Vote Compass is an online "electoral literacy application, whose goal is to encourage engagement with and stimulate discussion around the policy platforms of Canada's political parties. In the lead-up to the 2011 Canadian election, Vote Compass collected the results of an on-line 10-minute survey from more than 2 million participants, and used the results to align voters with the...
Posts Tagged ‘ graphics ’
Misleading Statistics: Too much risk without a financial adviser?
This popular article references a report by financial consulting firms that makes a fairly convincing argument (even though they mostly neglect inferential statistics, and some parts of their argument are misleading, or otherwise not convincing) that 401(k) participants who accept "help" from financial experts take less risk and have better returns than those who do
A chart for marathoners
Here's a cool application of calendar heat maps: runner Andy used R to catalogue his daily running mileage over the last 2+ years: There are lots of ways to chart data like this (a simple time-series chart, for example), but sometimes looking at data in new ways offers fresh perspectives. For example, Andy notes: "Apparently I missed running on...
Halloween 2011 count
We don’t get many kids seeking candy at our house. I’m not sure if there just aren’t many kids in the neighborhood, or if it’s our location (next to the pond, with a big gap before the next house). I decided to keep track. As usual, we bought a huge bag of candy, and we 
Putting the R in Hallowe’en
PhD student Caroline Tucker created a Hallowe'en card using the R graphics system: You can find the R code to create the above image here. Note that you'll need to install the fields and MBA packages first. One interesting aspect of the code is the use of the mba.surf function to create the shading that gives the Jack-o'-lantern its...
Learning R: Project 1, Part 2
So it's been a week since I started down this path. I worked most of this out over last weekend, went to a conference, had hectic week at work, and then realized I lost my work. Gah.I'll be posting my general thoughts on R later. Most...
ggplot2 for big data
(Hadley Wickham, author of ggplot2 and several other R packages, guest blogs today about forthcoming big-data improvements to his R graphics package -- ed.) Hi! I'm Hadley Wickham and I'm guest posting on the Revolutions blog to give you a taste of some of the visualisation work that my research team and I worked on this summer. This work...
Lattice when modeling, ggplot when publishing
When working in research projects I tend to fit several, sometimes quite a few, alternative models. This model fitting is informed by theoretical considerations (e.g. quantitative genetics, experimental design we used, our understanding of the process under study, etc.) but … Continue reading →
Setting plots side by side
This is simple example code to display side-by-side lattice plots or ggplot2 plots, using the mtcars dataset that comes with any R installation. We will display a scatterplot of miles per US gallon (mpg) on car weight (wt) next to … Continue reading →
All combinations for levelplot
In a previous post I explained how to create all possible combinations of the levels of two factors using expand.grid(). Another use for this function is to create a regular grid for two variables to create a levelplot or a … Continue reading →
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
