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st: letter values [was: annoying boss]
First, please do use sensible titles for your postings.
Many people delete postings purely on the basis of
titles. You reduce the chance that you will get
answered if you use silly or cryptic titles.
Second, this is precisely what -lv- does for you.
It calculates midsummaries and these spreads.
> say I have two columns :
> in first column 24 years numerated
> in second column average temperatures ->
> i temp
> 1 7.9
> 2 8.1
> 3 8.8
> 4 .... and so on/temp in ascending order
> I know about index order : x1,L x2,L x3,L
> x3,U x2,U x1,U
> how to compute midsummaries and
> most quickly ????
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