First attempt

Simple R code

a <- 10
b <- 20
myVec <- rnorm(5)
a + b

## [1] 30

range(myVec)

## [1] 0.5571 1.9197

Now test if it will write text within the document, the sum of the above analysis is 30.

Creating a plot

plot(1:10, col = "red")

plot of chunk simpleplot

Conclusion

Isn't that grand and super.