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