# An Implementation for the Gravitational Models of Trade

## Documentation for package ‘zerotradeflow’ version 0.1.0

- DESCRIPTION file.

## Help Pages

comtrade | A sample of the UN Comtrade Database.
distinct | Dataset composed of six different countries.
get_zerotradeflow | Expand the dataset from the passed database as parameters.
same | Dataset composed of five different countries (BRA appears as both exporter and importer).