this residuals again
of depth three. Then here's the total prediction, which is
gamma times the first tree plus gamma times the second tree,
followed against the original data. The orange has more
steps now because it's a combination of two trees.

As I continue the same procedure until step five, you can
see that residual gets much smaller and it has learned most
of the variations in the data. A total linear combination of
all the trees and learning looks like this. And if I keep
doing this, then at some p