I wanted to show an example with real data that I computed and that's what's up on the screen.

我用真实的数据做了一个案例,请看上方的屏幕。

耶鲁公开课 - 金融市场课程节选

You can see the different points-- I've calculated this using data from 1983 until 2006-- and I computed all of the inputs to those equations that we just saw.

你可以观察不同的点-,我用从1983年到2006年的数据-,代入我们刚教授的等式,进行了计算。

耶鲁公开课 - 金融市场课程节选

They might say my sample period was off, ... but that's what the theory-- ... using my data for the sample period that I computed-- the expected returns and co-variances says one should do.

他们可能说我的采样周期是有问题的，不过我的结果都是靠理论-,我采用自己收集的数据计算出-,预期收益和协方差可以用来指导我们的投资行为。

耶鲁公开课 - 金融市场课程节选