Monthly Archives: February 2011

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Legislative Explorer | Multidimensional Vote Explorer

Less visually striking than my last project, this visualization shows the voting patterns of Canadian Members of Parliament. It uses a Principal Component Analysis (or PCA) transformation to convert the multidimensional voting record of each MP to a 2D (or Cartesian) form.

Each point on the chart represents an MP. The color of every MP follows their party affiliation. They are tightly clustered because of party discipline :  in Canada, MPs normally vote in accordance to directions given by the Prime Minister.

 

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