[R] is this matrix symmetric

[P Ehlers]

Jun Shen wrote:
> Hi,
> 
> I have this symmetric matrix, at least I think so.
> 
>      col1  col2  col3
> [1,] 0.20 0.05 0.06
> [2,] 0.05 0.10 0.03
> [3,] 0.06 0.03 0.08
> 
> or
> 
> structure(c(0.2, 0.05, 0.06, 0.05, 0.1, 0.03, 0.06, 0.03, 0.08
> ), .Dim = c(3L, 3L), .Dimnames = list(NULL, c("var1", "var2",
> "var3")))
> 
> But isSymmetric() doesn't agree. Any comment? I am on R 2.10.1 Thanks.
> 
> Jun
> 

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   -Peter Ehlers