Is an implementation of Iterative Closest Point (ICP) available in R?

Question

Does someone have an implementation of Iterative Closest Point (ICP) algorithm for two dimensions (2D) in R?

Here is an attempt in c#
Iterative Closest Point Implementation
Here is a more general question
iterative closest point library

This is to match two sets of points through translation and scaling.

Answer 1

Spacedman's comment is probably best. You might also take a look at http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=12627&objectType=file for a matlab implementation. Assuming it works ok, translating Matlab to R code is relatively easy.

Answer 2

This is somewhat of an answer in the form of a non-answer.

There are many variants of ICP. The design choices are at least partially organized by the late 90's Ph.D. work of Pulli and by Rusinkiewicz & Levoy. If you're going to be using ICP for anything remotely important (translation: "more than just a class assignment"), you should understand the tradeoffs.

Thus, it's probably best to take one of the existing implementations and port it to R.