On Fri, 2004-11-19 at 16:44 -0600, hadley wickham wrote:
Perhaps I'm missing something, but isn't the maximum of the cumulative sum simply the last value, ie. sum(x)?
Hadley
Indeed!
And...going back to Sean's original post he did write:
"I just need max(Y)."
Thus, a whole group of us (independently) managed to over-engineer the
solution.
Presuming of course, that Sean does not require the entire cumulative sum vector for other purposes.
I wonder what that says about human cognition....
Thanks,
Marc <Cleaning his bi-focals...>
I have forgotten the details of the original question but it seems to me that if the elements of x could be both positive and negative then the maximum of the cumulative sum doesn't have to be the last sum.
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