Re: count the number of sub-list in a list
- To: mathgroup at smc.vnet.net
- Subject: [mg122260] Re: count the number of sub-list in a list
- From: Heike Gramberg <heike.gramberg at gmail.com>
- Date: Sat, 22 Oct 2011 06:09:37 -0400 (EDT)
- Delivered-to: l-mathgroup@mail-archive0.wolfram.com
- References: <201110211128.HAA18658@smc.vnet.net>
You could do something like Count[list, {Repeated[{Repeated[_?NumericQ, {3}]}, {3}]}, Infinity] Heike. On 21 Oct 2011, at 13:28, Gy Peng wrote: > Dear All, > > I have a list like: > > {{{{-0.00201671, 0.87571, 0.482832}, {-0.839678, > 0.260735, -0.476401}, {-0.543081, -0.406384, > 0.734789}}, {{-0.87571, -0.00201671, > 0.482832}, {-0.260735, -0.839678, -0.476401}, {0.406384, -0.543081, > 0.734789}}, {{0.00201671, -0.87571, > 0.482832}, {0.839678, -0.260735, -0.476401}, {0.543081, 0.406384, > 0.734789}}, {{0.87571, 0.00201671, 0.482832}, {0.260735, > 0.839678, -0.476401}, {-0.406384, 0.543081, > 0.734789}}}, {{{0.839678, -0.260735, 0.476401}, {-0.00201671, > 0.87571, 0.482832}, {-0.543081, -0.406384, 0.734789}}, {{0.260735, > 0.839678, 0.476401}, {-0.87571, -0.00201671, > 0.482832}, {0.406384, -0.543081, 0.734789}}, {{-0.839678, > 0.260735, 0.476401}, {0.00201671, -0.87571, 0.482832}, {0.543081, > 0.406384, 0.734789}}, {{-0.260735, -0.839678, 0.476401}, {0.87571, > 0.00201671, 0.482832}, {-0.406384, 0.543081, > 0.734789}}}, {{{0.00201671, -0.87571, -0.482832}, {0.839678, -0.260735, > 0.476401}, {-0.543081, -0.406384, 0.734789}}, {{0.87571, > 0.00201671, -0.482832}, {0.260735, 0.839678, > 0.476401}, {0.406384, -0.543081, 0.734789}}, {{-0.00201671, > 0.87571, -0.482832}, {-0.839678, 0.260735, 0.476401}, {0.543081, > 0.406384, > 0.734789}}, {{-0.87571, -0.00201671, -0.482832}, {-0.260735, -0.839678, > 0.476401}, {-0.406384, 0.543081, 0.734789}}}, {{{-0.839678, > 0.260735, -0.476401}, {0.00201671, -0.87571, -0.482832}, {-0.543081, > -0.406384, > 0.734789}}, {{-0.260735, -0.839678, -0.476401}, {0.87571, > 0.00201671, -0.482832}, {0.406384, -0.543081, > 0.734789}}, {{0.839678, -0.260735, -0.476401}, {-0.00201671, > 0.87571, -0.482832}, {0.543081, 0.406384, 0.734789}}, {{0.260735, > 0.839678, -0.476401}, {-0.87571, -0.00201671, -0.482832}, {-0.406384, > 0.543081, 0.734789}}}} > > I consider each of {{*, *, *}, {*, *, *}, {*,*,*}} is one single element, so > how could I count how many element in the whole list? Thank you very much! > > G
- References:
- count the number of sub-list in a list
- From: Gy Peng <hitphyopt@gmail.com>
- count the number of sub-list in a list