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:

library(datasets)

data("iris")
dim(iris)
## [1] 150   5
head(iris)
##   Sepal.Length Sepal.Width Petal.Length Petal.Width Species
## 1          5.1         3.5          1.4         0.2  setosa
## 2          4.9         3.0          1.4         0.2  setosa
## 3          4.7         3.2          1.3         0.2  setosa
## 4          4.6         3.1          1.5         0.2  setosa
## 5          5.0         3.6          1.4         0.2  setosa
## 6          5.4         3.9          1.7         0.4  setosa
table(iris$Species)
## 
##     setosa versicolor  virginica 
##         50         50         50

You can also embed plots, for example:

# Boxplot: good for compparing data
boxplot(iris)
## Red line is mean
abline(h = mean(iris$Petal.Length), col="red")

# Historgram
hist(iris$Petal.Length)

## more granular
hist(iris$Sepal.Length, breaks = 100, col = "green")

# Barplot
barplot(table(iris$Species))

# Lattice ----
library(lattice)
plot(iris$Sepal.Width, iris$Sepal.Length)

xyplot(Sepal.Length ~ Sepal.Width | Species, data = iris)

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