tkde: Temporal Kernel density estimate

In spNetwork: Spatial Analysis on Network

Temporal Kernel density estimate

Description

Calculate the Temporal kernel density estimate based on sampling points in time and events

Usage

tkde(events, w, samples, bw, kernel_name, adaptive = FALSE)

Arguments

events	A numeric vector representing the moments of occurrence of events
w	The weight of the events
samples	A numeric vector representing the moments to sample
bw	A float, the bandwidth to use
kernel_name	The name of the kernel to use
adaptive	Boolean

Value

A numeric vector with the density values at the requested timestamps

Examples

data(bike_accidents)
bike_accidents$Date <- as.POSIXct(bike_accidents$Date, format = "%Y/%m/%d")
start <- min(bike_accidents$Date)
diff <- as.integer(difftime(bike_accidents$Date , start, units = "days"))
density <- tkde(diff, rep(1,length(diff)), seq(0,max(diff),1), 2, "quartic")

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