Fig. 3
From: A data-driven network approach for characterization of political parties’ ideology dynamics
Sampling of switching politicians based on ideological distance following a Beta Distribution \(\mathcal {B}(\alpha,\beta)\). The parameters α and β which are proportional to the distance between the origin and destination means (μi,μj see Fig. 2) are shown as vertical dashes. The longer horizontal arrows show the most likely shift in ideology. Because the model is probabilistic, there is also a possibility of the shift occurring in the opposite direction (shorter arrows). Continuous horizontal arrows represent the shift in the origin party while dashed arrows represent the shift in the destination party. In panel a, the destination party is on the right, hence the politicians on the right side of the origin distribution are more likely to leave. Conversely, in panel b the destination party is on the left, hence the politicians on the left side of the origin distribution are more likely to leave