GeospatIal Distribution DYnamics (GIDDY)

Giddy is an open-source python library for the analysis of dynamics of longitudinal spatial data. Originating from the spatial dynamics module in PySAL (Python Spatial Analysis Library), it is under active development for the inclusion of many newly proposed analytics that consider the role of space in the evolution of distributions over time and has several new features including inter- and intra-regional decomposition of mobility association and local measures of exchange mobility in addition to space-time LISA and spatial markov methods.

Citing giddy

If you use PySAL-giddy in a scientific publication, we would appreciate using the following citation:

Bibtex entry:

  author       = {Wei Kang and
                  Sergio Rey and
                  Philip Stephens and
                  Nicholas Malizia and
                  James Gaboardi and
                  Stefanie Lumnitz and
                  Levi John Wolf and
                  Charles Schmidt and
                  Jay Laura and
                  Eli Knaap},
  title        = {pysal/giddy: Release v2.3.3},
  month        = jun,
  year         = 2020,
  publisher    = {Zenodo},
  version      = {v2.3.3},
  doi          = {10.5281/zenodo.3887455},
  url          = {}