initial_values are read from the following lines if there
are not enough initial values on the model line.
Each variance model has a certain number of parameters. If
insufficient non zero values are found on the model line ASReml expects
to find them on the following line(s),
initial values of 0.0 may be ignored if they are on the model
line but are accepted on subsequent lines,
the notation n*v
(for example, 5 * 0.1)
is permitted on subsequent lines (but not the model line) when there
are n repeats of a
particular initial value v,
only in a few
specified cases is 0 permitted as an initial
value of a non-zero parameter.