Author: Yun-ting He; Hao He; Jing Zhai; Xiao-jin Wang; Bing-shun Wang
Title: Moving-average based index to timely evaluate the current epidemic situation after COVID-19 outbreak Document date: 2020_3_26
ID: bcde0u7u_11
Snippet: Because the inclusion criteria for the daily new confirmed cases in Hubei Province has changed for several times, we firstly added 1 to the actual observation, and then performed a natural logarithmic transformation to make the index more tolerant of outliers. Moreover, the index after data transformation has better stability. After data transformation, we get the natural logarithm of actual observation as LNj:.....
Document: Because the inclusion criteria for the daily new confirmed cases in Hubei Province has changed for several times, we firstly added 1 to the actual observation, and then performed a natural logarithmic transformation to make the index more tolerant of outliers. Moreover, the index after data transformation has better stability. After data transformation, we get the natural logarithm of actual observation as LNj:
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