  Recent observations have revealed the eccentricity and inclination
distributions of close-in super-Earths. These distributions have the potential
to constrain their formation processes. In the in-situ formation scenario, the
eccentricities and inclinations of planets are determined by gravitational
scattering and collisions between protoplanets on the giant impact stage. We
investigate the effect of the initial eccentricities and inclinations of
protoplanets on the formation of close-in super-Earths. We perform $N$-body
simulations of protoplanets in gas-free disks, changing the initial
eccentricities and inclinations systematically. We find that while the
eccentricities of protoplanets are well relaxed through their evolution, the
inclinations are not. When the initial inclinations are small, they are not
generally pumped up since scattering is less effective and collisions occur
immediately after orbital crossing. On the other hand, when the initial
inclinations are large, they tend to be kept large since collisional damping is
less effective. Not only the resultant inclinations of planets, but also their
number, eccentricities, angular momentum deficit, and orbital separations are
affected by the initial inclinations of protoplanets.
