Get group centroid

Get the group's centroid (mean x and y position) over time. If specified, only compute if at least min_inds_tracked are tracked in a given time step.

Usage

get_group_centroid(xs, ys, min_inds_tracked = NULL)

Arguments

xs

N x n_times matrix giving x coordinates of each individual over time

ys

N x n_times matrix giving y coordinates of each individual over time

min_inds_tracked

if specified, sets a minimum number of individuals that must be tracked at any moment in time to compute centroid (otherwise the centroid will be NA at that time point

Value

Returns a list containing coordinates of the group centroid over time, x_centr and y_centr (both vectors of length n_times)

Author

Ariana Strandburg-Peshkin (primary author)

Reviewed by Brock