[R] shortest distance between two point pattern

[huber]

PS:

> ...For larger problems, there are more efficient nearest neighbor 
> search algorithms, but I am not aware whether or where in R.

The 'but' subclause was wrong, one place to look at is the "yaImpute" 
package and also this thread:
http://tolstoy.newcastle.edu.au/R/e4/devel/08/01/0158.html

  Best wishes
   Wolfgang

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  Wolfgang Huber  EBI/EMBL  Cambridge UK  http://www.ebi.ac.uk/huber