Simulated 1D animal group locations and group sizes
This data set serves to teach the concept of modelling species that gather in groups and where the grouping behaviour depends on space.
data(toygroups)
The data are a list that contains these elements:
groups: A data.frame of group locations x and size size
df.size:IGNORE THIS
df.intensity: A data.frame with Poisson process
intensity d.lambda at locations x
df.rate: A data.frame the locations x and associated rate which
parameterized the exponential distribution from which the group sizes were drawn.
# Load the data
data("toygroups", package = "inlabru")
# The data set is a simulation of animal groups residing in a 1D space. Their
# locations in x-space are sampled from a Cox process with intensity
ggplot(toygroups$df.intensity) +
geom_line(aes(x = x, y = g.lambda))
# Adding the simulated group locations to this plot we obtain
ggplot(toygroups$df.intensity) +
geom_line(aes(x = x, y = g.lambda)) +
geom_point(data = toygroups$groups, aes(x, y = 0), pch = "|")
# Each group has a size mark attached to it.
# These group sizes are sampled from an exponential distribution
# for which the rate parameter depends on the x-coordinate
ggplot(toygroups$groups) +
geom_point(aes(x = x, y = size))
ggplot(toygroups$df.rate) +
geom_line(aes(x, rate))Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.