R Tutorial: Dashboard Header overview

Want to learn more? Take the full course at https://campus.datacamp.com/courses/building-dashboards-with-shinydashboard at your own pace. More than a video, you'll learn hands-on coding & quickly apply skills to your daily work. --- Now you're going to learn about updating the dashboard header. When I say header, I'm referring to this top portion, in this case the blue bar. Here. The piece of the header we are going to focus on is in the top right corner -- there can be drop down menus. There are three types of drop down menus: messages, notifications, and tasks. Let's first focus on messages. To create these dropdown menus, use the dropdownMenu() function. For messages, set type equal to "messages". This will result in the image above. Notice the 0 in the top corner of the message icon -- this is because we haven't created any messages yet. To create the messages, you use the messageItem() function. Set who the message is from with the from parameter, the message text with the message parameter. You can also have the message link to an external site using the href parameter. You can add additional messages by adding additional messageItem()s. For example, here we have two messages by just adding a second messageItem() to the dropdownMenu(). Notifications are very similar to messages. Notice in the code we have changed type = "notifications" and now rather than using the message parameter, we put the details in the text parameter. There other other ways we can customize the looks of these notifications that we will talk about in detail in subsequent lessons. Similar to the notifications and the messages, you can also set tasks. You can set a value for a task between 0 and 100 to indicate the progress. Here it is set to 15, indicating that there is 15% progress. Alright, now that you've learned about different types of dropdown menus -- messages, notifications, and tasks -- let's apply it to your NASA dashboard. #RTutorial #Dashboard #shinydashboard #R #Da