Correct ch3. ex4.(c)-(d) answers #29
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added 2 commits
February 27, 2014 15:25
the training Error is going to be lower for the more flexible model no matter what the population regression line is (real f(x)). However the test RSS will highly depend on the type of dataset underlying model and answer to (d) is: not enough information is given b/c the form is unknown.
| @@ -37,15 +37,18 @@ matched with a wider irreducible error (Var(epsilon)). | |||
| test RSS as the overfit from training would have more error than the linear | |||
| regression. | |||
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| (c) There is not enough information to tell which training RSS would be lower | |||
| (c) Polynomial regression has lower test RSS than linear because the higher | |||
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Letter c discusses training RSS. Can you clarify this, please?
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Please fix your commit message and title to reflect your changes are for chapter 3 and not chapter 4. I've left comments inline as well. Thanks for you work! |
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Sorry, I was planning to make two different pull requests but somehow these messed up and merged into one. Let me create 2 new pull requests instead. |
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the training Error is going to be lower for the more flexible model no
matter what the population regression line is (real f(x)). However the
test RSS will highly depend on the type of dataset underlying model and
answer to (d) is: not enough information is given b/c the form is
unknown.