Page 142 - 南京医科大学自然版
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第44卷第10期
·1458 · 南 京 医 科 大 学 学 报 2024年10月
12 000
10 000
cases 8 000
Number of 6 000
4 000
2 000
0
2004 2004 2005 2006 2007 2008 2009 2009 2010 2011 2012 2013 2014 2014 2015 2016 2017 2018 2019 2019 2020 2021 2022
JAN NOV SEP JULL MAY MAR JAN NOV SEP JUL MAY MAR JAN NOV SEP JUL MAY MAR JAN NOV SEP JUL MAY
Time
图1 我国甲肝发病人数时间序列图
Figure 1 Time series of incidence of hepatitis A in China
400
200 0
Seasonal factors -200
-400
-600
-800
-1 000
1 2 3 4 5 6 7 8 9 10 11 12
Month
图2 甲肝发病数的季节因子
Figure 2 Seasonal factors of incidence of hepatitis A
0.6
0.4
Data after preprocessing -0.2 0
0.2
-0.4
-0.6
-0.8
-1.0
-1.2
2005 2005 2006 2007 2008 2009 2006 2010 2011 2012 2013 2014 2015 2015 2016 2017 2018 2019 2020 2020 2021 2022
FEB DEC OCT AUG JUN APR FEB DEC OCT AUG JUN APR FEB DEC OCT AUG JUN APR FEB DEC OCT AUG
Time
图3 平稳的时间序列图
Figure 3 Stationary time series
