scales (version 1.2.1)

label_bytes: Label bytes (1 kB, 2 MB, etc)

Description

Scale bytes into human friendly units. Can use either SI units (e.g. kB = 1000 bytes) or binary units (e.g. kiB = 1024 bytes). See Units of Information on Wikipedia for more details.

Usage

label_bytes(units = "auto_si", accuracy = 1, scale = 1, ...)

Value

A labeller function that takes a numeric vector of breaks and returns a character vector of labels.

Arguments

units

Unit to use. Should either one of:

• "kB", "MB", "GB", "TB", "PB", "EB", "ZB", and "YB" for SI units (base 1000).

• "kiB", "MiB", "GiB", "TiB", "PiB", "EiB", "ZiB", and "YiB" for binary units (base 1024).

• auto_si or auto_binary to automatically pick the most appropriate unit for each value.

accuracy

A number to round to. Use (e.g.) 0.01 to show 2 decimal places of precision. If NULL, the default, uses a heuristic that should ensure breaks have the minimum number of digits needed to show the difference between adjacent values.

Applied to rescaled data.

scale

A scaling factor: x will be multiplied by scale before formatting. This is useful if the underlying data is very small or very large.

...

Other arguments passed on to number()

See Also

Other labels for continuous scales: label_dollar(), label_number_auto(), label_number_si(), label_ordinal(), label_parse(), label_percent(), label_pvalue(), label_scientific()

Other labels for log scales: label_log(), label_number_si(), label_scientific()

Examples

demo_continuous(c(1, 1e6))
demo_continuous(c(1, 1e6), labels = label_bytes())

# Auto units are particularly nice on log scales
demo_log10(c(1, 1e7), labels = label_bytes())

# You can also set the units
demo_continuous(c(1, 1e6), labels = label_bytes("kB"))

# You can also use binary units where a megabyte is defined as
# (1024) ^ 2 bytes rather than (1000) ^ 2. You'll need to override
# the default breaks to make this more informative.
demo_continuous(c(1, 1024^2),
  breaks = breaks_width(250 * 1024),
  labels = label_bytes("auto_binary")
)