barchart(a, options)
Draws a barchart using the contents of matrix a.
See also pareto xychart pie boxwhiskers
Example
a = ( "New York", 4 ; "Paris", 12 ; "Lima", 13 ; "Calcuta", 21 )
"New York" 4
"Paris" 12
"Lima" 13
"Calcuta" 21
barchart( a, "background:white", "horizontal")