R Markdown
This is an R Markdown document. Markdown is a simple formatting syntax for authoring HTML, PDF, and MS Word documents. For more details on using R Markdown see http://rmarkdown.rstudio.com.
When you click the Knit button a document will be generated that includes both content as well as the output of any embedded R code chunks within the document. You can embed an R code chunk like this [1]:
\[ \begin{equation} \begin{aligned} \operatorname{cov}(X, Y) &=\mathrm{E}[(X-\mathrm{E}[X])(Y-\mathrm{E}[Y])] \\ &=\mathrm{E}[X Y-X \mathrm{E}[Y]-\mathrm{E}[X] Y+\mathrm{E}[X] \mathrm{E}[Y]] \\ &=\mathrm{E}[X Y]-\mathrm{E}[X] \mathrm{E}[Y]-\mathrm{E}[X] \mathrm{E}[Y]+\mathrm{E}[X] \mathrm{E}[Y] \\ &=\mathrm{E}[X Y]-\mathrm{E}[X] \mathrm{E}[Y] \end{aligned} \end{equation} \] \[ \begin{equation} \begin{array}{|c|c|c|c|c||c|} \hline & \multicolumn{3}{|c||}{\boldsymbol{x}} & \multicolumn{1}{c|}{f_Y(y)} \\ \cline { 1 - 5 } f(x, y) & \multicolumn{1}{|c|}{5} & 6 & 7 & \\ \hline \boldsymbol{y} & \mathbf{8} & 0 & 0.4 & 0.1 & 0.5 \\ \hline & 9 & 0.3 & 0 & 0.2 & 0.5 \\ \hline f_X(x) & 0.3 & 0.4 & 0.3 & 1 \\ \hline \end{array} \end{equation} \]
summary(cars)
## speed dist
## Min. : 4.0 Min. : 2.00
## 1st Qu.:12.0 1st Qu.: 26.00
## Median :15.0 Median : 36.00
## Mean :15.4 Mean : 42.98
## 3rd Qu.:19.0 3rd Qu.: 56.00
## Max. :25.0 Max. :120.00
Including Plots
You can also embed plots, for example:
Note that the echo = FALSE
parameter was added to the
code chunk to prevent printing of the R code that generated the
plot.