> ## Documentation Index
> Fetch the complete documentation index at: https://docs.activeviam.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Hierarchy.slicing

<span id="atoti.Hierarchy.slicing" />

> *property* Hierarchy.slicing: [bool](https://docs.python.org/3/library/functions.html#bool)

Whether the hierarchy is slicing or not.

* A regular (i.e. non-slicing) hierarchy is considered aggregable, meaning that it makes sense to aggregate data across all members of the hierarchy.

  For instance, for a **Geography** hierarchy, it is useful to see the worldwide aggregated **Turnover** across all countries.
* A slicing hierarchy is not aggregable at the top level, meaning that it does not make sense to aggregate data across all members of the hierarchy.

  For instance, for an **As of date** hierarchy giving the current bank account **Balance** for a given date, it does not provide any meaningful information to aggregate the **Balance** across all the dates.