How would be ported this code using RTCharterBuilder
| b | b := RTCharterBuilder new. b extent: 500 @ 200. b points: keys. b stackX. b allY: [ : each | aBag occurrencesOf: each ]. b histogramWithBarTitle: #yourself. b axisY. b newAxisConfiguration plain. b axisXTitled: 'MyTitle'. b axisX. b build. ^ b
using RTGrapher?
Because some methods are missing (#points: #stackX, etc) in the latest version of Roassal2.
Hernán