ltierney/Rpkg-proftools — pull request #1 by joshuaulrich (2014-10-19 13:33:52+00:00)
Title: Fix reachability calc when edge matrix is large

The resulting `m` in `findReachableMat` could contain Inf and/or NaN if the input `m` is large enough. Adding the `sign` call preserves the locations but removes the magnitude.