LiveCode Forums.

The RunRev site says that with Revolution one can
"Prepare sophisticated graphs and reports".

Does this refer only to 2.9? I can't find one
reference to graphs (graph, plot, chart) in the
2.8.1 docs.

Pie charts can easily be made using the oval control, and setting the startAngle and the arcAngle. Irregular Polygons are great for line or scatter graphs, and bar graphs can make use of the rectangle graphic object.

You can do lots of things with rev, but most of them need you to do honest to good work (yeah I know, horrible). This is one of those areas, but there's stuff to buy to get there easier, like for example quartam reports.

Of course RunRev has some quite.. interesting claims on their site, and this is certainly one of the more stretched ones.

As BvG says, do-able but not built into LiveCode per se and you will need to do some (perhaps quite advanced)scripting. You can try ChartMaker which takes care of all the heavy-lifting for you, leaving you with 'point and click' design options to create sophisticated presentations of your data. Available in the RunRev store.

There is also ChartsEngine, which also is sold on the runrev store page, and has it's own sub forum here:

ChartsEngine forum