Monthly Archives: May 2010

Rmetrics AMPL Interface

May 24, 2010
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(This article was first published on Rmetrics blogs, and kindly contributed to R-bloggers) To leave a comment for the author, please follow the link and comment on his blog: Rmetrics blogs. R-bloggers.com offers daily e-mail updates about R news and tutorials on topics such as: visualization (ggplot2, Boxplots, maps, animation), programming (RStudio, Sweave, LaTeX, SQL, Eclipse, git, hadoop, Web...

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THETA AG uses Rmetrics

May 24, 2010
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(This article was first published on Rmetrics blogs, and kindly contributed to R-bloggers) To leave a comment for the author, please follow the link and comment on his blog: Rmetrics blogs. R-bloggers.com offers daily e-mail updates about R news and tutorials on topics such as: visualization (ggplot2, Boxplots, maps, animation), programming (RStudio, Sweave, LaTeX, SQL, Eclipse, git, hadoop, Web...

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Introduction to using R with org-babel, Part 1

May 23, 2010
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This post originally appeared on my Wordpress blog on May 23, 2010. I present it here in its original form.In my opinion, the description of orgmode by its creator as a tool "for keeping notes, maintaining ToDo lists, doing project planning,...

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Introduction to using R with org-babel, Part 1

May 23, 2010
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This post originally appeared on my Wordpress blog on May 23, 2010. I present it here in its original form.In my opinion, the description of orgmode by its creator as a tool "for keeping notes, maintaining ToDo lists, doing project planning,...

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R Function of the Day: sample

May 23, 2010
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This post originally appeared on my Wordpress blog on May 23, 2010. I present it here in its original form.The R Function of the Day series will focus on describing in plain language how certain R functions work, focusing on simple example...

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R Function of the Day: sample

May 23, 2010
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This post originally appeared on my Wordpress blog on May 23, 2010. I present it here in its original form.The R Function of the Day series will focus on describing in plain language how certain R functions work, focusing on simple example...

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Code and brief instruction for graphing Twitter with R

May 23, 2010
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Code and brief instruction for graphing Twitter with R

Edit: I’ve posted an updated version of the script here. It is not quite as compressed as Anatol’s version, but I think it’s a decent compromise between readability and efficiency. Edit #2 And yet another update, this one contributed by Kai Heinrich. I hacked together some code for R last night to visualize a Twitter

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S4 timeDate Package

May 23, 2010
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(This article was first published on Rmetrics blogs, and kindly contributed to R-bloggers) To leave a comment for the author, please follow the link and comment on his blog: Rmetrics blogs. R-bloggers.com offers daily e-mail updates about R news and tutorials on topics such as: visualization (ggplot2, Boxplots, maps, animation), programming (RStudio, Sweave, LaTeX, SQL, Eclipse, git, hadoop, Web...

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Portfolio Risk Surfaces

May 23, 2010
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(This article was first published on Rmetrics blogs, and kindly contributed to R-bloggers) To leave a comment for the author, please follow the link and comment on his blog: Rmetrics blogs. R-bloggers.com offers daily e-mail updates about R news and tutorials on topics such as: visualization (ggplot2, Boxplots, maps, animation), programming (RStudio, Sweave, LaTeX, SQL, Eclipse, git, hadoop, Web...

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R Function of the Day: sample

May 23, 2010
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R Function of the Day: sample

The R Function of the Day series will focus on describing in plain language how certain R functions work, focusing on simple examples that you can apply to gain insight into your own data. Today, I will discuss the sample function. Random Permutations In its simplest form, the sample function can be used to return

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