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R 语言 2010.1至2021.12艾滋病每月发病人数 时间序列分析
2022-08-09 12:42:00 【Mrrunsen】
建立ARIMA模型的步骤包括:
确保时序是平稳的;
找到一个(或几个)合理的模型(即选定可能的p值和q值);
拟合模型;
从统计假设和预测准确性等角度评估模型;
预测
接下来,我们将依次应用这几个步骤,对 艾滋病每月发病人数 拟合ARIMA模型。
library(readxl)
data = read_excel("2010.1至2021.12艾滋病每月发病人数.xlsx")
y = data[,2]
library(forecast)
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