pm25_dat

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>, <code>Time</code>, <code>Long</code> (longitude), <code>Lat</code> (latitude), 
<code>City</code>, and <code>PM2.5</code>.

Spatio-temporal data have become increasingly popular in many research fields. Such data often have complex structures that are difficult to describe and estimate. This package provides reliable tools for modeling complicated spatio-temporal data. It also includes tools of online process monitoring to detect possible change-points in a spatio-temporal process over time. More specifically, the package implements the spatio-temporal mean estimation procedure described in Yang and Qiu (2018) <doi:10.1002/sim.7622>, the spatio-temporal covariance estimation procedure discussed in Yang and Qiu (2019) <doi:10.1002/sim.8315>, the three-step method for the joint estimation of spatio-temporal mean and covariance functions suggested by Yang and Qiu (2022) <doi:10.1007/s10463-021-00787-2>, the spatio-temporal disease surveillance method discussed in Qiu and Yang (2021) <doi:10.1002/sim.9150> that can accommodate the covariate effect, the spatial-LASSO-based process monitoring method proposed by Qiu and Yang (2023) <doi:10.1080/00224065.2022.2081104>, and the online spatio-temporal disease surveillance method described in Yang and Qiu (2020) <doi:10.1080/24725854.2019.1696496>.

Kai Yang

SpTe2M

Nonparametric Modeling and Monitoring of Spatio-Temporal Data

Peihua Qiu

pm25_dat function

A dataframe containing \(N=200,385\) observations of 6 variables.

Format

Kai Yang <a href="/link/kayang%40mcw.edu?package=SpTe2M&version=1.0.3" data-mini-rdoc="SpTe2M::kayang@mcw.edu">kayang@mcw.edu</a> and Peihua Qiu

Author

PM2.5 concentration data — pm25_dat

Kai Yang <a href='mailto:kayang@mcw.edu'>kayang@mcw.edu</a> and Peihua Qiu

pm25_dat: PM2.5 concentration data

Description

Usage

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Format

Author