Posts Tagged ‘ maps ’

Nice Species Distribution Maps with GBIF-Data in R

September 23, 2011
By
Nice Species Distribution Maps with GBIF-Data in R

Here's an example of how to easily produce real nice distribution maps from GBIF-data in R with package maps... Read more »

Read more »

Example 8.31: Choropleth maps

March 22, 2011
By
Example 8.31: Choropleth maps

In our book, we show a simple example of a map (section 6.4.2) where we read the boundary files as data sets and use SAS and R to plot them. But both SAS and R have complex functionality for using pre-compiled map data. To demonstrate them, we'll sho...

Read more »

Maps with R, part… n+1

January 11, 2011
By
Maps with R, part… n+1

Following the idea posted on James Cheshire's blog (here), I have tried to play a little bit with R and Google. And it works ! Consider for instance life expectancy at birth (that can be found - and downloaded - here). Using the following code, it ...

Read more »

BioStar users (of the world, unite)

October 9, 2010
By
BioStar users (of the world, unite)

Egon writes: Can someone please plot the BioStar users on a Google Map? Sounds like a challenge. Let’s go. 1. Harvesting user IP addresses BioStar user profiles (here’s mine) include a location field. It’s free text and optional, which means that location is missing or inaccurate for many users. However, if you’re logged into BioStar

Read more »

Maps with ggplot2

September 27, 2010
By
Maps with ggplot2

The ggplot2 package offers powerful tools to plot data in R. The plots are designed to comply with the “grammar of graphics” philosophy and can be produced to a publishable level relatively easily. For users wishing to create a good map without too much thought I would recommend this worksheet. For those without their own

Read more »

Map of Upcoming Ruby Conferences

August 21, 2010
By
Map of Upcoming Ruby Conferences

One of the top searches on rubyflow is “conference”.  A recent post showed how to create a map with the location of the 2010 R User Conference.  So why not expand on the subject and create a map with numerous conference locations thr...

Read more »

U.S. Unemployment Data: Animated Choropleth Maps

August 4, 2010
By
U.S. Unemployment Data: Animated Choropleth Maps

I was curious about creating maps with ggplot2 - and was happy to find that great minds have long since tackled this topic.  Folks who are interested in how to learn about R (and ggplot2) might be interested in the process.  (There should be ...

Read more »

Maps, Geocoding, and the R User Conference 2010

July 14, 2010
By
Maps, Geocoding, and the R User Conference 2010

The R User Conference 2010 is scheduled for July 20-23, 2010.  Wanna know where?Although there are more sophisticated methods of mapping with R the maps package makes mapping activities straightforward.  A bit of XML and Google...

Read more »

Europe Data set:> eurodist                 Athens Barcelona…

July 3, 2010
By
Europe
Data set:> eurodist                 Athens Barcelona…

Europe Data set:> eurodist                 Athens Barcelona Brussels Calais Cherbourg Cologne CopenhagenBarcelona         3313                                                   

Read more »

Maps without map packages

July 1, 2010
By
Maps without map packages

LATITUDE + LONGITUDE + OVERPLOTTING FIX = MAPS Decision Science News is always learning stuff from colleague, physicist, mathlete, and all-around computer whiz Jake Hofman. Today, it was a quick and clean way to make nice maps in R without using any map packages: just plot the latitude and longitude of your data points (e.g.

Read more »