gihi: gihi

In fdzul/denhotspots: a package for calculate gi and hi local spatial statistics

gihi

Description

Calculate gi and hi local spatial statistic

Usage

gihi(x, gi_hi, id, dis, time, alpha = NULL)

Arguments

x	it is an sf object with the number of events for each spatial unit
gi_hi	Define the local spatial statistic. It includes three options ("gi", "hi", "gi_hi", if "gi" calculates the spatial local statistic getis & ord, if it is "hi" calculates hi, and if it is "gi_hi" calculates both statistic
id	is or are the identifiers of each spatial unit
dis	it is the prefix of the variable name. Example den_2018 or denv_2018, dis is den and denv
time	is the unit of time or the time scale of the analyzed time series. example in years, times, months, weeks
alpha	is the value of alpha to determine the threshold of value of gi to discriminate hotspots from non-hotspots

Value

a sf object with the ids and the intensity and hotspots for hi, gi or each.

Author(s)

Felipe Antonio Dzul Manzanilla [e-mail]

References

Getis A, Ord JK. 1992. The analysis of spatial association by the use of distance statistics.Geographical Analysis, 24(2):189-206. Ord JK, Getis A. 1995. Local spatial autocorrelation statistics: distributional issues and an application. Geographical Analysis, 27, 286–306. Ord JK, Getis A. 2012. Local spatial heteroscedasticity (LOSH), The Annals of Regional Science, 48 (2), 529–539. Bivand RS, Wong DWS. 2018. Comparing implementations of global and local indicators of spatial association. TEST, 27(3), 716–748.

See Also

LOSH.cs, localG

fdzul/denhotspots documentation built on Jan. 10, 2025, 2:34 a.m.