Try this: ab <- array(rnorm(3*3), dim = c(3,3,3)) ab[,,-1] <- NA ab[ , ,tail(seq(dim(ab)[3]), 2)] <- ab[, , 1]
On Wed, Oct 6, 2010 at 12:49 PM, Farida Mostajabi <farida...@gmail.com>wrote: > Dear list, > > Does anyone know if there is a function that replaces a matrix of "NA"s in > an array with the previous matrix with numbers? For example, I have an > array > > ab <- array(dim=c(3,3,15),dimnames=list(rows=1:3,cols=1:3,dim=times)) . > > Select out put from the array is: > > , , dim = 0.478356969557745 > cols > rows 1 2 3 > 1 0.4921053 0 0.5078947 > 2 0.0000000 0 1.0000000 > 3 0.0000000 0 1.0000000 > > , , dim = 0.525800177828904 > cols > rows 1 2 3 > 1 NA NA NA > 2 NA NA NA > 3 NA NA NA > > , , dim = 0.60831082579661 > cols > rows 1 2 3 > 1 NA NA NA > 2 NA NA NA > 3 NA NA NA > > I would like to replace the last two matrices in the array with the matrix > from a[,,dim = 0.478356969557745] so that the output looks like this: > > , , dim = 0.478356969557745 > cols > rows 1 2 3 > 1 0.4921053 0 0.5078947 > 2 0.0000000 0 1.0000000 > 3 0.0000000 0 1.0000000 > > , , dim = 0.525800177828904 > cols > rows 1 2 3 > 1 0.4921053 0 0.5078947 > 2 0.0000000 0 1.0000000 > 3 0.0000000 0 1.0000000 > > , , dim = 0.60831082579661 > cols > rows 1 2 3 > 1 0.4921053 0 0.5078947 > 2 0.0000000 0 1.0000000 > 3 0.0000000 0 1.0000000 > > Any help would be greatly appreciated! > > Thanks! > > Nicole > > [[alternative HTML version deleted]] > > ______________________________________________ > 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. > -- Henrique Dallazuanna Curitiba-Paraná-Brasil 25° 25' 40" S 49° 16' 22" O [[alternative HTML version deleted]]
______________________________________________ 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.
