Short sprint performance is one of the most distinguishable and admired physical traits in sports. sprints have been modeled using mono-exponential equation that involves two parameters: (1) maximum sprinting speed (MSS) (2) relative acceleration (TAU). The common methods to assess short are with a radar gun or timing gates. In this paper, we: 1) provide shorts package can model data from these...

Splines are important tools for the flexible modeling of curves and surfaces in regression analyses. Functions constructing spline basis functions available R through base package splines. When to be modeled have known characteristics monotonicity or curvature, more efficient statistical inferences possible with shape-restricted Such splines, however, not The splines2 provides easy-to-use funct...