Re: bug in RandomChoice if weight is zero?

*To*: mathgroup at smc.vnet.net*Subject*: [mg106198] Re: bug in RandomChoice if weight is zero?*From*: Matthias <greiff at mac.com>*Date*: Tue, 5 Jan 2010 01:42:47 -0500 (EST)*References*: <200912290617.BAA02582@smc.vnet.net> <hhhmsp$og2$1@smc.vnet.net>

Another interesting thing about RandomSample is the following: In[171]:= RandomSample[{0, 0, 0, 1, 0} -> {1, 2, 3, 4, 5}, 1] RandomSample[{0, 0, 0, 1, 0} -> {1, 2, 3, 4, 5}, 2] RandomSample[{0, 0, 0, 1, 0} -> {1, 2, 3, 4, 5}, 3] RandomSample[{0, 0, 0, 1, 0} -> {1, 2, 3, 4, 5}, 5] Out[171]= {4} Out[172]= {4, 5} Out[173]= {4, 5, 5} Out[174]= {4, 5, 5, 5, 5} Although the fifth element has weight zero it is selected multiple times? Is that only in my version of Mathematica (Version 7.0.1.0 on Max OS X 10.6.2)? Of course there are ways to work around that but, as DrMajorBob, already pointed out, this contradicts the documentation.