Integration in R
On Jan 8, 2013, at 1:31 PM, David Winsemius wrote:
On Jan 8, 2013, at 1:07 PM, Berend Hasselman wrote:
On 08-01-2013, at 22:00, Berend Hasselman <bhh at xs4all.nl> wrote:
?... David implemented the condition by multiplying by x[1]<x[2] which in a numeric context is 0 when x[1]<x[2] en 1 when x[1]>=x[2].
OOPS!! Reverse the 0 and the 1 in that sentence (TRUE becomes 1 and FALSE becomes 0)
I didn't worry about which direction was used for the inequality in this case because of consideration of symmetry. (Thinking about it now, I still think I managed to choose the correct direction.) Obviously such a cavalier attitude should not be carried over to the general situation.
I hit the send button by mistake. (I originally misread Berend's correction.) I'm only posting this to make clear that it was myself, and not Berend, that I was accusing of having been cavalier.
David Winsemius, MD Alameda, CA, USA