If you are familiar with my UK Opinion Poll Tracker, you will know that one of my key charts for making predictions of the 2017 General Election is R1 which shows the changes in vote share by region.

As I have explained, I track the regional breakdowns to produce this chart.  Every now and again, a full on poll takes place to explore a region in more detail and this allows me to check how good chart R1 is.

[Read more…] about UK Opinion Poll Tracker #4 – My Welsh Barometer Poll Forecast Was Correct!