We know some political parties are closer to each other ideologically, but do they stay that way? And in what topic areas do they actually differ?
I took a look at shifting political alliances in Denmark, in collaboration with Zetland.dk. (in Danish)
Notes on Methodology
Discovering political distances was done by taking every vote done in parliament from 2003 to 2017, and looking at the voting results as one matrix dimension, and political parties as another. A vote of ‘for’ was registerd as 1, ‘abstain’ as 0, and ‘against’ as -1. I did multidimensional scaling from python’s sklearn library to reduce dimensionality and get relative distances between parties.
Once again, Philip Flores of Zetland helped organize ministries into relevant topic areas so we could see shifts in topic area, not just ministry jurisdiction.