“I believe the paper should be streamlined, in the sense of making the motivation, the method and the results more immediately and more completely visible to the reader.”还有“All categorical variables should be recoded in as many dummies as there are realizations of the variables”. 第一次投稿不是很明白，请各位大牛帮忙看看这是什么意思，要求怎么修改，谢谢！
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