WISG19

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.

Including Code Chunks

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

Including Plots

You can also embed plots. Note that the echo = FALSE parameter was added to the code chunk to prevent printing of the R code that generated the plot.

Options for Combined Output

You can print your figures directly into the document, with or without showing the associated code.

set.seed(4)
vals <- rnorm(1000)
hist(vals, main = "Look a histogram!", xlab = "Values", col = "green")

You can adjust the figure width using fig.width.

You can adjust the figure height using fig.height.

You can set the alignment using “fig.align”

Take advantage of par options to print multiple figures in a layout.

Math

If you want to include nicely formatted mathematical expressions inline with your text, use math text between dollar signs. For example, \(\Sigma_{i = 1}^n x_i\). This can be useful for printing special characters as well: \(\beta\), \(alpha\), \(\pm\).
If you want the expression in display form, use two dollar signs.
\[\int_0^\infty\int_0^\infty \left( \frac{X_i}{Y_i} \right)dxdy\]