Chen, Zhenlong
Sang, Liheng
Hao, Xiaozhen
Funding for this research was provided by:
Humanities and Social Sciences Research Project of Ministry of Education (18YJA910001)
National Statistical Science Research Project of China (2017LY51)
Zhejiang Provincial Key Research Project of Statistics (18TJZZ08)
National Natural Science Foundation of China (11371321)
Natural Science Foundation of Universities of Anhui Province (KJ2016A527)
Article History
Received: 1 May 2018
Accepted: 14 November 2018
First Online: 23 November 2018
Change Date: 24 January 2019
Change Type: Correction
Change Details: In the publication of this article [1], there are five errors. They have now been corrected in this correction.
Competing interests
: The authors declare that they have no competing interests.