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Bivariate Local Join Count Statistics

Source: R/local_spatstat.R
st_local_bijoincount.Rd

Function to apply local Bivariate Join Count statistics

Usage

st_local_bijoincount(
  sfj,
  varcol,
  wt = NULL,
  permutations = 999,
  permutation_method = "complete",
  significance_cutoff = 0.05,
  cpu_threads = 6,
  seed = 123456789
)

Arguments

sfj

An sf (simple feature) object.

varcol

The variable selected to calculate spatial lag, which is a character.

wt

(optional) The spatial weights object,which can use st_weights() to construct,default is constructed by st_weights(sfj,'contiguity').

permutations

(optional) The number of permutations for the LISA computation.

permutation_method

(optional) The permutation method used for the LISA computation. Options are 'complete', 'lookup'. Default is 'complete'.

significance_cutoff

(optional) A cutoff value for significance p-values to filter not-significant clusters.

cpu_threads

(optional) The number of cpu threads used for parallel LISA computation.

seed

(optional) The seed for random number generator.

Value

A factor vector.

Author

Wenbo Lv lyu.geosocial@gmail.com

Examples

library(magrittr)
guerry_path = system.file("extdata", "Guerry.shp", package = "rgeoda")
guerry = sf::read_sf(guerry_path) %>% dplyr::mutate(InvCrm = 1 - TopCrm)
st_local_bijoincount(guerry,c("TopCrm", "InvCrm"))
#>  [1] Not significant Significant     Significant     Not significant
#>  [5] Not significant Not significant Significant     Not significant
#>  [9] Not significant Not significant Not significant Not significant
#> [13] Not significant Not significant Not significant Not significant
#> [17] Not significant Not significant Significant     Significant    
#> [21] Not significant Not significant Not significant Not significant
#> [25] Not significant Not significant Not significant Not significant
#> [29] Not significant Not significant Not significant Not significant
#> [33] Not significant Not significant Not significant Not significant
#> [37] Significant     Not significant Not significant Not significant
#> [41] Not significant Not significant Not significant Not significant
#> [45] Not significant Not significant Not significant Not significant
#> [49] Not significant Not significant Significant     Not significant
#> [53] Significant     Not significant Not significant Not significant
#> [57] Not significant Not significant Not significant Not significant
#> [61] Not significant Not significant Not significant Not significant
#> [65] Not significant Not significant Not significant Not significant
#> [69] Significant     Not significant Not significant Not significant
#> [73] Not significant Not significant Not significant Significant    
#> [77] Not significant Not significant Not significant Not significant
#> [81] Not significant Not significant Not significant Not significant
#> [85] Not significant
#> Levels: Not significant Significant Undefined Isolated