Have a tibble with ID (integer) and Edate (dttm) columns. Need to calculate the standard deviation (in seconds, minutes, hours, or days, etc. - what ever is appropriate for human consumption) of Edates grouped by ID
summarize(EdateSD = sd(Edate))
How would I make this work with lubridate? Looking at the Timespan-class but can't quite see how to do it.
Thanks for advice!