ipub is the publisher and the maintainer of the data.tree R package. This package lets you organise data in hierarchic tree structures, and implements tree traversal out-of-the-box. Use it for finance, for search algorithms, and more.
You can get data.tree from CRAN or from GitHub. The data.tree vignette will give you an idea of what is possible with the package, while the application vignette provides insight into decision tree programming, visualisation, game complexity, survival modelling, and other applications for which data.tree can be useful. A few articles have been written on our blog.
Please contact us at firstname.lastname@example.org if you have interesting projects which could benefit from our experience with hierarchical data sets.