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In the exercise set 5

For the parts (a) and (b) in the 4th exercise of set 5, I have to describe the first p elements and the rest (n-p) elements of each fixed value \hat{\tilde{y}} and I have done computing it, but I am afraid if I do not have any idea of how to describe them.

And for the part (c), could anyone help a bit more for me to think further on?

Posted by Sungyeon Hong on Monday 28 October 2013 at 0:06
If you have computed the elements correctly, there should be a very simple answer to what they look like as a function of the transformed data \tilde{y}. In part c), maybe it helps to note that here "les résidus non-standardisés" refers simply to the residuals \tilde{e} = \tilde{y} - \hat{\tilde{y}}.
Posted by Mikael Kuusela on Monday 28 October 2013 at 1:25
Thanks! I'll try to move on!
Posted by Sungyeon Hong on Monday 28 October 2013 at 13:08