Chris Brunsdon

Recently Published

Flip Flopping of Commercial Places
Overview of initial analysis of Police incident data in terms of time of day. PAM cluster analysis is used to look at patterns of drug offences.
Animation and Tweening
Some hints and tips on animation and tweeting with reference to KDEs
OSGeo Limerick
CIG 2017 as seen by Twitter
Tweets containing the hashtag #cig2017 are analysed in R.
Bidim toolkit
a test
Houston Crime Data
Analysing Houston, TX Crime Data with R, via leaflet
Interactive Mapping with tmap
Introduces the use of tmap
Pipelines and dplyr
Introduction to pipeline and dplyr - standard format
Pipeline and Time Series (ggplot2 / dplyr)
Intro to pipelines and dplyr and use with plot
Use of ggplot with R
Blog form of lecture
R and ggplot
How to use ggplot in R
Visualising data in space and time
Lecture 1 - introduction to R
Modelling Space and Time - Lecture 1
First lecture - introducing R
Map My Runs
How to create interactive maps of running routes from Runkeeper, using R and leaflet.
Europe health dashboard
Just a practice run...
A Future of Geocomputation?
Blog version of a talk given at Kings College London, 18th December 2015
Further Topics in R (4)
Markdown and Rpubs. Reproducibility.
Using Different Colours With Heatmaps
A quick overview of the R code needed to do this.
Publish Document
Further topics in R (3)
ggvis and graphical leaflet pop-ups
Advanced R Lecture 2
Advanced R Lecture 2
Exploring Irish Rainfall Data
Initial demo of web-based tools to explore rainfall in Ireland over 150 years interactively .
'Hidden' Variables and R Environments
The use of environments to pass 'secret' variables between function calls.
How Unpopular is Jeremy Hunt?
A very extreme opinion poll outcome leads to an interesting statistical problem...
The Spatial Autoregression Model and Correlation
This article highlights some issues with spatial lag models involving some highly counterintuitive properties of the correlation between dependent variables that occur in some situations.
Geographically Weighted Regression Quick Tutorial
A quick tutorial about GWR via the GWmodel package
Geographically Weighted PCA Tutorial
Tutorial of GW-PCA based on the Baltic Soil Survey
Geographically weighted Summary Statistics Tutorial
A Practical outlining the use of the GWmodel package for summary statistics
Getting Started With 'caricRture'
A brief introduction to the caricRture package to produce hand-drawn maps.
Ireland Census of Population 2011: A classification of Small Areas
Open source geodemographics example - we may update details in the future, but this is the current state of play...
Getting Started With R
First assignment for ENVS257
Olympic Breakfast Revisited
Re-visting the earlier olympic data analysis with 2012 data - plus some discussion of the volunteered data quality...
Twitter Analysis in R
Word cloud and graph-based analysis of Twitter data
Olympic Breakfast
A look at visualising data about the olympics with R
Choropleth Mapping with GISTools
A brief description of the GISTools package - showing how to create choropleth maps.