We recently uploaded on http://hal.archives-ouvertes.fr/hal-00725090 a revised version of our work, with Ewen Gallic (a.k.a. @3wen) on Visualizing spatial processes using Ripley’s correction: an application to bodily-injury car accident location In this paper, we investigate (and extend) Ripley’s circumference method to correct bias of density estimation of edges (or frontiers) of regions. The idea of the method was theoretical and di#cult to implement. We provide a simple technique – based…
JW Emerson, WA Green, B Schloerke, J Crowley, D Cook, H Hofmann, H Wickham (2013) The Generalized Pairs Plot. Journal of Computational and Graphical Statistics 22(1). Here's a free preprint version. Until this new paper and implementation by Emerson et al., there were no widely available pairs plots that accommodated both numerical and categorical fields. [...]
Why I used html5 for my today’s talk? My last presentation was in html5. This time I wanted to do my slides in something new. I prepared first few slides in Jessyink. Then I got to know that my friend … Continue reading →The post Data visualisation talk: Presentation using reports package appeared first on Fiddling with data and code.
I’ve created another D3 example, of QTL analysis for a phenotype measured over time. (Click on the image for the interactive version.) The code is on github. It took me about a day. The hardest part was figuring out the right data structures. A pixel here is linked to curves over there and over there […]
I love Saint Patrick’s Day for, at least, two reasons. The first one is that, on March 17th, you can play out loud The Pogues, the second one is that it’s the only day in the year when I really enjoy getting a Guiness in a pub. And Guiness is important in statistical science (I did mention a couple of hours ago – on this blog – that beers were…
I’ve come to believe that, for high-dimensional data, visualizations (aka graphs), and particularly interactive graphs, can be more important than precise statistical inference. We first need to be able to view and explore the data, and when it is unusually abundant, that is especially hard. This was a primary contributor to my recent embarrassments, in […]
I just finished an interactive eQTL plot using D3, in preparation for my talk on interactive graphics at the ENAR meeting next week. The code (in CoffeeScript) is available at github. But beware: it’s pretty awful. The hardest part was setting up the data files. Well, that plus the fact that I just barely know […]
When I want to insert figures generated in R into a LaTeX document, it looks better if I first remove the white space around the figure. Unfortunately, R does not make this easy as the graphs are generated to look good on a screen, not in a document. There are two things that can be done to fix this problem. First, you can reduce the white space generated by R.…
The New York Times has an interesting interactive graphic on boys’ and girls’ average scores on a science exam, by country. It’s nice to see a scatterplot. (Often one would see just a bar plot, with female and male bars side-by-side.) Even better, this is an “MA plot.” That is, rather than just plot males […]
I’m making some progress learning D3 (for interactive graphics), by which I mean I’ve gotten a couple of examples to work. Many box plots First, an example for displaying many distributions. Here I’m considering a set of nearly 500 gene expression microarrays, each with 40,000 or so measurements. It’s hard to look at 500 box [...]
