mlfit

The Iterative Proportional Fitting (IPF) algorithm operates on count data. This package offers implementations for several algorithms that extend this to nested structures: 'parent' and 'child' items for both of which constraints can be provided. The fitting algorithms include Iterative Proportional Updating , Hierarchical IPF doi:10.3929/ethz-a-006620748, Entropy Optimization , and Generalized Raking doi:10.2307/2290793. Additionally, a number of replication methods is also provided such as 'Truncate, replicate, sample' doi:10.1016/j.compenvurbsys.2013.03.004.