Re: [R-sig-Geo] The sum.w Field in SDF

2007-07-18 Thread Roger Bivand
On Wed, 18 Jul 2007, Ryan Rosario wrote: > I understand that the sum.w field is the sum of the weights associated with > a particular observation/location. This is apparently a follow-up to a question on 15 July about robust GWR. GWR is seriously affected by multicollinearity anyway (see Wheeler

[R-sig-Geo] The sum.w Field in SDF

2007-07-18 Thread Ryan Rosario
I understand that the sum.w field is the sum of the weights associated with a particular observation/location. But what is this sum taken over? Is there a way to access the individual weights before they are summed? Basically, I need a single weight for each observation (not a sum), so that I can