Package index • animetric

Add

These return your aniframe with something added: columns of per-row measures, a declared orientation, or a derived point.

add_kinematics(): Add kinematic measures to trajectory data
add_tortuosity(): Add tortuosity measures over sliding windows
add_nnd(): Add the distance to the n-th nearest neighbour
add_orientation() experimental: Declare orientation from the positions of points
add_point(): Add a derived point to an anipoint

Summarise

One row per group: the distribution of per-row measures with summarise_aniframe(), or the geometry of each whole trajectory with summarise_path().

summarise_aniframe() summarize_aniframe() experimental: Summarise the time series of an aniframe
summarise_path() summarize_path(): Summarise each trajectory as a whole

Compute

These functions are cogs used in the add_ 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_min_step() experimental: The minimum step "auto" chooses for each trajectory
compute_point(): Compute a derived point of an identity level
compute_nnd(): Compute nearest neighbour distances within one group

Deprecated

Kept for one release; see each page for its replacement.

calculate_kinematics() deprecated: Calculate kinematic measures from trajectory data
calculate_tortuosity() deprecated: Calculate tortuosity metrics over sliding windows
calculate_nnd() deprecated: Calculate distance to the n-th nearest neighbour
summarise_kinematics() summarize_kinematics() deprecated: Calculate kinematic summary statistics
summarise_tortuosity() summarize_tortuosity() deprecated: Calculate tortuosity summary statistics
add_centroid() deprecated: Add a centroid to an anipoint
compute_centroid() deprecated: Compute the centroid of an identity level
is_aniframe_kin() deprecated: Test whether a frame holds kinematics