Video in report
========================================================
This is just an example of how to include youtube videos on an html report.
Basically you use **knitr** through [Rstudio](http://www.rstudio.com/). Then you add the video using _iframe_ html tag directly:
```{r, eval=FALSE}
```
And this is the result:
Well, _knitr_ is really made to include R code
```{r fig.width=7, fig.height=6}
summary(cars)
plot(cars, col = "blue")
```
and some math.
\[ f_Z(z) = \frac{1}{\sqrt{2 \pi}} \exp \left( - \frac{z^2}{2} \right) \]
More [here](http://yihui.name/knitr/)!