Test whether a frame holds kinematics

The aniframe_kin class is retired: it only labelled a frame as having been through calculate_kinematics(), said nothing about which columns it held, and outlived them (select(-speed) kept it). Check for the columns you need instead, e.g. "speed" %in% names(x).

Usage

is_aniframe_kin(x)

Arguments

x

An object.

Value

TRUE for an anipoint with a speed column.