radioMatrixInput: Create radioMatrixInput
In antonmalko/shinyRadioMatrix: R Shiny input: matrix of radio buttons

Create radioMatrixInput

1 2	radioMatrixInput(inputId, rowIds, minLabels, maxLabels, choices = NULL, selected = NULL, choiceNames = NULL, choiceValues = NULL)

`inputId`	The input slot that will be used to access the value.
`rowIds`	character. Vector of row identifiers. They will be used to find values that the user has selected. In the output, the component will return a named list of values, each name corresponding to the row id, and the value - to the value user has selected in this row.
`minLabels, maxLabels`	character. Vectors of displayed labels of the leftmost and rightmost points of each row
`choices`	List of values to select from (if elements of the list are named then that name rather than the value is displayed to the user). If this argument is provided, then choiceNames and choiceValues must not be provided, and vice-versa. The values should be strings; other types (such as logicals and numbers) will be coerced to strings.
`selected`	either `NULL` (default) or a vector of values which should be selected when the component is created
`choiceNames, choiceValues`	as in radioButtons. Repeated here: List of names and values, respectively, that are displayed to the user in the app and correspond to the each choice (for this reason, choiceNames and choiceValues must have the same length). If either of these arguments is provided, then the other must be provided and choices must not be provided. The advantage of using both of these over a named list for choices is that choiceNames allows any type of UI object to be passed through (tag objects, icons, HTML code, ...), instead of just simple text.