linguistic:voice_change, structural:expansion
Spatial model

The spatial model of voting plots voters and candidates in a multi-dimensional space where each dimension represents a single political issue sub-component of an issue, or candidate attribute. Voters are then modeled as having an "ideal point" in this space and voting for the nearest candidates to that point. The dimensions of this model can also be assigned to non-political properties of the candidates, such as perceived corruption, health, etc.

Most of the other spectra in this article can then be considered projections of this multi-dimensional space onto a smaller number of dimensions. For example, a study of German voters found that at least four dimensions were required to adequately represent all political parties.