Format timespan data as h:mm:ss

Convert numeric timespan data to h:mm:ss format for pretty plotting. Inspired by ggplot2::scale_x_time().

Usage

format_hmmss(x)

Arguments

x

A numeric vector.

Value

A character vector the same length as x.

Details

If all values are less than 3600 (1 hour), then format is returned as mm:ss. If any value is greater than 3600, format is returned as h:mm:ss with leading zeroes.

Examples

x = 0:120
y = sin(2 * pi * x / 15) + rnorm(length(x), 0, 0.2)

library(ggplot2)
data.frame(x, y) |>
    ggplot(aes(x, y)) +
    theme_mnirs() +
    scale_x_continuous(
        breaks = breaks_timespan(),
        labels = format_hmmss
    ) +
    geom_line()