回测框架

定义投资策略，运行回测，分析策略业绩

对象

`backtestStrategy`	Create `backtestStrategy` object to define portfolio allocation strategy
`backtestEngine`	Create `backtestEngine` object to backtest strategies and analyze results

`runBacktest`	Run backtest on one or more strategies
`equityCurve`	Plot equity curves of strategies
`summary`	Generate summary table of backtest results

This example shows how to perform backtesting of portfolio strategies using a backtesting framework implemented in MATLAB®.

This example shows how to perform backtesting of portfolio strategies that incorporate investment signals in their trading strategy.