Fig. 4
From: Exploring the use of mobile phone data for national migration statistics
Comparing regional outflow, inflow and net migration between census data and models’ estimates for Period 2011: CDRLM in a–c, GTSIM in d–f, and CGTSIM in g–i. For each type of model, the results of model with the lowest RMSE are presented. The Zambezi region as an outliner is excluded, and unadjusted CDR data are used
