Re 10.0.1 under Windows 7.
The SparseArray documentation says entries need not be numeric. Why then do I get the error message below? Here the main diagonal entries are lists (off-diagonal entries will be the default zero).
Thanks.
In[129]:= SparseArray@{{1, 1} -> {"a", "b"}, {2, 2} -> {"c", "d", "e"}}
During evaluation of In[129]:= SparseArray::posr: The left-hand side of {2,2}->{c,d,e} in {{1,1}->{a,b},{2,2}->{c,d,e}} is not a position or a pattern that will match the position of an element in an array with depth 1. >>
