Draw a sparkline bar graph with unicode block characters

Rendered using block elements. In most common fixed width fonts these are rendered wider than regular characters which means they are not suitable if you need precise alignment.

You might want to avoid sparklines on non-UTF-8 systems, because they do not look good. You can use is_utf8_output() to test for support for them.

Usage

spark_bar(x)

Arguments

x

A numeric vector between 0 and 1

Details

x <- seq(0, 1, length = 6)
spark_bar(x)

#> ▁▂▄▅▇█                                                                          

x <- seq(0, 1, length = 6)
spark_bar(sample(x))

#> ▅▁█▄▇▂                                                                          

spark_bar(seq(0, 1, length = 8))

#> ▁▂▃▄▅▆▇█                                                                        

NAs are left out:

spark_bar(c(0, NA, 0.5, NA, 1))

#> ▁ ▄ █                                                                           

See also

spark_line()