checkboxGroupInput() ... accessing checked/unchecked values reactively

[Daniel Bowen]

I can get the grouped checkboxes to show up in a panel in my app. How then do I observe when a user checks/unchecks one of the checkboxes in the group?

In a regular checkbox, I have the liberty to define the inputId:

checkboxInput(inputId = "checkbox1", label = "Checkbox 1", value = FALSE)

... and retrieve shinyServer() with:

input$checkbox1

How do I access selected/unselected checkboxes form a group of checkboxes (checkboxesGroupInput())?

- Dan 

[Daniel Bowen]

... more concisely: What are the inputId's for these checkboxes? I do not see them when I print(names(input)) to the terminal, while the app is running.

- Dan

[Joe Cheng]

The checkbox group itself has an inputId, and the value is a vector of all the selected values. 

Sent from my phone

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