论文标题
自2015年以来，COVID 19和对巴西每月总死亡人数的小波分析
Covid 19 and A Wavelet Analysis of the Total Deaths per Month in Brazil since 2015
论文作者
论文摘要
我们研究了自2015年以来使用小波变换的每月死亡人数总数的历史系列，以评估Covid-19-19的大流行是否在该系列中引起任何变化点。我们的小波分析表明，该系列在差异中具有变化点。但是，它发生在大流行开始之前。
We investigate the historical series of the total number of deaths per month in Brazil since 2015 using the wavelet transform, in order to assess whether the COVID-19 pandemic caused any change point in that series. Our wavelet analysis shows that the series has a change point in the variance. However, it occurred long before the pandemic began.
