See the article on Component Layout to learn more about the available tools for managing the layout of interactive documents. Some may even by hybrids-for example imagine a sidebar on the left containing inputs that control outputs interspersed with narrative in the main document body. Some interactive documents you create will use narrative interspersed with Shiny components and some (like this example) will be full page applications. We again use context: server on the last R code chunk to indicate that it contains the Shiny Server code.We add panel: sidebar and panel: fill to the two code chunks that define the user-interface to specify that we want them laid out in special panel containers.The YAML front-matter includes the page-layout: custom option (to indicate we want our content to occupy the entire page rather than being centered with padding).There are a few things worth noting in this example: title: 'Iris K-Means Clustering' format: html: page-layout: custom server: shiny - ```) ```

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