Calculate spatial angle along a path

Source: R/prepare_covariates.R

spatial_angle calculate spatial angle between locations, taking a dataframe as input. Spatial angle is considered as the angle between the focus point, the first location entering a given circle and the last location inside.

spatial_angle(x, coord.names = c("x", "y"), radius = NULL)

Arguments

x

data.frame with locations

coord.names

names of coordinates column in x

radius

for angle calculation. Default is median of step length.

Value

vector of spatial angle.

Author

Remi Patin, Simon Benhamou.

Examples

if (FALSE) {
data(simulmode)
spatial_angle(simulmode)
}