Using a slopegraph to highlight tactical voting.
Is a pie chart an appropriate visualisation choice for showing the make-up of the UK’s House of Commons after the 2015 general election?
Sample size plays a critical roll in interpreting data; ignore at your peril.
A brief discussion about perceptual problems associated with pie charts and some suggested alternatives to using a pair of pie charts to show the composition of a whole at two different points in time. Uses data from an International Energy Agency report.