The ANLzzFL flag is useful in many circumstances; an example is when more than 1 coding path is included for analysis, in which case separate analysis flags could be used to denote primary coding path or the records used for analysis from each coding path. A codelist of Y, N, null may be used as described in ADaMIG v1.2 Section 3.3.8, Indicator Variables for BDS Datasets.
This variable is conditional on whether analysis records flags are needed for analysis.