Univariate Spatial Stratification — st

Univariate Spatial Stratification by invoking rgeoda's *_breaks function.

Usage

st_breaks(sfj, varcol, break_method = "stddev", k = 6)

Arguments

sfj: An sf, tibble or data.frame object
varcol: The variables selected to run univariate spatial stratification.
break_method: (optional) Which has to be one of "stddev"(default), "hinge15", "hinge30", "percentile", "natural", "quantile". When the break_method is "natural" or "quantile", you can assign the k argument to have how many breaks, other methods will have 6 groups.
k: (optional)A numeric value indicates how many breaks,default is 6.

Value

A vector of numeric values of computed breaks

Author

Wenbo Lv lyu.geosocial@gmail.com

Examples

library(sf)
guerry = read_sf(system.file("extdata", "Guerry.shp", package = "rgeoda"))
st_breaks(guerry,'Crm_prs',break_method = "quantile", k = 5)
#> [1] 13270.5 17704.5 21476.5 26743.5