[R] naming rows/columns in 'array of matrices' | solved

[peter dalgaard]

> On 30 Jan 2015, at 20:34 , Evan Cooch <evan.cooch at gmail.com> wrote:
> 
> The (obvious, after the fact) solution at the bottom. D'oh...
> 
[snip]
> Forgot I was dealing with a multi-dimensional array, not a list. So, following works fine. I'm sure there are better approaches (where 'better' is either 'cooler', or 'more flexible'), but for the moment...)
> 
> P <- array(0, c(2,2,2),dimnames=list(c("live","dead"),c("old","young"),NULL))
> 
> P[,,1] <- matrix(c(1,2,3,4),2,2,byrow=T);
> P[,,2] <- matrix(c(5,6,7,8),2,2,byrow=T);
> 
> print(P);
> 

Just for completeness, this also works:

> P <- array(0, c(2,2,2)) 
> P[,,1] <- matrix(c(1,2,3,4),2,2,byrow=T);
> P[,,2] <- matrix(c(5,6,7,8),2,2,byrow=T);

> dimnames(P)[[1]] <- c("live","dead")
> dimnames(P)[[2]] <- c("live","dead")


-- 
Peter Dalgaard, Professor,
Center for Statistics, Copenhagen Business School
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