R Notebook

plot(cars)

print(seq(1:10))

 [1]  1  2  3  4  5  6  7  8  9 10

Add a new chunk by clicking the Insert Chunk button on the toolbar or by pressing Cmd+Option+I.

When you save the notebook, an HTML file containing the code and output will be saved alongside it (click the Preview button or press Cmd+Shift+K to preview the HTML file).