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...eciated. I'm running on Mac OS X version 10.5.8 with all apple updates in. My processor is 2.2 GHz Intel Core 2 Duo Memory: 2 GB 667 MHz DDR2 SDRAM Startup Disk is a Macintosh HD. The computer is almost 3 years old. It just had a new hard drive installed as well. Thanks in advance, Brad Price The installer log looks like: Nov 17 21:32:39 brad-prices-macbook /System/Library/CoreServices/Installer.app/Contents/MacOS/Installer[1503]: vm_allocate: 0, 0x5800000 - 0x25800000 Nov 17 21:32:39 brad-prices-macbook /System/Library/CoreServices/Installer.app/Contents/MacOS/Installer[1503]: v...

I have the following many-to-many relationships defined in my model code to model a many to many relationship between Media and PriceCode with Price being the association table: class Media < ActiveRecord::Base has_many :prices has_many :price_codes, :through => :prices end class Price < ActiveRecord::Base belongs_to :media belongs_to :price_code end class PriceCode < ActiveRecord::Base has_many :prices has_...

...error - NoMethodError in AdminController#sort You have a nil object when you didn''t expect it! You might have expected an instance of Array. The error occured while evaluating nil.each #{RAILS_ROOT}/app/controllers/admin_controller.rb:171:in `sort'' # My view - <ul id="price"> <% @prices.each do |@price| %> <li id="price_<%= @price.id %>"> <%= @price.service %> <%= @price.price %> </li> <% end %> </ul> <p id="list-info"></p> <%= sortable_element ''price'...

Hi, I have some problems with an application where I''m using custom accessors to do currency conversions. In my model, I have a price attribute in the database that stores the value in cents, to avoid future problems with float arithmetic and round. But at the views, I would like to show the price in euros, with decimal for the cents. So I defined a new attribute called price_in_euros, and the corresponding accesors: class Repor...

I am running R 2.1.1 in a Microsoft Windows XP environment. I have a matrix with three vectors (“columns”) and ~2 million “rows”. The three vectors are date_, id, and price. The data is ordered (sorted) by code and date_. (The matrix contains daily prices for several thousand stocks, and has ~2 million “rows”. If a stock did not trade on a particular date, its price is set to “NA”) I wish to add a fourth vector that is “next_price”. (“Next price” is the c...

days=Sys.Date()-1:70 price=abs(rnorm(70)) regular=rep(c(0,0,0,0,1,0,1,0,0,1),c(7,7,7,7,7,7,7,7,7,7)) y=data.frame(cbind(days,price,regular)) y is like days price regular 1 14990 0.16149463 0 2 14989 1.69519358 0 3 14988 1.57821998 0 4 14987 0.47614311 0 5 14986 0.87016180 0 6 14...

Hi, I have some problems with an application where I''m using custom accessors to do currency conversions. In my model, I have a price attribute in the database that stores the value in cents, to avoid future problems with float arithmetic and round. But at the views, I would like to show the price in euros, with decimal for the cents. So I defined a new attribute called price_in_euros, and the corresponding accesors: class Repor...

Dear all, Apologies for this beginner's question. I have a variable Price, which is associated with factors Season and Crop, each of which have several levels. The Price variable contains missing values (NA), which I want to substitute by the mean of the remaining (non-NA) Price values of the same Season-Crop combination of levels. Price Crop Season 10 R...

Hello, I am relatively new to using R. The text file contains the date and price . I want to read and manipulate the data in R. However, when I use read.table, it treats all of the data as "factors" and I do not know how to treat the data as numbers: http://r.789695.n4.nabble.com/file/n4498828/p_diarios.txt p_diarios.txt setwd ("C:\\Users\\Sandro\\Dropbox\\R...

I would like to create a subtotal table with custom bands. seq1 = seq(0, 100, by = 5) seq2 = seq(100, 1000, by = 100) Bands = c(seq1, seq2) #Prices Prices = sample(1:1000, 200, replace=F) #corresponding size for the given price above. size = sample(1:1000, 200, replace=F) How would I find the subtotal of the size based on a given price falls within a band? -- View this message in context: http://r.789695.n4.nabble.com/subtotals-base...

Hello, list,   I've been struggling with this task for a while looking for an efficient way to solve it: There are two variables 'price' and 'mentioned'. I want to 'enlarge' data so that missing price points within the price range are added to variable price. Also variable 'mentioned' is to receive values 0 in these cases. Note: Price points in original data can repeat if several persons mentioned that p...

HI, Assume I have the data frame generated from R as the following: Product Price market_share A 100 10% B 110 9% C 120 20% D 90 61% What I want to do is to have this kind of excel user interface by changing price of certain products, to get the impact of market share generated from R: if...

...king for a little validation (no flames please). I have a table of units like so: CREATE TABLE `units` ( `id` int(11) NOT NULL auto_increment, `number` varchar(255) NOT NULL default '''', `description` text NOT NULL, PRIMARY KEY (`id`) ) TYPE=MyISAM; that has_many :prices like so: CREATE TABLE `prices` ( `id` int(11) NOT NULL auto_increment, `price` decimal(10,2) NOT NULL default ''0.00'', `unit_id` int(11) default NULL, `created_at` datetime NOT NULL default ''0000-00-00 00:00:00'', PRIMARY KEY (`id`), KEY `unit_...

Hi, I'm trying to construct what I think should be a fairly simple plot, yet I'm having a tremendously difficult time. I'm trying to create a very simple graph showing the effect of interest rates on option prices. I have three sets of option prices that I've calculated using rMetrics. Each set contains a call price and a put price at a particular interest rate. Each set uses a different interest rate(0%, 5%,10%). The idea is to have "call" and "put" on the X axis, the opti...

Dear R users, I have a panel data set (in MS excel) on prices across countries and time country time price 1 "23/11/08" 2 1 "28/12/08" 3 1 "25/01/09" 4 1 "22/02/09" 5 1 "29/03/09" 6 1 &quo...

I read a table as follows: > F1 <- read.table("Rtext3.txt") > F1 Price Floor Area Rooms Age Cent.heat a 52.00 111 830 5 6.2 no b 54.75 128 710 5 7.5 no c 57.50 101 1000 5 4.2 no d 57.50 131 690 6 8.8 no e 59.75 93 900 5 1.9 yes As it is seen, the rows have a name. However I don't know how to acc...

I am using CSV in a rake task (db:seed) on Rails 3.0.3, Ruby 1.9.2 to read a file with some funny chars in it. Upon breaking in at a point where the row read using CSV is in variable row, with the string with the char in row[''price''] I get the following strange results which I cannot understand. (rdb:1) row[''price''] "\xA32.00" (rdb:1) row[''price''][0] "\xA3" (rdb:1) row[''price''][0] == "\xA3" false (rdb:1) row[''price''...

I have loaded price data for GE and then calculated a 50 day simple moving average. Then I have a created a ifelse statement that produce a 1 when GE's closing price is above the simple moving average and a 0 when GE Closing price is below the 50 day simple moving average. However, what I really want to do is...

...$<NA> $<NA>[[1]] [1] "BID" $<NA>[[2]] [1] 0.6717 $<NA>[[3]] [1] 5e+06 $<NA> $<NA>[[1]] [1] "BID" $<NA>[[2]] [1] 0.6717 $<NA>[[3]] [1] 17200000 and then as.data.frame them in R but this gives me > print(l); X0.type X0.price X0.volume X1.type X1.price X1.volume X2.type X2.price 1 BID 0.6723 3e+06 BID 0.6722 5e+06 BID 0.67195 X2.volume X3.type X3.price X3.volume X4.type X4.price X4.volume X5.type 1 19400000 BID 0.6723 3e+06 BID 0.6722 5e+06 BID X5.price X5.volume X...

My code below makes a data frame with columns for date, time, and price. Time on each date runs from 1 to 4. I'd like to add a new column "ts$closingprice", which would have the closing price for that date. To find the closing price, I'd like to take the price in the row having the greatest time value for each date. Then I'd like to fill that...