diagonal_covariance
Display only the diagonal terms of the covariance matrix
Specification
- Alias: None 
- Arguments: None 
- Default: diagonal_covariance for response vector > 10; else full_covariance 
Description
With a large number of responses, the covariance matrix can
be very large. diagonal_covariance is used to
suppress the off-diagonal covariance terms (to save compute and
memory resources and reduce output volume).

