Calculate Growing Degree Days (GDD)

A wrapper on gsdd::gdd() to get the Growing Degree Days up to a date for the longest growing season.

Usage

gdd(x, end_date = as.Date("1972-09-30"), min_length = 60, msgs = TRUE)

Arguments

x

A data frame with two columns date and temperature. date, which must be of class Date provides the dates and temperature which must be a numeric vector provides the mean daily water temperature in degrees centigrade.

end_date

A Date scalar of the last date within each year to consider (the year is ignored).

min_length

A whole number of the minimum number of values to consider.

msgs

A flag specifying whether to provide messages.

See also

gsdd::gdd(), gsdd() and gss().

Examples

gdd(gsdd::temperature_data)
#> # A tibble: 1 × 2
#>    year   gdd
#>   <int> <dbl>
#> 1  2019 3605.