101 search results for "geographical"

Working with geographical Data. Part 1: Simple National Infomaps

December 21, 2012
By
Working with geographical Data. Part 1: Simple National Infomaps

There is a popular expression in my country called “Gastar polvora en chimangos”, whose translation in English would be “spending gunpowder in chimangos”. Chimango is a kind of bird whose meat is useless for humans. So “spending gunpowder in chimangos” … Continue reading →

Read more »

A brief script on Geographical data analysis in R

A brief script on Geographical data analysis in R

I saw this post and I decided to replicated that good example but with data closer to me, particulary data of my country. So, I've got the shape data of the capital of my country (You can download the data from here). The data comes from the 2002 CENSO...

Read more »

How to map geographically-detailed survey responses?

January 17, 2012
By

David Sparks writes: I am experimenting with the mapping/visualization of survey response data, with a particular focus on using transparency to convey uncertainty. See some examples here. Do you think the examples are successful at communicating both local values of the variable of interest, as well as the lack of information in certain places? Also, The post How...

Read more »

Creating 3D geographical plots in R using RGL

July 11, 2011
By
Creating 3D geographical plots in R using RGL

I've been playing around with the rgl package in the last week, as part of an ongoing quest to come up with nice-looking (but more importantly, useful) data vizualisations. It's a nice little package, and once you've run through the excell...

Read more »

The ins and outs of interacting with web APIs

April 14, 2014
By

We've received a number of questions from our users about dealing with the finer details of data sources on the web. Whether you're reading data from local storage such as a csv file, a .Rdata store, or possibly a proprietary file format, you've most likely run into some issues in the past. Common problems include passing incorrect paths, files...

Read more »

Ontario First Nations Libraries Compared Using Ontario Open Data

April 7, 2014
By
Ontario First Nations Libraries Compared Using Ontario Open Data

I recently downloaded a very cool dataset on Ontario libraries from the Ontario Open Data Catalogue.  The dataset contains 142 columns of information describing 386 libraries in Ontario, representing a fantastically massive data collection effort for such important cultural institutions (although … Continue reading →

Read more »

Melbourne’s Weather and Cross Correlations

April 1, 2014
By
Melbourne’s Weather and Cross Correlations

During a lunchtime discussion among recent GCaP class attendees, the topic of weather came up and I casually mentioned that the weather in Melbourne, Australia, can be very changeable because the continent is so old that there is very little geographical relief to moderate the prevailing winds coming from the west.In general, Melbourne...

Read more »

Experimenting With R – Point to Point Mapping With Great Circles

March 24, 2014
By
Experimenting With R – Point to Point Mapping With Great Circles

I’ve started doodling again… This time, around maps, looking for recipes that make life easier plotting lines to connect points on maps. The most attractive maps seem to use great circles to connect one point with another, these providing the shortest path between two points when you consider the Earth as a sphere. Here’s one

Read more »

GSoC Proposal 2014: package bdvis: Biodiversity Data Visualizations

March 17, 2014
By
GSoC Proposal 2014: package bdvis: Biodiversity Data Visualizations

I am applying for Google Summer of Code 2014 again with “Biodiversity Data Visualizations using R” proposal. We are proposing to take package bdvis to next level by adding more functions and making it available through CRAN. I am posting this idea to get feedback and suggestions from Biodiversity Informatics community.

Read more »

Approximate Bayesian model choice

March 16, 2014
By
Approximate Bayesian model choice

The above is the running head of the arXived paper with full title “Implications of  uniformly distributed, empirically informed priors for phylogeographical model selection: A reply to Hickerson et al.” by Oaks, Linkem and Sukuraman. That I (again) read in the plane to Montréal (third one in this series!, and last because I also watched

Read more »