just need to have /app/views/coupon/index.html.erb to map to

Dear friends, I hope this email finds you all well. This is the dataset I am working with: dput(random_mod12_data2) structure(list(Index = c(1L, 5L, 11L, 3L, 2L, 8L, 9L, 4L), x = c(5, 13, 25, 9, 7, 19, 21, 11), n = c(500, 500, 500, 500, 500, 500, 500, 500), r = c(100, 211, 391, 147, 122, 310, 343, 176), ratio = c(0.2, 0.422, 0.782, 0.294, 0.244, 0.62, 0.686, 0.352)), row.names = c(NA, -8L),

Dear R helpers,     Yesterday I had raised following query which was addressed by Mr Ellison. The query and the wonderful solution as provided by Mr. Ellison are as given below.    ## PROBLEM   I am calculating the 'Yield to Maturity' for the Bond with following characteristics.    Its a $1000 face value, 3 year bond with 10% annual coupon and is priced at 101. The yield to maturity can be

The folks over at CodeWeavers have given us two new dealcodes. :) A dealcode is coupon code that can be used in their online store. The two new dealcodes are "EmulateMe" this dealcode is good for a 15% discount on CrossOver or CrossOver Games for Mac and Linux. The second dealcode is "CxForLess" and it will get you a 10% discount on any product in their store. They also have

hi; threw the end of the year we are running a promo, when ordering any package on http://gwhosting.net including our vps servers and trixbox servers, you can get your first month off. Yes, that's right, enter "30free" with out the quote signs into the coupon code field during checkout to get your first month free. Give us a try, you won't be sorry. Your security is our

Dear R helpers   I am calculating the 'Yield to Maturity' for the Bond with following characteristics.   Its a $1000 face value, 3 year bond with 10% annual coupon and is priced at 101. The yield to maturity can be calculated after solving the equation -   1010 = [100 / (1+ytm)]  + [100 / (1+ytm)^2] + [ 1100 / (1 + ytm)^3]   This can be solved by trial and error method s.t. ytm = 9.601%.

Hi guys I have data that contains the variances vt of the yields of 1, 2, 3, 4, 5,10, 20 year bonds. Assuming the Hull-White model for the yield of a t-year zero-coupon bond, I have to estimate the ? of the Hull-White model using nonlinear least squares and give a 95% con?dence interval for each parameter. Please can you guys tell how to find out ? using R. Any suggestion regarding what functions

Dear R helpers, I have generated a portfolio of Equity, Dollar Rate and say zero coupon bond. I have calculated the daily returns based on the prices available for last two years. Now, I have three seperate csv files (Equity.csv, Dollar.csv and Bond.csv) containing the respective returns. I need to calculate the correlation matrix between the retuns of these assets. Please guide me how this

Hi all, I've just installed RGoogleTrends Version:0.2-1 (after compiling it for windows). And when running the most basic command I get the following error: > ans = getGTrends("coupon") Error in curlPerform(url = url, curl = curl, .opts = .opts) : embedded nul in string: '<ff><fe>Y' In addition: Warning message: RS-DBI driver warning: (closing pending

hi guys I need to interpolate values for the zero coupon yield curve. Following data is given date days rate 1996 01

Some people on this group may have understood from messages posted here that the Sipura SPA-2000 is not currently available for shipping. That is not the case. Voxilla.com has the Sipura SPA-2000 available for immediate shipping, and has had them since late November. The price is $109.95, and it comes with a month of free VoicePulse service with activation fees waived (a $65 value). In return

Hi, I'm running Samba 4.0.8, on FreeBSD 9.2, from operating system packages, as a DC. I have a BDC, running the same. I'm using a Windows 7 workstation with "Active Directory Users and Computers" snap-in to manage usernames, passwords, etc. The workstation is part of the domain, and I'm logged on as Administrator in the domain. I can create groups and add members to them