[R] how to test difference in my case?

hello all, I wonder if anyone could give me a hint on which statistical technique I should use and how to carry it out in R in my case. Thanks in advance. My data is composed of two columns, the same numerical variable (continuous) from actual measurement and model prediction. My objective is to

[R] how to define w matrix in my case?

hello list, I have N agricultural fields (some of them share borders, some don't) with ph as the variable of interest. Since I want to test the spatial autocorrelation, I need to come up with the w matrix. The first and easy way that came to my brain was the binary relationship, i.e., the w matrix

Re: [R] test of spatial dependence?? - ask an ecologist?

lated. I guess this > would be a case of "autodependence." For correlation versus dependence, check > your intro stats book. > > de nada, > X'X > > Farrar > > > Xu Yuan wrote: > hello R-friends, > > I am a R beginner and try to ask a basic

[R] test of spatial dependence??

hello R-friends, I am a R beginner and try to ask a basic question: How to test the spatial dependence of a column of data? for example, I have 25 agricultural fields, and I measure the average slope (%) or pH for each field. All I have is 25 numbers. PS, could someone confirm that "spatial depe