Additional variable in hover tooltips about highcharter HOT 1 CLOSED

   series: [{
            data: [
                { x: 95, y: 95, z: 13.8, name: 'BE', country: 'Belgium' },
                { x: 86.5, y: 102.9, z: 14.7, name: 'DE', country: 'Germany' },
                ....

   series: [{
            data: [
                { x: 4, y: 2, text: 'A'},
                { x: 5, y: 4, text: 'A'},
                ....

library("highcharter")
library("rlist")


df <- data.frame(
  x=c(4,5,6,3),
  y=c(2,4,3,2),
  text=c("A","A","A","B"), stringsAsFactors = FALSE)

# ds: data series
ds <- list.parse(df)
names(ds) <- NULL

head(ds)


highchart() %>% 
  hc_add_serie(data = ds, name = "data.frame data",
               type = "scatter") %>% 
  hc_tooltip(headerFormat = "<b>This is a custom tooltip</b><br>",
             pointFormat = "x: {point.x} <br> y: {point.y} <br> text: {point.text}")