摘要: well ,I have to say it's quite wise to trans cube into mutiple feature.Like you have y=2+3x+4x^2 +...and you choose to use y=a+3x1+4x2+....You have on 阅读全文
posted @ 2017-04-02 20:53 甜豆儿 阅读(204) 评论(0) 推荐(0)