735 search results for "Finance"

A tale of two returns

October 4, 2010
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A tale of two returns

It was the best of times, it was the worst of times. As you may have guessed, this is a mashup of a novel by Charles Dickens and an explanation of financial returns. The key plot element of A Tale of Two Cities is that there are two men, Charles Darnay and Sydney Carton, who … Continue reading...

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R Optimization Function Test

R Optimization Function Test

Using Kalman Filter for CIR interest rate model parameter estimation was introduced at my previously post Kalman Filter finance, soon after that I got a few comments saying the final results are unstable and highly depend on the initial values, that's...

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R tee-shirt

September 21, 2010
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R tee-shirt

I gave my introduction to the R course in a crammed amphitheatre of about 200 students today. Had to wear my collectoR teeshirt from Revolution Analytics, even though it only made the kids pay attention for about 30 seconds… The other few “lines” that worked were using the Proctor & Gamble “car 54″ poster and

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In case you missed it: August Roundup

September 20, 2010
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In case you missed them, here are some articles from August of particular interest to R users. We noted that R had a key role in the US government's reaction to the BP oil spill, as related by the Statistical Engineering division chief at NIST. We linked to an example of creating an animation in Google Earth based on...

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Elder Research Two Day Course

September 18, 2010
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... or what I did on my summer vacation...Just got back from the Elder Research Two Day Course "Tools for Discovering Patterns in Data".  It was a great course that (while not R specific) provides a great overview of Data Mining tools and tec...

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Elder Research Two Day Course

September 18, 2010
By

... or what I did on my summer vacation...Just got back from the Elder Research Two Day Course "Tools for Discovering Patterns in Data".  It was a great course that (while not R specific) provides a great overview of Data Mining tools and tec...

Read more »

BLAS, BLASter, BLAStest: Some benchmark results, and a benchmarking framework

September 15, 2010
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BLAS, BLASter, BLAStest: Some benchmark results, and a benchmarking framework

Usage of accelerated BLAS libraries seems to shrouded in some mystery, judging from somewhat regularly recurring requests for help on lists such as r-sig-hpc (gmane version), the R list dedicated to High-Performance Computing. Yet it doesn't have to b...

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BLAS, BLASter, BLAStest: Some benchmark results, and a benchmarking framework

September 15, 2010
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BLAS, BLASter, BLAStest: Some benchmark results, and a benchmarking framework

Usage of accelerated BLAS libraries seems to shrouded in some mystery, judging from somewhat regularly recurring requests for help on lists such as r-sig-hpc (gmane version), the R list dedicated to High-Performance Computing. Yet it doesn't have to be...

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Missing Data in R

September 12, 2010
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Missing Data in R

Probably all of us have met the issue of handling missing data, from the basic portfolio correlation matrix estimation, to advanced multiple factor analysis, how to impute missing data remains a hot topic. Missing data are unavoidable, and more encompassing than the ubiquitous association of the term, irgoring missing data will generally lead to biased estimates. The...

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R Reshape Package

September 6, 2010
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R Reshape Package

Some of you may know this R reshape package already, I have started to play with it after the post Handling Large CSV Files in R. It is really an excellent one worthing a new post to introduce formally.What is reshape package? reshape: Flexibly reshape data, Reshape lets you flexibly restructure and aggregate data using just two...

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