variogram
- To: mathgroup at smc.vnet.net
- Subject: [mg42000] variogram
- From: civnrn at hotmail.com (Rees)
- Date: Mon, 16 Jun 2003 03:57:10 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Hi, Given the following dataset: x y T 2.9 0.876 0.138 2.5 0.188 0.214 4.7 2.716 2.119 4.2 2.717 2.685 4.2 3.739 0.031 2.1 1.534 1.534 2.4 2.078 0.267 5.8 3.324 1.670 I want to formulate the variogram: ie the square difference 1/2[T(x,y)-T(x,y)']**2 for all measurement pairs. For the above 8 measurements there are (n(n-1))/2 = 28 such pairs. so for T=0.138, the first step is to compute: 0.138-0.214 then 0.138-2.119 then 0.138-2.685....then 0.138-1.670 the next step is: 0.214-2.119 then 0.214-2.685 etc [BUT NOT 0.214-0.138] Is it possible to program this in mathematica? Thanks in advance. Cheers Rees
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