R/mobility.R

In HDSinRdata: Data for the 'Mastering Health Data Science Using R' Online Textbook

#' Data for Mobility Changes in Response to COVID-19
#'
#' 2020 mobility statistics at the state level from Descartes Labs.
#'
#' @format A data frame with 9,333 rows and 5 variables:
#' \describe{
#'   \item{state}{State (originally admin1)}
#'   \item{date}{Date in YYYY-MM-DD format}
#'   \item{samples}{The number of samples observed in the state on that date
#'   (summed across counties)}
#'   \item{m50}{The median of the max-distance mobility (representing the
#'   distance a typical member of a given population moves in a day) for all
#'   samples in a county, averaged across counties.}
#'   \item{m50_index}{The percent of normal m50 in the region, with normal m50
#'   defined during 2020-02-17 to 2020-03-07, averaged across counties.}
#' }
#'
#' Note from the data website: "Data for 2020-04-20, 2020-05-29, 2020-10-08,
#' 2020-12-11 through 2020-12-18, 2021-01-08 through 2021-01-14, 2021-04-07,
#' 2021-04-12 and 2021-04-21 to present did not meet quality control standards,
#' and was not released."
#'
#' @source Data was obtained from Descartes Labs
#' \url{https://descarteslabs.com}
#'
#' Warren, Michael S. & Skillman, Samuel W. "Mobility Changes in Response to
#' COVID-19". arXiv:2003.14228 [cs.SI], Mar. 2020. arxiv.org/abs/2003.14228
#'
#' \url{https://github.com/descarteslabs/DL-COVID-19}
"mobility"