Stratified Heterogeneity Measure, Dominant Driving Force Detection, Interaction Relationship Investigation

Spatial stratified heterogeneity (SSH), referring to the within strata are more similar than the between strata, a model with global parameters would be confounded if input data is SSH. Note that the "spatial" here can be either geospatial or the space in mathematical meaning. Geographical detector is a novel tool to investigate SSH: (1) measure and find SSH of a variable Y; (2) test the power of determinant X of a dependent variable Y according to the consistency between their spatial distributions; and (3) investigate the interaction between two explanatory variables X1 and X2 to a dependent variable Y (Wang et al 2014 , Wang, Zhang, and Fu 2016 ).


Spatial stratified heterogeneity (SSH), referring to the within strata are more similar than the between strata, a model with global parameters would be confounded if input data is SSH. Note that the "spatial" here can be either geospatial or the space in mathematical meaning. Geographical detector is a novel tool to investigate SSH: (1) measure and find SSH of a variable Y; (2) test the power of determinant X of a dependent variable Y according to the consistency between their spatial distributions; and (3) investigate the interaction between two explanatory variables X1 and X2 to a dependent variable Y.

To install the stable version from CRAN:

install.packages('geodetector')

References

Wang JF, Li XH, Christakos G, Liao YL, Zhang T, Gu X & Zheng XY. 2010.Geographical detectors-based health risk assessment and its application in the neural tube defects study of the Heshun region, China. International Journal of Geographical Information Science 24(1): 107-127.

Wang JF, Zhang TL, Fu BJ. 2016.A measure of spatial stratified heterogeneity. Ecological Indicators 67(2016): 250-256.

News

Version 1.0.3 (2018-10-16)

  • Minor corrections (e.g. add italic) in the Vignette.

Version 1.0.2 (2018-08-13)

  • Update demo data.
  • Modify fuction documents and dataset documents caused by demo data updating.
  • Minor corrections (e.g. add italic) in the Vignette.
  • Minor correction in risk_detector(): remove a dot in result description.

Version 1.0.1 (2018-07-10)

First official CRAN release.

Reference manual

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install.packages("geodetector")

1.0-3 by Chengdong Xu, 6 months ago


Browse source code at https://github.com/cran/geodetector


Authors: Chengdong Xu [aut, cre] , Jinfeng Wang [aut] , Yue Hou [ctb] , Qian Yin [ctb]


Documentation:   PDF Manual  


GPL (>= 2.0) license


Imports sp, rgeos, rgdal, maptools

Suggests knitr, rmarkdown


See at CRAN