Re: [R] time series datasets

2010-03-31 Thread Cedrick Johnson
What kind of time series data? Finance? Econometrics? The 'quantmod' package allows for downloading of stock and FRED data online for analysis. I believe PerformanceAnalytics also has some datasets as well. -c On 3/31/10, vibha patel wrote: > Hello, > > I am searching large multivariate time se

Re: [R] Value-at-Risk Portfolio(both equity and option)

2010-03-31 Thread Cedrick Johnson
One thing that comes to mind immediately is the 'blotter' package which I believe is designed to handle and track multiple instruments. A sloppy temporary solution I guess would be to do some type of lookup or a flag that denotes which instrument is an option and apply the VaR methodology appropri

Re: [R] Value-at-Risk Portfolio(both equity and option)

2010-03-30 Thread Cedrick Johnson
It would help if I included the link: http://n4.nabble.com/VaR-for-path-dependent-option-portfolio-td1676787.html -c On 3/30/10, Cedrick Johnson wrote: > Check out this discussion on r-sig-finance regarding VaR for options. > Quite informative and should be a good starting point. > &g

Re: [R] Value-at-Risk Portfolio(both equity and option)

2010-03-30 Thread Cedrick Johnson
Check out this discussion on r-sig-finance regarding VaR for options. Quite informative and should be a good starting point. -c On 3/30/10, zhang wrote: > > Hello All, > > I am working on the risk measures for a portfolio, which contain both equity > futures, equity options and currency options.

Re: [R] Forecast

2010-03-10 Thread Cedrick Johnson
?forecast Maybe ?xts or ?timeSeries if you need to adjust dates, etc. On 3/11/10, chinna wrote: > > sample report data that i want to forecast > > quarter quarter_index Revenue > 2007 Q1 1 $3,856,799 > 2007 Q2 2 $4,243,328 > 2007 Q3 3

Re: [R] Three most useful R package

2010-03-02 Thread Cedrick Johnson
I think it depends on your particular domain, mine is in finance: Quantmod PerformanceAnalytics And Diethelm Wuertz's collection of packages (fOptions, fPortfolio,etc) Rgds, C On 3/2/10, Ralf B wrote: > Hi R-fans, > > I would like put out a question to all R users on this list and hope > it wil

Re: [R] Fortune candidate! Re: new to R Project

2010-02-23 Thread Cedrick Johnson
library(rant) I recall just over a year ago (Fall08) when I was new to the R language. I realize there's a steep curve in any language, especially with R and the multitudes of packages that exist. With that being said, I still took (still do) time out to read the manuals, the vignettes and perfor

Re: [R] Quantmod error

2010-01-20 Thread Cedrick Johnson
Can you ping the host 'finance.google.com' ?? The error msg is right there, "Unable to Resolve" -c I just tried it now: > getSymbols("GOOG", src="google") [1] "GOOG" > head(GOOG) GOOG.Open GOOG.High GOOG.Low GOOG.Close GOOG.Volume 2007-01-03466.00476.66 461.11 467.59

Re: [R] Java to R interface.

2009-09-25 Thread Cedrick Johnson
You could also try Rserve http://www.rforge.net/Rserve/ -cj vikrant S wrote: I want to call R functions from Java. I read a couple of forums that said to install package rJava in R. However I am not able to install rJava package in linux Ubuntu.I tried with two commands. One is install.packag

Re: [R] run R script automatically by double-clicking WinXP desktop icon

2009-09-22 Thread Cedrick Johnson
Here's something I use (in a batch file): Rterm --no-restore --file=EveningStartup.r Change EveningStartup.r to your particular file. When you create the shortcut, make sure to set the working directory to where your R script is located. Then in your file, you could have the graphs write out

Re: [R] Which one shall I use? '=' or '<-'?

2009-09-16 Thread Cedrick Johnson
I don't have the link off the top of my head, but if you search the archives and look for 'R Google Style Guide' or 'Google R Style' there was quite an interesting conversation thread regarding the use of the two, mostly for readability purposes... -cj Peng Yu wrote: Hi, I was told to use

Re: [R] cluster-lite

2009-09-15 Thread Cedrick Johnson
perhaps a long shot but maybe the package 'nws' could handle some of it. I've recently begun looking into something similar lately as well. -c ivo welch wrote: I am about to write a "cluster-lite" R solution for myself. I wanted to know whether it already exists. If not, I will probably writ

Re: [R] Insall package

2009-09-10 Thread Cedrick Johnson
Try downloading the rscproxy-.ZIP file on windows. Extension tar.gz is used (mostly) on linux or install.packages('rscproxy') -c wesley mathew wrote: Dear Sir Subject: - *Install " rscproxy_1.3-1.tar.gz "* I am working in Windows system. I was try to install *rscproxy* package in

Re: [R] Saving plots to file

2009-08-10 Thread Cedrick Johnson
Try this: png(file="Desktop/hist1.png") plot(glm1$residuals,gain,main = "Hist of residuals and gain") dev.off() -c Sean MacEachern wrote: Appologies if this has been addressed before, but I can't seem to find it in the help archives. I'm looking to do something like the following but it look

Re: [R] Multiple graphs

2009-07-27 Thread Cedrick Johnson
Try dev.new() after each graph is generated. Example code from my setup (adapted a bit to fit your situation): Alternate Method 1: Generate images and insert into PPT png(file = "chart1.png", width=800, height=800) #do something pretty dev.off() Alternate Method 2: Generate images with new wi

Re: [R] RMySQL Error

2009-07-23 Thread Cedrick Johnson
Make a copy of the libmySQL.dll and put it in your R_HOME\bin directory and try again.. Just to be on the safe side, I created an env variable called R_HOME and added R_HOME\bin to my path. HTH -c Brock Tibert wrote: Hi Everyone, I am relatively new to R, but I want to try to

Re: [R] how to run the R script in background in Windows XP?

2009-07-18 Thread Cedrick Johnson
Jie- This is what I use (contained within a batch file and runs using windows scheduler every day at 4AM): Rscript --verbose MorningStartup.r > morningsummary-log.txt HTH, c -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of Jie TANG

Re: [R] remote database queries

2009-07-18 Thread Cedrick Johnson
Here's my MYSQL setup for retrieving data: library(RMySQL) channel <- dbConnect(MySQL(), user="xx", password="xx", dbname="HistData", host="nomnom.cvgrllc.com") EDM1 = dbGetQuery(channel, paste("select Date, o, h, l, c, v, a from HistBondData Where Symbol = 'EDM1' AND a != 0 ORDER BY Da

Re: [R] Standalone program from R script

2009-07-14 Thread Cedrick Johnson
You could perhaps try Rserve (I'm not sure of your level of familiarity with Java, and the full functionality required of your application) or . >From Gabor's link: Take a look at Rwui: http://rwui.cryst.bbk.ac.uk/ Or, my roundabout way of solving problems like this suits you: Basically if a

[R] POSIX, timezones and R-ODBC

2009-07-14 Thread Cedrick Johnson
Howdy- I recently upgraded to R 2.9.1 and did the updates for all of my packages. A few of them now *suggest* the TZ variable to be set, which I did: > Sys.getenv("TZ") TZ "" > Sys.setenv(TZ="America/New_York") > Sys.getenv("TZ") TZ "America/New_York" Next up: library(RODBC)