Publications by tylerrinker
Add Text Annotations to ggplot2 Faceted Plot
In my experience with R learners there are two basic types. The “show me the code and what it does and let me play” type and the “please give me step by step directions” type. I’ve broken the following tutorial on plotting text on faceted ggplot2 plots into 2 sections: The Complete Code and Final Outcome A Bit of Explanation Hopeful...
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Add Text Annotations to ggplot2 Faceted Plot (an easier approach)
I recently posted a blog about adding text to a ggplot2 faceted plot (LINK). I was unhappy with the amount of time it takes to create the text data frame to then label the plot. And then yesterday when the new version of ggplot2 0.9.2 was announced I got to reading about how ggplot2 objects are stored and I decided that I could extract a great d...
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Presidential Debates with qdap-beta
qdap brief intro For the past year I’ve been working on a package (qdap) to assist my field in quantitative discourse analysis; basically looking at patterns in language. It’s still a ways from being finished and lacks documentation (roxygen2 is my friend), but after seeing the presidential debates yesterday I decided to try using some of th...
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Splitting and Combining R pdf Graphics
A question that often comes across various help lists is how to combine or split an output from an R graphics device. Maybe you have looped/combined multiple visuals into a single pdf to avoid cluttering your working directory and now you want to pull various pages out. Or maybe you have several different pdfs of various sizes you’d...
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Vice Presidential Debates with qdap-beta
After the presidential debates I used the beta version of qdap to provide some initial surface level analysis (LINK to Presidential Debates with qdap-beta). In the comments of that post, annon (a commenter) provided a link to an analysis/visualization that utilizes bubbles to demonstrate proportion of words and colors and labels to show each can...
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How do I re-arrange…?: Ordering a plot.
One of the most widely seen FAQ coming across list serves and R help sites is the question: “How do I re-arrange/re-order (plotting geom/aesthetic such as bar/labels) in a (insert plot type here) using(insert graphics system here) in R?” . Don’t believe me? google “reorder factor r plot” and see how many hits you get. I’d venture to...
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Presidential Debates 2012
I have been playing with the beta version of qdap utilizing the presidential debates as a data set. qdap is in a beta phase lacking documentation though I’m getting there. In previous blog posts (presidential debate 1 LINK and VP debate LINK) I demonstrated some of the capabilities of qdap. I wanted to further show some of qdap’s capabilit...
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Gradient Word Clouds
I like word clouds because they are visually appealing and provide a ton of information in a small space. Ever since I saw Drew Conway’s post (LINK) I have been looking for ways to improve word clouds. One of the nice feature’s of Drew’s post was that he colored the words according to the gradient. Unfortunately, Drew’s cloud lacks some o...
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Tips for R Package Creation
I’m being tortured by the mistakes of my past self. I think I’ve made most every mistake possible in creating a package and I want to go back in time and tell year ago me all I know now. But it seems require(timetravel) isn’t working on my machine. So instead I’ll share with other new package creators what I’ve learned along the way in ...
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qdap 0.2.0 released
This is the first CRAN release of qdap (qdap 0.2.0) found here. qdap (Quantitative Discourse Analysis Package) is an R package designed to assist in quantitative discourse analysis. The package stands as a bridge between qualitative transcripts of dialogue and statistical analysis and visualization. The qdap package automates many of the tasks ...
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