[R] converting a matrix into a fn
dwinsemius at comcast.net
Tue Aug 25 18:05:48 CEST 2009
On Aug 25, 2009, at 8:45 AM, maram salem wrote:
> Dear All,
> I have a matrix m of the form
> [,1] [,2]
> [1,] 9072.302 0.00000004462366
> [2,] 9086.811 0.00000005628169
> [3,] 9101.320 0.00000007126347
> [4,] 9115.830 0.00000008986976
> [5,] 9130.339 0.00000011260000
> [6,] 9144.848 0.00000014018405
> [7,] 9159.357 0.00000017344229
> [8,] 9173.866 0.00000021363563
> [9,] 9188.375 0.00000026389996
> [10,] 9202.884 0.00000032406678
> where the first col is my variable x and the second is f(x). I've
> obtained this from the result of a kernel density estimate so I
> don't know the explict form of f(x) .
> For some reason i want to integerate f(x) over a certain range using
> integrate( ). So i want R to consider the above matrix as a function
> where the first col is the argument x and the second is the
> realization f(x).
> I've tried as.function and vectorize but it didn't work out.
> Could u help me do it?
> [[alternative HTML version deleted]]
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David Winsemius, MD
West Hartford, CT
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