#' A Subset of March CPS 2015 Sample
#'
#' A dataset containing income, big class, microclass, and education of 14,358
#' male respondents from March CPS 2015
#'
#' @format A data frame with 14358 rows and 5 variables: \describe{
#'   \item{income}{personal market income, in US dollars}
#'   \item{big_class}{big class membership}
#'   \item{micro_class}{microclass membership}
#'   \item{education}{educational attainment}
#'   \item{weight}{sampling weight given by CPS}
#'   }
"cpsmarch2015"