Thread: Exercise 3.4
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Old 10-07-2013, 10:54 PM
smiling_assassin smiling_assassin is offline
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Default Re: Exercise 3.4

Quote:
Originally Posted by Sweater Monkey View Post
Ahhhh, yes I see now why \epsilon^TH\epsilon doesn't have a factor of N! The trace of this matrix is just \sigma^2(d+1).

Thanks Professor

But isn't H a N \times N matrix? So trace would be N instead of d+1? I know X is N\times(d+1). What am I missing?
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