255 search results for "ANOVA"

sab-R-metrics: Logistic Regression

May 5, 2011
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sab-R-metrics: Logistic Regression

It's been a while since my last sab-R-metrics post, and I have not gotten to the real fun stuff yet. I apologize for the long layoff, and it's likely that these will be sparse for the next couple weeks. I have had some consulting opportunities come u...

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Further Adventures in Visualisation with ggplot2

April 25, 2011
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Further Adventures in Visualisation with ggplot2

So I previously took a look at some data of player performance from a computer game. In this post, I’m going to do some further visualisations using ggplot2. The data consists of different types of player character, different roles for those characters, and their overall damage output (the unit here is damage per second, or

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Extra! Extra! Get Your gridExtra!

April 7, 2011
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Extra! Extra! Get Your gridExtra!

The more I use it, the deeper I fall in love with ggplot2. I know, some of you have heard me kvel about it ad nauseum (oh, yiddish and latin in one sentence – extra points!). But the graphs really look great, and once you wrap your head around a few concepts, it’s surprisingly easy

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R ready to Deduce you

April 1, 2011
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R ready to Deduce you

Despite being one of the most powerful computing platforms, and being free at the same time, R still struggles against other statistical software, such as SPSS and SAS, in gaining mass appeal amongst users of statistical and market intelligence software. Many have cited the absence of a user-friendly graphical user interface (GUI)...

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R ready to Deduce you

April 1, 2011
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R ready to Deduce you

Despite being one of the most powerful computing platforms, and being free at the same time, R still struggles against other statistical software, such as SPSS and SAS, in gaining mass appeal amongst users of statistical and market intelligence software. Many have cited the absence of a user-friendly graphical user interface (GUI)...

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New version of vegan released to CRAN (1.17-9)

April 1, 2011
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New version of vegan released to CRAN (1.17-9)

Yesterday Jari packaged up the latest release in the current stable branch of the vegan package. Version 1.17-9 of vegan is now on CRAN as a source tarball with binaries for MS Windows and MacOS X to follow soon. New … Continue reading →

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New version of vegan released to CRAN (1.17-9)

April 1, 2011
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Yesterday Jari packaged up the latest release in the current stable branch of the vegan package. Version 1.17-9 of vegan is now on CRAN as a source tarball with binaries for MS Windows and MacOS X to follow soon.

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Boxplots & Beyond IV: Beanplots

Boxplots & Beyond IV: Beanplots

This post is the last in a series of four on boxplots and some of their extensions.  Previous posts in this series have discussed basic boxplots, modified boxplots based on a robust asymmetry measure, and violin plots, an alternative that essentia...

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ggplot2 joy

February 25, 2011
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ggplot2 joy

I’ve been working on a long-term (25+yr) longitudinal study of rheumatoid arthritis with my boss. He just walked in and asked if I could create a plot showing the trajectory of pain scores over time for each subject, separated by educational level (4 groups). Having now worked with ggplot2 for a while, and learning more

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Statistical Analysis with R, a Review

February 12, 2011
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Statistical Analysis with R, a Review

Long Version: I have a Bachelor’s degree in Computer Science.  I’m pretty handy when it comes to

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