  This paper gives the classification of the Whittaker unitary dual for affine
graded Hecke algebras of type E. By the Iwahori-Matsumoto involution, this is
equivalent also to the classification of the spherical unitary dual for type E.
This work completes the classification of the Whittaker Iwahori-spherical
unitary dual, or equivalently, the spherical unitary dual, of split linear
algebraic p-adic groups.
