[Gretl-users] Re: string to epoch

I was playing with the nice COVID international data set available at https://github.com/owid/covid-19-data/tree/master/public/data The csv file contains a "date" column, that gretl reads as a string-valued series. In order to turn it into proper dates, I ended up writing this little function that turns a string valued series holding dates into a numeric string holding the epoch day. The requisite is that the string is organised as year-month-day, with an arbitrary delimiter that must be passed as the optional second parameter to the function (default: dash).