drill-down-ex.R

rm(list = ls())
suppressPackageStartupMessages(library("dplyr"))
suppressPackageStartupMessages(library("purrr"))

## Warning: package 'purrr' was built under R version 3.2.3

suppressPackageStartupMessages(library("highcharter"))

df <- data_frame(
  name = c("Animals", "Fruits", "Cars"),
  y = c(5, 2, 4),
  drilldown = tolower(name)
)

df

## Source: local data frame [3 x 3]
## 
##      name     y drilldown
##     (chr) (dbl)     (chr)
## 1 Animals     5   animals
## 2  Fruits     2    fruits
## 3    Cars     4      cars

hc <- highchart() %>%
  hc_chart(type = "column") %>%
  hc_title(text = "Basic drilldown") %>%
  hc_xAxis(type = "category") %>%
  hc_legend(enabled = FALSE) %>%
  hc_plotOptions(
    series = list(
      boderWidth = 0,
      dataLabels = list(enabled = TRUE)
    )
  ) %>%
  hc_add_series_df(
    data = df,
    name = "Things",
    colorByPoint = TRUE
  )


dfan <- data_frame(
  name = c("Cats", "Dogs", "Cows", "Sheep", "Pigs"),
  value = c(4, 3, 1, 2, 1)
)

dffru <- data_frame(
  name = c("Apple", "Organes"),
  value = c(4, 2)
)

dfcar <- data_frame(
  name = c("Toyota", "Opel", "Volkswagen"),
  value = c(4, 2, 2)
)

hc <- hc %>%
  hc_drilldown(
    allowPointDrilldown = TRUE,
    series = list(
      list(
        id = "animals",
        data = list.parse2(dfan)
      ),
      list(
        id = "fruits",
        data = list.parse2(dffru)
      ),
      list(
        id = "cars",
        data = list.parse2(dfcar)
      )
    )
  )

hc