September 2022
Intermediate to advanced
549 pages
11h 27m
Chinese
Content preview from 基于AWS的数据科学实践
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166
｜
第
5
章
结果如下所示：
month avg_rating
1 4.277998926134835
2 4.267851231035101
3 4.261042822856084
4 4.247727865199895
5 4.239633709986397
6 4.235766635971452
7 4.230284081689972
8 4.231862792031927
We notice that we only have data until August 2015. We can also spot that the average
rating is slowly declining, as we can easily see in Figure 5-10. While we don’t have a
precise explanation, this decline was likely investigated in 2015.
Figure 5-10. Average star rating throughout 2015 across all product categories.
Now let’s explore whether this is due to a certain product category dropping drasti‐
cally in customer satisfaction or is more of a trend across all categories. ...
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