Return the first valid date in a forecast — first

As of version 0.1.0 reading data is no longer done with a start date and end date, but rather a vector of date-time strings making these functions obsolete. unique_valid_dttm is now the more appropriate function to use.

The function is intended to be used to find the first date for which to fetch observations against which to verify.

Usage

first_validdate(.fcst)

last_validdate(.fcst)

Arguments

.fcst: A harp_fcst object or a table containing a column named validdate with the data in unix time format.

Value

The first valid time in YYYYMMDDhhmm format for the input object.