[R] two connected graphs

[Robin Hankin]

Hi

I have two datasets, A and B, consisting of two columns of numbers
representing x and y coordinates.

They have 10 and 6 rows respectively.

I want to plot two scattergraphs, one above the other.

The lower graph to contain A (10 points) and the upper
graph to contain B (six points).

The x-axes of the two graphs must line up.

I then want to draw straight lines that connect points
of  B to a particular point (or points)  of A.

How do I do this?


--
Robin Hankin
Uncertainty Analyst
National Oceanography Centre, Southampton
European Way, Southampton SO14 3ZH, UK
  tel  023-8059-7743