Flatline, a language for data generation and filtering

Flatline is a lispy language for the specification of values to be extracted or generated from an input dataset, using a finite sliding window of input rows.

In BigML, it is used either as a row filter specifier or as a field generator.

In the former case, the input consists of dataset rows on which a single, Boolean expression is computed, and only those for which the result is true are kept in the output dataset.

When used to generate new datasets from given ones, a list of Flatline expressions is provided, each one generating either a value or a list of values, which are then concatenated together to conform the output rows (each value representing therefore a field in the generated dataset).

Documentation

• Flatline's user manual.
• Quick reference with all pre-defined functions.

Licenses

Flatline reference documentation by BigML Inc is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

All code in this repository is released under the Apache License 2.0.