广告数据 现行回归

线性回归教学用例数据，广告投放对销售额的影响，
微信公众号广告投放金额（由于篇幅限制，下文用“微信”代指）、微博广告投放金额（下文用“微博”代指）、其他类型广告投放金额（用“其他”代指），这3个字段是特征（也是开店的人可以调整的）。
■商品销售额（用“销售额”代指）是标签（也是开店的人希望去预测的）。

This is a linear regression teaching case dataset focusing on the impact of advertising spending on sales revenue.
The features (adjustable by store operators) include three fields: WeChat official account advertising expenditure (referred to as "WeChat" hereinafter for brevity due to space constraints), microblog advertising expenditure (referred to as "Microblog" hereinafter), and other types of advertising expenditure (referred to as "Others" hereinafter).
■ The target variable (which store operators wish to predict) is commodity sales revenue, referred to as "Sales" hereinafter.