R/Fly_ball.R

In dtkaplan/mosaicUSAFA: Functions, data, and tutorials for the Math 141Z course

#' Trajectory of a fly ball in baseball
#'
#' The trajectory of a fly ball as calculated by a sophisticated
#' model involving drag, spin, and such. The physics and mathematics are described
#' at \href{http://baseball.physics.illinois.edu/TrajectoryAnalysis.pdf}
#'
#' @details The ball has a mass of 5.125 ounces and a circumference of 9.125 inches
#' The speed off the bat was 103 mph at a launch angle of 27.5 degrees from
#' the horizontal. The ball was hit with backspin at 2500 rpm by a right-handed
#' batter. Ambient temperature 70 deg F with a relative humidity of 50% and a
#' barometric pressure of 29.92 inHg. The field was at an elevation of 15 feet.
#'
#'
#'
#'
#' @source \href{http://baseball.physics.illinois.edu/TrajectoryCalculator-new-3D.xlsx}
#'
#'  @format
#'   A data frame with 552 rows.
#'  \itemize {
#'   \item{\code{t}} time (seconds). Runs from 0 to 5.51 s
#'   \item{\code{y}} horizontal position (feet)
#'   \item{\code{z}} vertical position (feet)
#' }
#'