adaptive_bw_tnkde: Adaptive bandwidth for TNDE

View source: R/adaptive_simultaneous_tnkde_bw.R

adaptive_bw_tnkdeR Documentation

Adaptive bandwidth for TNDE

Description

Function to calculate Adaptive bandwidths according to Abramson’s smoothing regimen for TNKDE with a space-time interaction.

Usage

adaptive_bw_tnkde(
  grid,
  events_loc,
  events,
  lines,
  bw_net,
  bw_time,
  trim_bw_net,
  trim_bw_time,
  method,
  kernel_name,
  max_depth,
  div,
  tol,
  digits,
  sparse,
  verbose
)

Arguments

grid

A spatial grid to split the data within

events

A feature collection of points representing the events points

lines

A feature collection of linestrings representing the network

bw_net

The fixed kernel bandwidth for the network dimension. Can also be a vector if several bandwidth must be used.

bw_time

The fixed kernel bandwidth for the time dimension. Can also be a vector if several bandwidth must be used.

trim_bw_net

The maximum size of local bandwidths for network dimension. Must be a vector if bw_net is a vector

trim_bw_time

The maximum size of local bandwidths for time dimension. Must be a vector if bw_net is a vector

method

The method to use when calculating the NKDE

kernel_name

The name of the kernel to use

max_depth

The maximum recursion depth

div

The divisor to use for kernels

tol

A float indicating the spatial tolerance when snapping events on lines

digits

The number of digits to keep

sparse

A Boolean indicating if sparse matrix should be used

verbose

A Boolean indicating if update messages should be printed

Value

A vector with the local bandwidths, or an array if bw_time and bw_net are vectors. In that case, the array has the following dimensions : length(bw_net) X length(bw_time) X nrow(events)

Examples

#This is an internal function, no example provided

spNetwork documentation built on June 22, 2024, 9:40 a.m.