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:

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

You can also embed plots, for example:

plot(cars)

Note that the figure width and figure height can be modified using fig.width= and fig.height= as below:

plot(cars) #```{r, fig.width=4, fig.height=4}

Note that the echo = FALSE parameter was added to the next code chunk to prevent printing the R code that generated the plot.

You can use results="hide" to hide the results/output (but the code would still be displayed) as below.

summary(cars) #```{r, results="hide"}