hc_boost: Boost options for highcharter objects

In highcharter: A Wrapper for the 'Highcharts' Library

Description

Options for the Boost module. The Boost module allows certain series types to be rendered by WebGL instead of the default SVG. This allows hundreds of thousands of data points to be rendered in milliseconds. In addition to the WebGL rendering it saves time by skipping processing and inspection of the data wherever possible. This introduces some limitations to what features are available in boost mode. See the docs for details. In addition to the global boost option, each series has a boostThreshold that defines when the boost should kick in. Requires the modules/boost.js module.

Usage

hc_boost(hc, ...)

Arguments

hc	A highchart htmlwidget object.
...	Arguments defined in https://api.highcharts.com/highcharts/boost.

Examples

#  Ex 1
options(highcharter.rjson = FALSE)

n <- 50000

x <- sin(4 * 2 * pi * seq(n) / n) + rnorm(n) / 10

x <- round(x, 3)

plot(x)

hc1 <- highchart() %>%
  hc_chart(zoomType = "x") %>%
  hc_add_series(data = x) %>%
  hc_title(text = "No boost") %>%
  hc_boost(
    enabled = FALSE # Default
  )

hc1

# Boost is a stripped-down renderer-in-a-module for Highcharts. It bypasses
# some of the standard Highcharts features (such as animation), and focuses
# on pushing as many points as possible as quickly as possible.

hc2 <- highchart() %>%
  hc_chart(zoomType = "x") %>%
  hc_add_series(data = x) %>%
  hc_title(text = "With boost") %>%
  hc_boost(enabled = TRUE)

hc2


# # Ex 2
# library(MASS)
#
# n <- 20000
#
# sigma <- matrix(c(10,3,3,2),2,2)
# sigma
#
# mvr <- round(mvrnorm(n, rep(c(0, 0)), sigma), 2)
#
# vx <- ceiling(1+abs(max(mvr[, 1])))
# vy <- ceiling(1+abs(max(mvr[, 2])))
#
# # unnamed list
# ds <- list_parse2(as.data.frame(mvr))
#
# highchart() %>%
#   hc_chart(zoomType = "xy") %>%
#   hc_xAxis(min = -vx, max = vx) %>%
#   hc_yAxis(min = -vy, max = vy) %>%
#   hc_add_series(
#     data = ds, #list
#     type = "scatter",
#     name = "A lot of points!",
#     color = 'rgba(0,0,0,0.1)',
#     marker = list(radius = 2)
#     ) %>%
#   hc_boost(
#     enabled = TRUE
#   )
#
# dat <- as.data.frame(mvr)
# names(dat) <- c("x", "y")
#
# highchart() %>%
#   hc_chart(zoomType = "xy") %>%
#   hc_xAxis(min = -vx, max = vx) %>%
#   hc_yAxis(min = -vy, max = vy) %>%
#   hc_add_series(
#     data = dat,
#     type = "scatter",
#     hcaes(x, y),
#     name = "A lot of points!",
#     color = 'rgba(0,0,0,0.1)',
#     marker = list(radius = 2)
#   ) %>%
#   hc_boost(enabled = TRUE)
#
# # Ex3
# N <- 1000000
# n <- 5
# s <- seq(n)
# s <- s/(max(s) + min(s))
# s <- round(s, 2)
#
# series <- s %>%
#   purrr::map(~ stats::arima.sim(round(N/n), model = list(ar = .x)) + .x * n * 20) %>%
#   purrr::map(as.vector) %>%
#   purrr::map(round, 2) %>%
#   purrr::map(~ list(data = .x))
#
# highchart() %>%
#   hc_add_series_list(series) %>%
#   hc_chart(zoomType = "x") %>%
#   hc_boost(enabled = TRUE)

highcharter documentation built on Jan. 3, 2022, 5:08 p.m.