On Tue, 20 Jun 2006, Duncan Murdoch wrote: > On 6/20/2006 6:24 PM, Gerald Jansen wrote: >> I would like to store and manipulate large sets of marker genotypes >> compactly using "raw" data arrays. This works fine for vectors or >> matrices, but I run into the error shown in the example below as soon >> as I try to use 3 dimensional arrays (eg. animal x marker x allele). >> >>> a <- array(as.raw(1:6),c(2,3)) >>> a >> [,1] [,2] [,3] >> [1,] 01 03 05 >> [2,] 02 04 06 >>> a[1,] <- raw(3) >>> a >> [,1] [,2] [,3] >> [1,] 00 00 00 >> [2,] 02 04 06 >>> b <- array(as.raw(1:6),c(1,2,3)) >>> b[1,,] >> [,1] [,2] [,3] >> [1,] 01 03 05 >> [2,] 02 04 06 >>> b[1,1,] <- raw(3) >> Error: incompatible types (from raw to raw) in array subset assignment >> >> I can work around this with computed indices, but I wonder if this is >> expected behaviour. > > I don't think so. It is just an unimplemented case. > > Using raw in this way is a fairly unusual thing to do, and you've come > across a case nobody thought of implementing.
Actually, raw arrays were originally not implemented at all, so this is `expected behaviour', and you may well encounter other unimplemented areas as no one has attempted to implement them comprehensively. Please report them, but on R-devel not here. -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
