R/pm25_dat.R

In SpTe2M: Nonparametric Modeling and Monitoring of Spatio-Temporal Data

#' @title PM2.5 concentration data
#' @name pm25_dat
#' @docType data
#' @author  Kai Yang \email{kayang@mcw.edu} and Peihua Qiu
#' @description 
#' Daily PM2.5 concentration levels at 183 major cities in China during years 
#' 2014-2016. This dataset was collected by the China National Environmental 
#' Monitoring Centre (CNEMC). It can be downloaded directly from the CNEMC 
#' offical web page. The PM2.5 dataset used here contains 6 variables, including 
#' \code{Year}, \code{Time}, \code{Long} (longitude), \code{Lat} (latitude), 
#' \code{City}, and \code{PM2.5}.
#' @format 
#' A dataframe containing \eqn{N=200,385} observations of 6 variables.
#' @keywords pm25_dat
#' @usage data(pm25_dat)
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