12.4.2 multivar segregation model parameters

start trait I mean X

There is one statement per trait, specifying the starting value for the mean trait values. The PolyEM programs will compute the initial values if not given.

start trait I effect M X1 X2...

Starting values for the fixed effect levels for the traits are computed, unless specified in this statement.

start additive variances X1 X2...

The starting values for the variances of the traits are required. The number of values must be the same as the number of traits selected, in the order of increasing trait number.

start residual variances X1 X2 ...

Starting values for residual variances are also required.

start additive (covariances | correlations) X12...

Starting values for the covariances (or correlations) between the traits are required. They are given the order: X12, X13, ..., X1n, X23, ..., X2n, ..., where Xij is the covariance for the ith and jth selected traits from the pedigree file.

start residual (covariances | correlations) X12...

See the `start additive...' statements.