Re: Random often fails to return a result

*To*: mathgroup at smc.vnet.net*Subject*: [mg30530] Re: Random often fails to return a result*From*: "Allan Hayes" <hay at haystack.demon.co.uk>*Date*: Tue, 28 Aug 2001 04:54:35 -0400 (EDT)*References*: <9m6taj$l8a$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Todd, Random[Integer,n] gives integers between 0 and 1, and, for example {1,2,3}[[0]] List To avoid this use Random[Integer,{1,n}], which gives integers between 1 and n. -- Allan --------------------- Allan Hayes Mathematica Training and Consulting Leicester UK www.haystack.demon.co.uk hay at haystack.demon.co.uk Voice: +44 (0)116 271 4198 Fax: +44 (0)870 164 0565 "Todd Flach" <Todd.Flach at dnv.com> wrote in message news:9m6taj$l8a$1 at smc.vnet.net... > I have a non-repeatable error that I wonder if someone can explain. I > am using Random to extract elements of three lists. The Table command > shows essentially how I do this. The output looks OK except sublist 9 > has an element called List instead of returning a value. This > extraction error is occurring randomly. I have examined the three > lists to check if there are any "holes". There are no holes. > > Thanks in advance for any advice! > > Table[{starts[[Random[Integer, 100]]], investmentEnds[[Random[Integer, > 100]]], > investmentLevels[[Random[Integer, 100]]]}, {10} ] > > {{1.16922, 2.25868, 8.36433}, {2.10013, 5.63926, 8.81981}, {3.85993, > 3.03134, > 3.51252}, {0.0660932, 2.43429, 9.08009}, {0.547191, 2.05618, > 10.5471}, {0.512352, 0.868572, 11.7632}, {0.223057, 5.59492, > 4.31098}, {2.52853, 2.85432, 8.77673}, {3.85993, 2.25868, > List}, {0.179792, 1.03656, 9.36414}} >