Package index • animetric

Calculate

These functions take your aniframe as input and give you results in return.

These functions return a single value per group, or a full summary.

summarise_aniframe() summarize_aniframe(): Summarise an aniframe
summarise_kinematics() summarize_kinematics(): Calculate kinematic summary statistics
summarise_tortuosity() summarize_tortuosity(): Calculate tortuosity summary statistics
summarise_keypoints(): Summarize keypoint data

These functions are cogs used in calculate_ and summarise_ functions.

compute_gradient(): Compute numerical derivatives on possibly uneven grids
differentiate(): Differentiate a numeric series (optionally repeatedly)
compute_straightness(): Compute straightness index from precomputed vectors
compute_sinuosity(): Compute sinuosity index from precomputed vectors
compute_emax(): Compute E_max (maximum expected displacement) from pre‑computed vectors
compute_centroid(): Compute centroid from keypoints
compute_nnd(): Compute nearest neighbour distances for a single time point