MathGroup Archive 1993

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Lists and Fitting multiple lines to data

I am having a difficult time dealing with lists.
I have a list of data :


I want to do some operations on the second column only.
Such as +1, Sin[], etc to each element in the second
column.  I admit I only have a rudimentary knowledge
of Map, Apply, Transpose, and Flatten.  Any help would 
be appreciated.

Also, I have data that needs several fitting equations.
One will be Exp[a x -b], another Exp[-c x+d], and the
last would be a polynomial.  Then I would like to Plot
the data and fitting equations in there respective 
regions at the same time.  I have seen something
like this before, but I can't remember where.




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