Re: Any simple way to flatten all but the bottom level?

*To*: mathgroup at smc.vnet.net*Subject*: [mg72392] Re: Any simple way to flatten all but the bottom level?*From*: "Roman" <rschmied at gmail.com>*Date*: Mon, 25 Dec 2006 04:52:13 -0500 (EST)*References*: <emb4dh$950$1@smc.vnet.net><emdp3f$k38$1@smc.vnet.net>

Norbert, I like your way best of all. Any ideas why Level[] allows for negative levelspecs while Flatten[] does not? The first thing I had thought of was to use Flatten[li,-1] meaning to flatten out everything but the last level. This does not compute, though. Schöni Wiehnacht! Roman. Norbert Marxer wrote: > Hello > > The following will do what you want: > > li = {{0, 0, 0}, {{0, 0, 13}, {0, 1, 9}, {0, 2, 5}, {0, 3, 1}}, {{1, 0, > 4}, {1, 1, 0}}}; > > Level[ li, {-2}] > > Best Regards > Norbert Marxer > > www.mec.li > > > dontdont at gmail.com schrieb: > > > Am I overlooking something I should be able to see? > > > > When I Nest Table I sometimes produce things like this > > > > {{0, 0, 0}, {{0, 0, 13}, {0, 1, 9}, {0, 2, 5}, {0, 3, 1}}, {{1, 0, 4}, > > {1, 1, 0}}} > > > > where each triple is actually one solution I'm looking for. > > But I don't see a simple way to transform this result into > > > > {{0, 0, 0}, {0, 0, 13}, {0, 1, 9}, {0, 2, 5}, {0, 3, 1}, {1, 0, 4}, {1, > > 1, 0}} > > > > I would have guessed there would be a way to coax Flatten to do this. > > > > Thus far I haven't found what looks like a good method. > > I have found a few awkward and bad ways but no simple clean way. > > > > Would anyone enlighten me? > > > > thanks