Blog Archives

Create an R package in under 6 minutes

July 17, 2012
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Create an R package in under 6 minutes

Storing your favorite R functions is best done by creating your own R package. This is a quick way to get started with two example functions.Enjoy!

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Screencast: The Making of 3dfcc505dc

June 3, 2012
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Screencast: The Making of 3dfcc505dc

It was all going so well. Until my MacBook began experiencing memory issues. At around the 20 minute mark (which is close to the end), I lost some video explaining the use of the density plot auto-creation super-wizard function. The good news is that i...

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Screencast: The Making of 17018d5488

March 6, 2012
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Screencast: The Making of 17018d5488

The following screencast demonstrates the use of R, the quantmod R package and bash to process SPX data from 1950. An explanation on how to access a git repository that includes the plots and the R console history is also provided. This screencast prod...

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A Simple R Script for Traders

November 21, 2011
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A Simple R Script for Traders

Now that we've got the Python implementation under out belts, let's do the same thing with R. We'll still be able to pass command-line arguments to get a quick look at what our stock of interest is doing during the day. And we start with the familiar i...

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Get Used To It

August 18, 2011
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Get Used To It

This is a brain teaser. You've been warned.The S&P 500 is in a bear market (defined as the 50-day MA being below the 200-day MA) 30.8% of the time. Also, the S&P 500 has experienced single-day 4% declines 0.242% of the time. Of the times we exp...

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Making Stuff is Scary

August 15, 2011
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Making Stuff is Scary

My daughter's best friend lives just down the street. Her mother runs a cupcake shop that's just a little further down the street. Being eleven going on sixteen, my daughter fancies herself a "quote" -- worker at the shop. She's not paid in actual mone...

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Last Time That Happened

June 30, 2011
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Last Time That Happened

I bought a lottery ticket yesterday. I hardly ever buy them. The last time I did I lost a dollar. Actually, every time I've bought a ticket I've lost.  Yesterday I was at the local gas station in line behind a bloke who had a comprehensive folder ...

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vRoom vRoom : Speeding up R with C

June 8, 2011
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vRoom vRoom : Speeding up R with C

Many times you don't want to trouble friends for help with menial tasks like moving furniture. But sometimes you need to step out and ask. Your friends are always happy to help, and after the heavy lifting is done you see how easy it can be. R likes to...

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Home Away From Home

May 2, 2011
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Home Away From Home

It used to be stuffed animals everywhere. These days, it's those annoyingly small lego pieces. Toys in the house have a certain Tribble quality to them. They propagate during some designated time in the middle of the night and in the morning, they are ...

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Bug Collector

April 26, 2011
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Bug Collector

Most are quite unamused to find an ant infestation in their kitchen around this time of year. Time to start spraying that stuff that's not supposed to be harmful to humans but that you always wonder if it is anyway. Some bugs, such as ant attacks or so...

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