[R] multi-dimension array of raw
Duncan Murdoch
murdoch at stats.uwo.ca
Wed Jun 21 05:23:17 CEST 2006
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.
This is now fixed in r-devel and r-patched.
Duncan Murdoch
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