Inspired with TED and Hans Rosling
I found this idea from TED.com where Hans Rosling gave an inspiring talk at TED about social and economic developments in the world over the last 50 years. Rosling visualise his talk in amazing way using animated bubble charts. After that (2010) this technology is also available all others thanks to Google and R-package developers. You only need R version 2.11.0 or higher and googleVis -library >= 0.2.4 to do you own “bubble chart”.
Short introduction
googleVis is an R package providing an interface between R and the Google Visualisation API. All output of googleVis is html code that contains the data and references to JavaScript functions hosted by Google. You only need to upload this html file into your operators server and open your webbrowser. Voilaa…after that you could “rattle” your data with very new way.
Please, hold onto your hat now we go forward within this issue….
I was so facinated about this “bubble charting” technology that I decided to make also my own test. I have always want to know how energy production, air emissions, and GPD link together…so I collect data from Eurostat and UN to produce my own “bubble chart” from all EU-countries. Of course I calculated all dependent variables per population.
We need only few rows of code:
#first activate library in R
library(googleVis)
#download data from server. Note you have to first "manipulate" your data to appropriate format.
energia <- read.table("http://energy.goeuropeinfo.com/data/CEIP_CLRTAP_UN_UNFCCC_EUROSTAT_me_edited.csv", header=TRUE, sep=";", na.strings="NA", dec=",", strip.white=TRUE)
#lets check that everythin is ok
data(energia)
#after that just write code below to produce your bubble
energiadat <- gvisMotionChart(energia, "Maa", "Vuosi", options=list(width=730, height=540))
plot(energiadat)
cat(energiadat$html$chart, file="eu_ente_emissions.html")
#upload html file into your service provider server
In Motion chart you could choose four variables to present at the same time. To “run” this chart just push the play button.
By the way…I have also made one oral presentation in January by using motion chartting and belive me…audience ask me to show more and more motion…..
Have Fun,
Marko
Source cite:
1 Markus Gesmann and Diego de Castillo. Using the Google Visualisation API with R. The R Journal, 3(2):40-44, December 2011.
2 CEIP, CLRTAP, UN, UNFCCC and Eurostat emissons data.