Sparklines in the 'R' Terminal

A sparkline is a line chart, without axes and labels. Its goal is to show the general shape of changes over time, or another quantity. This package is an 'R' implementation of the original shell project: < http://zachholman.com/spark/>.


This is an R port of spark.sh.

The spark.sh wiki has some cool usage examples.

Install it from github, with the devtools package:

devtools::install_github("gaborcsardi/spark")
library(spark)

The R package has some improvements compared to the original shell implementation.

The length of the spark line can be fitted to the width of the teminal window:

spark(lynx, width = "auto")
##> ▁▁▂▄▆▇▃▁▁▁▄▄▂▁▁▁▁▃▃▁▁▁▂▄▃▁▁▁▂▆▆▁▁▁▂▃▂▁▁▁▂▄▅▂▁▁▁▁▃▅▁▁▁▂▇█▄▁▁▂▅▅▅▂▁▁▁▂▄▄▂▁▂▃▄

Matrices can be plotted row-wise:

spark(t(EuStockMarkets), width="auto", common_scale = FALSE)
##> ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▂▂▂▂▂▂▂▂▂▂▂▂▂▂▃▃▃▃▃▄▄▄▅▅▆▅▅▅▆▆▇▇███
##> ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▃▃▃▃▃▃▃▃▃▃▃▄▄▄▅▅▆▅▅▅▆▆▇█████
##> ▁▁▁▁▁▁▁▁▁▂▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂▂▂▂▂▂▂▁▂▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▂▁▂▂▂▂▃▃▃▄▄▄▄▅▄▄▄▅▇▇███
##> ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▂▂▁▂▂▂▂▂▂▃▃▂▂▂▂▂▂▂▂▂▂▂▂▂▃▃▃▃▃▃▃▄▃▄▄▄▄▄▄▄▄▄▅▅▅▆▆▆▆▆▆▇▇█████
spark(lh, max = crayon::red)
##> ▄▄▄▄▃▁▄▄▅▃▂▂▄▂▇▇▅▄▄▂▂▂▅▇▄▃▃▆▆▅▅▄▅▄▂▂▁▁▃███▇▅▃█▇▆

News

1.0.1

First version with a NEWS file.

  • Various fixes for R CMD check.

1.0.0

Last version without a NEWS file.

Reference manual

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install.packages("spark")

1.0.1 by Gabor Csardi, 2 years ago


https://github.com/gaborcsardi/spark


Report a bug at https://github.com/gaborcsardi/spark/issues


Browse source code at https://github.com/cran/spark


Authors: Gabor Csardi


Documentation:   PDF Manual  


MIT + file LICENSE license


Imports magrittr, utils

Suggests crayon, testthat


See at CRAN