R Under development (unstable) (2025-09-17 r88852 ucrt) -- "Unsuffered Consequences"
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> require(houba)
Loading required package: houba
> 
> a <- matrix(1:6, 2, 3)
> A <- as.mmatrix(a)
> stopifnot( all(apply(A, 1, var) == 4) ) 
> stopifnot( all(apply(A, 2, var) == 0.5) )
> 
> houba(max.size = 0)
$max.size
[1] 0

> B <- apply(A, 1, var)
> stopifnot( is(B, "mvector") )
> stopifnot( all(as.vector(B) == 4) ) 
> 
> B <- apply(A, 2, var)
> stopifnot( is(B, "mvector") )
> stopifnot( all(as.vector(B) == 0.5) ) 
> 
> proc.time()
   user  system elapsed 
   0.46    0.06    0.50