Rcpp alternative to the vf_utility_discrete function.
Arguments
- b_visual_field
Numeric denoting the slope of the utility function.
- relative_angles
Numeric vector containing the relative angle from each cell center to the predicted positions of the group members. Typically output of
get_angles.
Value
Numeric vector containing the utility attributed to keeping the group members within your visual field. Returns 0's if the agent does not have any additional group members.
Details
The idea of this utility function is that it doesn't matter at which angle you see a group member within the visual field, as long as you see them. This translates to a discrete added disutility whenever the group member falls inside the non-visual zone behind the agent.
See also
get_angles,
utility-agent,
vf_utility_continuous