Travel To Work Area.

This package makes Travel To Work Area from a commuting flow data frame.




  • now list_center argument in function ttwa allows you to define inalienable centers from the beginning of the process of aggregation
  • in class "zoning", statistic data.frame contains number of primary territories

Reference manual

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install.packages("ttwa") by Francois Semecurbe, 5 years ago

Browse source code at

Authors: Francois Semecurbe, Joachim Timoteo

Documentation:   PDF Manual  

GPL (>= 2.0) license

Depends on data.table

See at CRAN