Hi SK, If I understand you correctly you are trying to assign to each point of a 10x10 2D grid a normal variable with a certain dependency between the values at each grid point. Is this correct? If so, please explain the dependence structure. Do you need something like X(i,j) = f(i,j) + Z(i,j) for 1<=i,j<=10 where f is a deterministic function and Z(i,j) are independent normal variables? Or do you want to assume that Z(i,j) have a multivariate normal distribution (and can specify the covariance matrix)?
Regards, Moshe. --- sk <[EMAIL PROTECTED]> wrote: > Hi All, > I am new in R and trying to simulate random normal > 2D field with mean trend say north-south. My domain > is 10x10 grid and I am trying to use mvnorm but do > not know how to specify the domain and the mean > field. > I would appreciate any help. > Cheers, SK > > > --------------------------------- > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, > reproducible code. > ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
