9.4 Multiple figures side-by-side
You can place multiple figures side-by-side using the
fig.show="hold" along with the
out.width option. In the example below, we have set
out.width="50%" (see Figure 9.2 for the output):
This simple approach works for both PDF and HTML output.
If you want to use sub-figures when there are multiple plots in a figure, you may see Section 6.6, but please note that sub-figures are only supported in LaTeX output.