density.list {trajectories} | R Documentation |
Kernel estimate of intensity of trajectory pattern
Description
Estimating the intensity of a list of tracks.
Usage
## S3 method for class 'list'
density(x, timestamp,...)
Arguments
x |
a list of "Track" objects, an object of class "Tracks" or "TracksCollection" |
timestamp |
based on secs, mins, ... |
... |
passed to arguments of density.ppp |
Details
This estimate the average intensity function of moving objects over time. Bandwidth selection methods such as bw.diggle, bw.scott and bw.ppl can be passed to this density.list.
Value
an image of class "im".
Author(s)
Mohammad Mehdi Moradi <moradi@uji.es>
See Also
Examples
if (require(spatstat.explore)) {
X <- list()
for(i in 1:10){
m <- matrix(c(0,10,0,10),nrow=2,byrow = TRUE)
X[[i]] <- rTrack(bbox = m,transform = TRUE)
}
density(X, timestamp = "180 secs")
}
[Package trajectories version 0.2-8 Index]