select_egoalter(graph, adopt, period = NULL)netdiffuseR-graphs).toa_mat.timeidselect_a_01, ..., select_a_16select_d_01, ..., select_d_16select_s_01, ..., select_s_16The first two Yes/No columns represent Ego's adoption of the innovation in $t-1$ and $t$; while the first two Yes/No rows represent Alter's adoption of the innovation in $t-1$ and t respectively. So for example, number 4 means that while neither of the two had addopted the innovation in $t-1$, both have in $t$. At the same time, number 12 means that ego adopted the innovation in $t$, but alter had already adopted in $t-1$ (so it has it in both, $t$ and $t-1$).