On Jul 2, 2009, at 11:24 PM, David Winsemius wrote:
On Jul 2, 2009, at 10:20 PM, Ivo Shterev wrote:
a = list(diag(3), diag(3), diag(3))
a = list(diag(3), diag(3), diag(3))
> sum(unlist(a))
[1] 9
Also:
> sum(sapply(a,I))
[1] 9
David Winsemius, MD
Heritage Laboratories
West Hartford, CT
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