palsr - Projected Actor Locations for Spatial Interaction Modeling
Implements the Projected Actor Locations (PALS) method for
spatial modeling of dyadic interactions between geographically
mobile actors, as described in Kim, Liu and Desmarais (2023)
<doi:10.1017/psrm.2022.6>. PALS applies exponential-smoothing
weights to the spatiotemporal histories of a focal actor and
its interaction partners ("alters") to project the location of
future interactions. The package provides projection,
maximum-similarity parameter estimation by minimizing
great-circle (Haversine) prediction error, nonparametric
bootstrap with multiple-imputation (Rubin's Rules) pooling,
dyadic distance covariate construction, visualization, and a
simulated example dataset of subnational conflict.
