847 search results for "Maps"

Selection in R

June 1, 2012
By

The design of the statistical programming language R sits in a slightly uncomfortable place between the functional programming and object oriented paradigms. The upside is you get a lot of the expressive power of both programming paradigms. A downside of this is: the not always useful variability of the language’s list and object extraction operators. Related posts:

Read more »

Choosing colour palettes. Part I: Introduction

May 29, 2012
By
Choosing colour palettes. Part I: Introduction

In this series of three posts, we’ll look at colours in R graphics produced with ggplot2: what are the available choices of colour schemes, and how to choose a colour palette most suitable for a particular graphic? In kindergarten, choosing a co...

Read more »

French dataset: population and GPS coordinates

May 24, 2012
By
French dataset: population and GPS coordinates

A short post today based on recent work by @3wen (Ewen Galic, graduate Student in Rennes, spending a year in Montreal). Since we were working on a detailed French dataset (per commune), we needed a dataset containing a list all communes, with popu...

Read more »

Global Fires, the Amazon and Humans

May 23, 2012
By
Global Fires, the Amazon and Humans

Fires are natural - most of the time (click on image for larger view). Natural Global Fires Many plants and animals have evolved to depend on fires periodically occurring in certain parts of the world. This phenomenon has been occurring for...

Read more »

R-NOLD 2012-05-23 05:48:00

May 23, 2012
By
R-NOLD 2012-05-23 05:48:00

Mapping Global Earthquake using XML and MaptoolsEveryday the US Geological Survey (USGS) publish earthquake data (http://earthquake.usgs.gov/earthquakes/recenteqsww/Quakes/quakes_all.html) all over the globe. Using XML and maptool packages of R I d...

Read more »

Big Data, R and SAP HANA: Analyze 200 Million Data Points and Later Visualize in HTML5 Using D3 – Part III

May 2, 2012
By
Big Data, R and SAP HANA: Analyze 200 Million Data Points and Later Visualize in HTML5 Using D3 – Part III

Mash-up Airlines Performance Data with Historical Weather Data to Pinpoint Weather Related DelaysFor this exercise, I combined following four separate blogs that I did on BigData, R and SAP HANA.  Historical airlines and weather dat...

Read more »

Measuring time series characteristics

May 2, 2012
By
Measuring time series characteristics

A few years ago, I was working on a project where we measured various characteristics of a time series and used the information to determine what forecasting method to apply or how to cluster the time series into meaningful groups. The two main papers to come out of that project were: Wang, Smith and Hyndman (2006) Characteristic-​​based clustering for...

Read more »

Next Kölner R User Meeting: 6 July 2012

May 1, 2012
By
Next Kölner R User Meeting: 6 July 2012

The next Cologne R user group meeting is scheduled for 6 July 2012. All details are available on the new KölnRUG Meetup site. Please sign up if you would like to come along, and notice that there is also pub poll for the after "work" drinks. Notes fr...

Read more »

Incompetence borne of excessive cleverness

April 29, 2012
By

I have just got back from the 24 hour Data Science Global Hackathon; I was an on-site participant at Hub Westminster in London (thanks to Carlos and his team for doing such a great job looking after us all {around 50 turned up from the 100 who registered; the percentage was similar in other cities

Read more »

Big Data, R and HANA: Analyze 200 Million Data Points and Later Visualize in HTML5 Using D3 – Part II

April 25, 2012
By
Big Data, R and HANA: Analyze 200 Million Data Points and Later Visualize in HTML5 Using D3 – Part II

In my last blog, Big Data, R and SAP HANA: Analyze 200 Million Data Points and Later Visualize Using Google Maps, I analyzed historical airlines performance data set using R and SAP HANA and put the aggregated analysis on Google Maps.  Undoub...

Read more »