Construct an object that specifies which indices of coefficients should remain fixed in maximum likelihood computation.
get.fixed(beta = integer(0), gamma = integer(0), zeta = integer(0))List of vectors indicating fixed indices.
Vector of indices of beta to keep fixed.
Vector of indices of gamma to keep fixed.
Vector of indices of zeta to keep fixed.
Arguments are expected to be vectors of integers. These are interpreted as
the indices to keep fixed during optimization. For example,
beta = c(1L, 1L, 2L) indicates that the first and second elements of
beta should remain fixed. Note that duplicate indices are ignored.
The default value is the empty vector integer(0), which requests that
no elements of the given coefficient vector should be fixed.