It is generally a good practice to make sure you understand the pieces you are working with before building them together. SelectInput(inputId='countries', label='Countries', choices = c('Sweden', 'Denmark', 'Norway', 'Iceland', 'Finland'), selected='Sweden') Still not so interesting though - because there is nothing going on in the server. Now you should be able to see the layout and interact with the UI.

This only requires outputID as an argument, the unique ID for this output point. We start with an output for rendering a figure using the plotOutput. Here, we can render different things such as figures, images, text or tables. Next, we need to specify an output point. Also, it is often useful to specify step argument, specifying its stepsize. For instance, the sliderInput needs a minimum and maximum value and a default value. You can always check the documentation using the ? syntax. All input elements require an ID (which we need to identify it in the server code later) and a label which will show the user what it does.īeyond that, the required values differ with the element. You can check which arguments it requires by running ?sliderInput (this is a useful way to check the documentation for any function).

selectInput Select one or more of a set of predefined choices.

numericInput Directly specify a numeric value.

The R packages: is using Bootstrap to specify rows and columns).

This tutorial assumes that you have the following things installed:

Shiny rstudio tutorial