Overview This year's R/Finance conference will be preceded by a full-day masterclass on Rcpp and related topics which will be held on Thursday, April 28, 2011, the Univ. of Illinois at Chicago campus. Join Dirk Eddelbuettel and Romain Fr...

Overview This year's R/Finance conference will be preceded by a full-day masterclass on Rcpp and related topics which will be held on Thursday, April 28, 2011, the Univ. of Illinois at Chicago campus. Join Dirk Eddelbuettel and Romain Fr...

Overview This year's R/Finance conference will be preceded by a full-day masterclass on Rcpp and related topics which will be held on Thursday, April 28, 2011, the Univ. of Illinois at Chicago campus. Join Dirk Eddelbuettel and Romain Fr...

This is the third post in the Backtesting in Excel and R series and it will show how to backtest a simple strategy in R. It will follow the 4 steps Damian outlined in his post on how to backtest a simple strategy in Excel.Step 1: Get the dataThe ...

This is the third post in the Backtesting in Excel and R series and it will show how to backtest a simple strategy in R. It will follow the 4 steps Damian outlined in his post on how to backtest a simple strategy in Excel.Step 1: Get the dataThe ...

The cornerstone of your analysis and quantitative trading algorithms are data. There are lots of different ways how to do it in R (depending of what your investment instruments are). Today I am going to download data from finance.yahoo which are stock ...

A couple of quick notes about some upcoming R courses: In Vancouver, Canada, R trainer Isabella Ghement is presenting two R courses: An Introduction to the Statistical Software Package R, 8:30am-4:30pm, March 30-31, 2011, Vancouver, B.C., Canada (http://www.ghement.ca/RworkshopMarch30and31_2011.html) Advanced Statistical Modeling Using the Statistical Software Package R, 8:30am-4:30pm, May 5-6, 2011, Vancouver, B.C., Canada (http://www.ghement.ca/RworkshopMay5and6_2011.html); And in Seattle, Washington...

(This is a guest post by Damian from Skill Analytics and ETF Prophet) Let me start by saying that I’m not an expert in backtesting in Excel – there are a load of very smart bloggers out there that have, as I would say, “mad skillz” at working with Excel including (but not limited to) Michael Stokes over...

(This is a guest post by Damian from Skill Analytics and ETF Prophet)Let me start by saying that I’m not an expert in backtesting in Excel – there are a load of very smart bloggers out there that have, as I would say, “mad skillz” at working with Excel including (but not limited to) Michael Stokes over...

Could any R expert here help me to vectorize my for loop? Thanks in advance for your favor. The reason I am in trouble is the variable inside my "for" function are updated after each loop, which makes me feel difficult to use lapply, sapply or whatever. Simplifed codes are listed below:for (i in 1:N) { #N could be...