Orthogonal Procrustes rotation is a means of comparing two different configurations of n points, assumed to
relate to the same n subjects in each case. The analysis rotates, translates, and optionally scales one matrix
(the Fitted configuration) to match the other (the Fixed configuration), minimizing the residual sum of squares
between the configurations. A typical use of Procrustes rotation is to compare ordinations produced using different
methods, such as Principal Coordinates Analysis and
Multidimensional Scaling.
Notes:
- It does not matter which configuration is specified as fixed, except when you enable scaling and disable
standardization from the Options menu
- If one matrix has less columns than the other, it will be extended with zeros to the larger size.
Fixed Configuration
Matrix containing the first configuration of points.
Fitted Configuration
Matrix containing the second configuration of points.
Available Data
This lists matrices that can be used to specify the configuration. Double-click on a name to copy it to the current
input field; alternatively, you can type the name directly into the input field.
See Also
- Options to control various aspects of the algorithm
used for the rotation and select which results are to be displayed
- Saving results for further analysis
- GENPROCRUSTES for Generalized Procrustes analysis of more
than two configurations (in command mode)