Re: Means

*To*: mathgroup at smc.vnet.net*Subject*: [mg73944] Re: Means*From*: "Raj" <rajanikanth at gmail.com>*Date*: Sat, 3 Mar 2007 01:15:07 -0500 (EST)*References*: <es9295$3na$1@smc.vnet.net>

On Mar 2, 4:37 am, "JGBo... at gmail.com" <JGBo... at gmail.com> wrote: > I was wondering if anyone knew how to take the mean of only half of a > paired order. I have a table of 3000 pairs and want to take the > average of the last half of the last number in the pair. I do this by > N[Mean[Map[Last, list]]] is there any way to map to the last half of > the list. Thanks N[Mean[Last /@ Part[list, Range[Length[list]/2, Length[list]]]]] Cheers, Raj