Function reference • sfdep

Neighbors

st_contiguity(): Identify polygon neighbors

st_knn(): Calculate K-Nearest Neighbors

st_dist_band(): Neighbors from a distance band

st_block_nb(): Create Block Contiguity for Spatial Regimes

st_nb_delaunay() st_nb_gabriel() st_nb_relative(): Graph based neighbors

st_complete_nb(): Create Neighbors as Complete Graph

st_nb_lag(): Pure Higher Order Neighbors

st_nb_lag_cumul(): Encompassing Higher Order Neighbors

st_cardinalties(): Calculate neighbor cardinalities

cond_permute_nb(): Conditional permutation of neighbors

Weights

st_weights(): Calculate spatial weights

st_nb_dists(): Calculate neighbor distances

st_kernel_weights(): Calculate Kernel Weights

st_inverse_distance(): Calculate inverse distance weights

Local Indicators of Spatial Association (LISA)

st_lag(): Calculate spatial lag

local_c() local_c_perm(): Compute Local Geary statistic

local_colocation(): Local indicator of Colocation Quotient

local_g() local_g_perm(): Local G

local_gstar() local_gstar_perm(): Local G*

local_jc_bv(): Bivariate local join count

local_jc_uni(): Compute local univariate join count

local_moran(): Calculate the Local Moran's I Statistic

local_moran_bv(): Compute the Local Bivariate Moran's I Statistic

losh() losh_perm(): Local spatial heteroscedacity

nb_match_test(): Local Neighbor Match Test

Global Measure of Spatial Autocorrelation

global_c(): Compute Geary's C

global_c_perm(): Global C Permutation Test

global_c_test(): Global C Test

global_colocation(): Global Colocation Quotient

global_g_test(): Getis-Ord Global G

global_jc_perm() global_jc_test() tally_jc(): Global Join Counts

global_moran(): Calculate Global Moran's I

global_moran_bv(): Compute the Global Bivariate Moran's I

global_moran_perm(): Global Moran Permutation Test

global_moran_test(): Global Moran Test

pairwise_colocation(): Pairwise Colocation Quotient

spatial_gini(): Spatial Gini Index

Spacetime

spacetime() new_spacetime() validate_spacetime() is_spacetime() is.spacetime(): Construct a spacetime object

active() activate(): Activate spacetime context

is_spacetime_cube(): Test if a spacetime object is a spacetime cube

complete_spacetime_cube(): Convert spacetime object to spacetime cube

emerging_hotspot_analysis(): Emerging Hot Spot Analysis

set_col() set_wts() set_nbs(): Set columns from geometry to data

as_sf() as_spacetime(): Cast between spacetime and sf classes

spt_update(): Update spacetime attributes

Point Pattern

center_mean() center_median() euclidean_median(): Calculate Center Mean Point

std_distance(): Calculate standard distance

std_dev_ellipse(): Calculation Standard Deviational Ellipse

ellipse() st_ellipse(): Create an Ellipse

Data

guerry guerry_nb: "Essay on the Moral Statistics of France" data set.

Networks

st_as_graph(): Create an sfnetwork

st_as_edges(): Convert to an edge lines object

st_as_nodes(): Convert to a node point object

node_get_nbs() node_get_edge_list() node_get_edge_col(): Create node features from edges

Utility Functions

group_by.spacetime() mutate.spacetime() ungroup.spacetime(): tidyverse methods for spacetime objects

recreate_listw(): Create a listw object from a neighbors and weight list

find_xj(): Identify xj values

include_self() remove_self(): Includes self in neighbor list

wt_as_matrix() nb_as_matrix(): Convert neighbor or weights list to matrix

critical_threshold(): Identify critical threshold

szero(): Global sum of weights

pct_nonzero(): Percent Non-zero Neighbors

nb_union() nb_intersect() nb_setdiff(): Set Operations

st_nb_apply(): Apply a function to neighbors

Internal functions

check_pkg_suggests(): Check if a vector of packages are available

check_polygon(): Checks geometry for polygons.

class_modify(): Modify object classes

classify_hotspot(): Classify Hot Spot results

global_colocation_calc(): Calculate the Global Colocation Quotient

global_colocation_perm_impl(): Global Colocation Quotient Conditional Permutation Implementation

inverse_dist_calc(): Calculate inverse distance weights

jc_bjc_calc(): Calculate BJC Bivariate Case

jc_bjc_perm_impl(): Calculate BJC BV for conditional permutations

jc_clc_perm_impl(): Calculate CLC BV for conditional permutations

kernels: Kernel functions

local_colocation_calc(): Calculate the local colocation quotient

local_colocation_impl(): spdep implementation of local colocation quotient

local_g_spt(): Calculate the Local Gi* for a spacetime cube

local_moran_bv_calc(): Calculate the Local Bivariate Moran Statistic

local_moran_bv_impl(): Local Bivariate Moran's I spdep implementation

local_moran_bv_perm_impl(): Local Bivariate Moran's I conditional permutation implementation

nmt_calc(): Identify matches between two neighbor lists

nmt_impl(): Implementation of Neighbor Match Test

nmt_perm_impl(): Find conditionally permuted neighbor matches Given a kNN attribute neighbor list and a listw object, find the number of matches given a conditional permutation.

pairwise_colocation_calc(): Pairwise CLQ calculation

pairwise_colocation_perm_impl(): Pairwise CLQ conditional permutation implementation

permute_listw(): Conditionally permutes a listw object

shuffle_nbs(): Internal function to shuffle neighbors

sin_d(): Trigonometric functions

spt_nb(): Create time lagged spatial neighbors

spt_order(): Order a spacetime cube

spt_wt(): Create time lagged spatial weights