R codes for spatial_book - 2nd edition of ''Applied Spatial Statistics And Econometrics: Data Analysis in R' (Routledge, 2026) (ed. K.Kopczewska)

Codes to replicate QDC paper

It presents the codes from the book "Modelling Spatial Density in 2D, 3D, 4D: Spatial Statistics, Spatial Econometrics and Spatial Machine Learning with Applications in R” (Kopczewska, 2025).