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Create a (shifted) sequence of Datetimes for axis breaks

Source: R/visualize_helper.R
Datetime_breaks.Rd

Take a vector of Datetimes and create a sequence of Datetimes with a given shift and interval. This is a helper function to create breaks for plotting, e.g. in gg_days(), and is best used in conjunction with Datetime_limits(). The function is a thin wrapper around seq().

Usage

Datetime_breaks(x, shift = lubridate::duration(12, "hours"), by = "1 day")

Arguments

x

a vector of Datetimes

shift

a numeric giving the number of duration object, e.g. lubridate::duration(12, "hours")

by

a character scalar giving the unit of the interval in base::seq()

Value

a vector of Datetimes

Examples

dataset <- c("2023-08-15", "2023-08-20")
Datetime_breaks(dataset)
#> [1] "2023-08-15 12:00:00 UTC" "2023-08-16 12:00:00 UTC"
#> [3] "2023-08-17 12:00:00 UTC" "2023-08-18 12:00:00 UTC"
#> [5] "2023-08-19 12:00:00 UTC"
Datetime_breaks(dataset, shift = 0)
#> [1] "2023-08-15 UTC" "2023-08-16 UTC" "2023-08-17 UTC" "2023-08-18 UTC"
#> [5] "2023-08-19 UTC" "2023-08-20 UTC"
Datetime_breaks(dataset, by = "12 hours")
#>  [1] "2023-08-15 12:00:00 UTC" "2023-08-16 00:00:00 UTC"
#>  [3] "2023-08-16 12:00:00 UTC" "2023-08-17 00:00:00 UTC"
#>  [5] "2023-08-17 12:00:00 UTC" "2023-08-18 00:00:00 UTC"
#>  [7] "2023-08-18 12:00:00 UTC" "2023-08-19 00:00:00 UTC"
#>  [9] "2023-08-19 12:00:00 UTC" "2023-08-20 00:00:00 UTC"