This sparkline htmlwidget is based on the nifty jQuery Sparklines.

htmlwidgets for R has made it extremely easy to integrate, access and use html widgets from R.

Installation

Usage is quite straightforward. First install the package using devtools.

devtools::install_github("Bart6114/sparklines")

Usage

After installation you’re ready to go. Let’s get some data on the daily results of the GOOG stock.

library(quantmod); library(dplyr)

GOOG <-
  getSymbols("GOOG", src = 'yahoo', from = '2015-03-15', env = NULL) %>%
  as.data.frame %>%
  mutate(day_result = GOOG.Close - GOOG.Open)

GOOG_daily_result <-
  as.vector(GOOG$day_result)

GOOG_daily_result
##  [1]   3.56  -0.87   7.00  -1.40  -1.29  -1.62   7.63 -11.72  -2.42  -4.66
## [11]   0.41  -2.00  -6.04  -5.32   4.55  -1.06   3.23  -0.25

Now show a nice sparkline:

library(sparklines)
sparkline(GOOG_daily_result, "line")

We can also configure the look and feel a bit using a named list with options such as defined at http://omnipotent.net/jquery.sparkline/#s-docs. For example:

sparkline(GOOG_daily_result, "line", list(fillColor="white"))

Chart types

Different types of charts are available in the jQuery Sparklines library. A few of them are shown below.

sparkline(GOOG_daily_result, "line")

sparkline(GOOG_daily_result, "bar")

sparkline(GOOG_daily_result, "tristate")

sparkline(GOOG_daily_result, "box")

Shiny

You can also use sparklines in a Shiny app. Just test the following minimal example and roll from there.

library(shiny)
library(sparklines)

server <- function(input, output) {
  output$spark <- renderSparkline({
    sparkline(runif(input$values, -5, 5), input$chart_type)
  })
  
  
}

ui <- fluidPage(
  sidebarLayout(
    sidebarPanel(
      sliderInput("values", "Number of values:", min = 5, max = 100, value = 10),
      selectInput("chart_type", "Chart type", choices = list("line","bar","tristate","box"))
    ),
    mainPanel(sparklineOutput("spark"))
  )
)

shinyApp(ui = ui, server = server)

Further information

Type ?sparkline to open up the function’s R documentation.

Almost all chart types and configuration options, as defined at http://omnipotent.net/jquery.sparkline/#s-docs, can be used.

If you encounter any issues, please open an issue at the sparklines GitHub repository.