Hello all, I am trying to create a grid of large number of points 4096*4096, on processing the data I am writing it into a file.
phi <- 0.5 N <- 4096 mu <- 90 sim<-grf(N*N,grid="reg",cov.model="spherical",cov.pars=c(1,phi),method="RF") sim$data <- (sim$data - mean(sim$data)) / sd(sim$data) local <- array(sim$data, dim=c(N,N)) sysvar <- local * sigma P <- mu+sysvar write.table(P,"sysv",row.names=F,col.names=F) I get the following message when I run it for 4096 points and last few values of the data set appear 0 "different grid distances detected, but the grid must have equal distances in each direction -- try gridtriple=TRUE that avoids numerical errors." The program runs fine for less number of points. I am not able to understand the error. Can anyone please help regarding this? Also, the maximum memory for the R software is 1535MBytes [ obtained by doing memory.limit(size=NA) ] Sometime I get the out of memory error by doing this procedure. Is it possible to increase the size of memory? Thanks in advance. -M. Joshi -- View this message in context: http://n4.nabble.com/Error-grid-must-have-equal-distances-in-each-direction-tp1695189p1695189.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org 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.
