1653 search results for "ggplot2"

Plotting implicit functions in R

November 11, 2011
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Plotting implicit functions in R

So in prepping for my latest manuscript on population dynamics I have been creating all the necessary figures.  One of them I considered was a 2-d surface plot of a modified Ricker equation showing the transitions from extinction stability, and stability to limit cycles.  Inconveniently though the only way to do this is with an implicit function.  Since becoming...

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Visualizing Likert Items

November 11, 2011
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Visualizing Likert Items

I have become quite a big fan of graphics that combine the features of traditional figures (e.g. bar charts, histograms, etc.) with tables. That is, the combination of numerical results with a visual representation has been quite useful for exploring...

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Visualizing Likert Items

November 11, 2011
By
Visualizing Likert Items

I have become quite a big fan of graphics that combine the features of traditional figures (e.g. bar charts, histograms, etc.) with tables. That is, the combination of numerical results with a visual representation has been quite useful for exploring...

Read more »

Managing a Local R Repository

November 10, 2011
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I will be teaching a workshop on R and LaTeX at NEAIR in just under a month. One of the issues I will encounter is a lack of Internet access. I also work with restricted data from NCES which requires the computer to be secured including no network access. As such, I need to manage software from removable

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In case you missed it: October Roundup

November 10, 2011
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In case you missed them, here are some articles from October of particular interest to R users. The creator of the ggplot2 package, Hadley Wickham, shares details on some forthcoming big-data graphics functions (based on research sponsored by Revolution Analytics). A list of several dozen free data sources that can easily be imported into R. Bob Muenchen gave a...

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Managing a Local R Repository

November 10, 2011
By

I will be teaching a workshop on R and LaTeX at NEAIR in just under a month. One of the issues I will encounter is a lack of Internet access. I also work with restricted data from NCES which requires the computer to be secured including no network a...

Read more »

Getting Started With Twitter Analysis in R

November 9, 2011
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Getting Started With Twitter Analysis in R

Earlier today, I saw a post vis the aggregating R-Bloggers service a post on Using Text Mining to Find Out What @RDataMining Tweets are About. The post provides a walktrhough of how to grab tweets into an R session using the twitteR library, and then do some text mining on it. I’ve been meaning to

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What the frack? Does hydraulic fracturing lead to increased earthquakes?

November 8, 2011
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What the frack?  Does hydraulic fracturing lead to increased earthquakes?

Earthquakes are normal occurrences along the boundaries of major plate margins, such as along the San Andreas fault system of California,  and are less common within plate interiors.  Try telling that, however, to the citizens of Oklahoma who...

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Blankety Blank

November 8, 2011
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Blankety Blank

The erstwhile big 4 all blanked their opponents last Saturday and a poster on the Guardian wondered when was the previous occasion of such an occurrence. It’s a pretty simple procedure in SQL using a subquery, but in the spirit of learning R, I thought I would tackle the problem in that language, with the

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Code Optimization: One R Problem, Eleven Solutions – Now Thirteen!

November 7, 2011
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Code Optimization: One R Problem, Eleven Solutions – Now Thirteen!

Following up from my previous post “Code Optimisation: One R Problem, Ten Solutions – Now Eleven!” I figured out a twelfth solution after writing that blog post. Furthermore, half way through writing this blog post I figured out a thirteenth solution too. As a recap, the problem is taken from rwiki where the goal is to find

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