New vignettes and website

At last!

You can review the new vignettes on http://iotables.ceemid.eu/

0.3.3 new vignette and new functionality

1. Output coefficients, output multipliers
2. Backward and forward linkages
3. Vignette
4. Several smaller fixes in the documentation and the code.

Bug fixes and efficiency gains

1. Better exception handling in equation_solve(). Removes trivially erroneous, all-zero columns.
2. Efficiency gains in indicator and multiplier creation.
3. New function to create backward linkages.

0.3.1. Much faster release

The data manipulation functions now used nested data frames, resulting in many-many times faster run times in real-data scenarios. Many small bugs are corrected and exceptions are handled.

0.2.9 with SNA 2010 tables, margins and taxes.

You can work now with trade and transport margins and taxes. Many small improvements and small bug fixes since 0.2.0 that was first released on CRAN on 30 January 2018.