(1) am trying to write R code to deal with boundary conditions. is there a SIMPLE way in which i can create an R object from a fitted MxModel that generates vectors of lower and upper bounds for the free parameters? ( i have code that does it, but it is pretty ugly).
(2) the documentation for MxBounds and mxBounds speak of a 'spec' matrix. the same term also appears in several documents when i do a search. anybody tell me what that is? suggest that you include an example of using a 'spec' matrix in the documentation for mxBounds.