844 search results for "maps"

More Chicago Mayoral Analaysis

February 26, 2011
By
More Chicago Mayoral Analaysis

I perform a precincts-votes analysis on the returns from the Chicago Democratic Mayoral primary of 2011.

Read more »

Mapping the 2011 Chicago Mayoral Democratic Primary

February 25, 2011
By
Mapping the 2011 Chicago Mayoral Democratic Primary

Mapping the Chicago Democratic Mayoral 2011 primary with Ruby, R, and ggplot2

Read more »

Choropleth tutorial and regression coefficient plots

February 21, 2011
By
Choropleth tutorial and regression coefficient plots

About two weeks ago, I gave short talk at Duke, wherein I presented a brief tutorial on creating choropleth maps in R using ggplot2. Since the code is already written, and the data and shapefiles already hosted online, I thought I would share the tutorial more widely. A .ZIP file containing all the files necessary … Continue reading →

Read more »

Book Review: R Graphs Cookbook

February 17, 2011
By
Book Review: R Graphs Cookbook

Book InformationMittal, H. (2011). R graphs cookbook. Birmingham, UK: Packt Publishing Ltd.AudienceThe book's stated audience is anyone who is familiar with the basics of R, as well as expert users who are looking for a graphical reference. However, it...

Read more »

Book Review: R Graphs Cookbook

February 17, 2011
By
Book Review: R Graphs Cookbook

Book InformationMittal, H. (2011). R graphs cookbook. Birmingham, UK: Packt Publishing Ltd.AudienceThe book's stated audience is anyone who is familiar with the basics of R, as well as expert users who are looking for a graphical reference. However, it...

Read more »

Mapping London’s Population Change 1801-2030

February 16, 2011
By
Mapping London’s Population Change 1801-2030

Buried in the London Datastore are the population estimates for each of the London Boroughs between 2001 – 2030. They predict a declining population for most boroughs with the exception of a few to the east. I was surprised by this general decline and also the numbers involved- I expected larger changes from one year to ...

Read more »

Extracting all Crime Data for England and Wales using R and MYSQL

February 14, 2011
By
Extracting all Crime Data for England and Wales using R and MYSQL

Last week I started creating some data extraction code for the new England and Wales crime maps website using the R software / language. Although there is an API, a more efficient way of accessing all of the data (and without causing stress to their API server) is to download the CSV files located here

Read more »

Extracting all Crime Data for England and Wales using R and MYSQL

February 14, 2011
By
Extracting all Crime Data for England and Wales using R and MYSQL

Last week I started creating some data extraction code for the new England and Wales crime maps website using the R software / language. Although there is an API, a more efficient way of accessing all of the data (and without causing stress to their AP...

Read more »

Troubling news for the teaching of evolution

February 9, 2011
By
Troubling news for the teaching of evolution

A recent survey reported in Science ("Defeating Creationism in the Courtroom, but not in the Classroom"),  suggests that high school teachers are not teaching evolution to the fullest extent, say, that grammar is being taught in the English c...

Read more »

sab-R-metrics: Some Extra Visualization Customization

January 31, 2011
By
sab-R-metrics: Some Extra Visualization Customization

Last post, I described a number of ways to show your data on a scatter plot. Ricky Zanker at THT has a similar post today for those looking to get some extra exposure and another take on R programming. Today, I plan to extend on this with a little more customization. First, if you've missed...

Read more »