esda 2.9.0

- Installation
- Tutorial
- API
- References
- Site

  Contents:

  - Installation
    - Installing released version
    - Installing development version
  - Tutorial
  - API
    - A-DBSCAN
    - Correlogram
    - Gamma Statistic
    - Geary Statistics
    - Getis-Ord Statistics
    - Join Count Statistics
    - Join Count Local Statistics
    - LOSH Statistics
    - Modifiable Areal Unit Tests
    - Moran Statistics
    - Shape Statistics
    - Silhouette Statistics
    - Spatial Pearson Statistics
    - Utility Functions
  - References
- Page
  - esda.shape.radii_ratio
    - `radii_ratio()`

# esda.shape.radii_ratio

esda.shape.radii_ratio(collection)

  The Flaherty & Crumplin (1992) index, OS_3 in [Alt98].

  The ratio of the radius of the equi-areal circle to the radius of the MBC