Creating a data frame that is manually input from user

I would like to create a data frame that asks user for input and stores the variable in each specific cell. I've been looking it up, but cannot find specifically how to do it.

I don't think RStudio offers a user interface. You could build one with shiny and for example DT though. DT provides an editable table widget. Here's an example. You could then save df somewhere.

df <- tibble(a=rep("Empty",2), b=rep("Empty",2)) # initial dataframe
ui <- fluidPage(
server <- function(input,output,session){
	output$my_table <- renderDT({
		cat("render DT\n")
					  options = list(lengthChange=FALSE, ordering=FALSE, searching=FALSE,
					  			   stateSave=TRUE, scrollX=FALSE, paging=FALSE, info=FALSE),
					  editable = TRUE
	observeEvent(input$my_table_cell_edit, {
		info <- input$my_table_cell_edit
		i = info$row
		j = info$col
		v = info$value
		cat("my_table edited", i, j, v, "\n")
		df[i,j] <- v
shinyApp(ui, server)

How would i use this to where they input it in and it saves the value they input, but also allows for editing if inputted wrong

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