6.2 tsibble

The ‘tsibble’ package provides a data infrastructure for tidy temporal data with wrangling tools. Adapting the forementioned tidy data principles, tsibble is a data- and model-oriented object.

In tsibble:

1. Index is a variable with inherent ordering from past to present.
2. Key is a set of variables that define observational units over time.
3. Each observation should be uniquely identified by index and key.
4. Each observational unit should be measured at a common interval, if regularly spaced.