How does Vassar recompute high school GPA?

<p>Someone help. I'm trying to compare myself academically.
Do they strip away everything that isn't a "core" class? Do they give any numerical credit for AP and honors classes?
I'm speaking in terms of the averages that they post.</p>

<p>The one thing I remember from our tour was they said they don’t use freshman year grades.</p>

<p>^Oh thank God! That was my worst year when I didn’t care about good grades :p</p>