Visualizing Proportions - Data Points: Visualization That Means Something - page 172

FIGurE 5-32 Interactive voyager for consumer spending
The expenditures data is annual from 1984 to 2008, so Change lines 58-59
accordingly.
private var _cols:Array =
[1984,1985,1986,1987,1988,1989,1990,1991,1992,
1993,1994,1995,1996,1997,1998,1999,2000,2001,2002,
2003,2004,2005,2006,2007,2008];
Next change references to the data headers. The original data file ( jobs.txt )
has four columns: year, occupation, people, and sex. The spending data has
only three columns: year, category, and expenditure. You need to adapt the
code to this new data structure.