Parameters | Workflows | Compress the K matrix

Compress the K matrix
Check this box to run the K Matrix Compression process with the Optimized clustering algorithm (Zhang et al., 2010) to produce a smaller-dimension K matrix to be used in the Q-K mixed model.
Caution: This option should not be checked if multiple trait variables are specified using the List-Style Specification of Trait Variables field.
To Compress the K Matrix:
Note: A Pedigree ID variable cannot be specified when this option is checked.