Morphometric Data - An Invariant Approach to Statistical Analysis of Shapes - page 43

2.5 Summary
In this first part of Chapter 2 , we have provided an outline of the types
of data that could be used in morphometric analysis, a detailed expla-
nation of the types of landmarks that could be identified for analysis,
a summary of our experience with particular devices that can be used
to collect landmark coordinate data, and guidance on potential sources
of error. We stress that measurement error studies should always be
done before analysis of data and that those measurement error studies
must be designed with the data collection instrument in mind. In part
2 of this chapter, we provide a more thorough treatment of measure-
ment error studies for landmark data. We provide the reader with
those basics of matrix algebra that are required for managing land-
mark data, as well as an introduction to the concepts of rotation and
translation and their effect on landmark coordinate data.