\begin{figure}
\includegraphics[width=1\linewidth]{images/widyr} \caption{The philosophy behind the widyr package, which can perform operations such as counting and correlating on pairs of values in a tidy dataset. The widyr package first 'casts' a tidy dataset into a wide matrix, performs an operation such as a correlation on it, then re-tidies the result.}(\#fig:widyr)
\end{figure}