[amibroker] Plotting backtest metrics via CBI

[dusty.mclaughlin]

Hello,

I've tried the following code to allow for plotting of backtest 
metrics to no avail.  A gentle nudge in the right direction would be 
greatly appreciated.

SetCustomBacktestProc("");

if (Status("action") == actionPortfolio)
{
        bo = GetBacktesterObject();

        bo.backtest();

        st = bo.getperformancestats(0);

        RARVal = 100.0 * st.getvalue("RAR");
        Plot(RARVal, "K Ratio", colorWhite, styleLine);

}