Compute R sqaured after linear transformation

送交者: HunHunSheng 于 2007-11-22, 12:07:47:

回答: 为什么对non-linear regression， R square 没有意义？由老中乙号于 2007-11-22, 11:45:30:

If relationship between y and x tend to be y=x^2.
Then it is meaningless to compute R sqare directly.
But ley z=x^2. Then Y and z will tend to have a linear relationship. Then R sqaured computed from y and z is
meaningful

所有跟贴:

y=x^2 is still linear in the sense of beta, not the curve - xj (29 bytes) 2007-11-22, 13:24:06 (185698)
originalGaussianerror after transform maynot thus ms maynotmake sense (无内容) - 短江学者 (0 bytes) 2007-11-22, 12:23:11 (185671)
- 反正本来实际例子就是靠近似.理想的高斯分布本来不存在 - HunHunSheng (42 bytes) 2007-11-22, 12:37:15 (185682)

加跟贴