[R] How to find a shift between two curves or data sets

[Sébastien Durand]

Hello,

I have a issue here!

I need to find the offset or shift between two data sets.

Each data set does not start nor end at the same time and dont even have 
the same sampling interval (which by the way isn't constant in any of 
the data set).

It must be known that the data expressed in both the data set are 
comming from the same sensor so they should be the same!

What I am looking for is a way to minimize the differences between the 
two curves by applying an x offset.

Would any body have a clue how to perform such action, I simply have no 
idea were to start.

Thank you very very much.

S.