Create NDFs holding final model values EXPORTNDF
"modelorder" if you wish to export the residual model or
quality arrays respectively. Exportation of RES is implied if NOI is specified as it becomes the variance
component of the resulting NDF for RES. QUA will become the quality component of any full
3-dimensional model (e.g. RES, AST, FLT, EXT), but no quality will be written to model components with
different dimensions. Note, since an NDF can only contain 8 quality flags, it may be necessary to
compress quality information by combining flags with similar purposes together. To avoid this,
it is possible to use parameter "exportqbits" to specify that only a subset of the quality flags be
written out t the NDF. [0]