Comments 324

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March-April 2016: The class goes well. 150 students signed in this class this semester. some of them are doing very well.

Ren Feng


Most of them use the DEf01 Dow Eff, cause their is the dummy variable function. And others of better skills use DEf01c, cause they can deal with the dummy variables with add new variable.


Ren Feng - Duran Bell