Re: Basic Stat Question
- To: mathgroup at smc.vnet.net
- Subject: [mg42606] Re: Basic Stat Question
- From: bobhanlon at aol.com (Bob Hanlon)
- Date: Fri, 18 Jul 2003 05:24:59 -0400 (EDT)
- References: <bf5koe$mig$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Needs["Statistics`DescriptiveStatistics`"];
Mean[Cases[l1, {x_, _?(s<#<t&)}:>x]]
Table[{age, Mean[Cases[l1, {height_, age}:>height]]},{age,18}]
Cases[l1, {___, "Boy",___}]
Bob Hanlon
In article <bf5koe$mig$1 at smc.vnet.net>, Moranresearch at aol.com wrote:
<< I have a list l1= {{xi,yi}}
I want to find the Mean xi where s <y < t
for a series of s and t.
So say I have the height of a million children and I want to know the average
height at age 1, 2, 3...18. How do I do this?
Also the data a field "Gender" how do I select the subset "Girls" or "Boys"
to analyze.