[R] Reporting missing dates

[PIKAL Petr]

Your approach is quite simple and works well

Another option is
as.Date(setdiff(date_range, d), origin="1970-01-01")
but I do not believe that it has some advantage above yours.

Cheers
Petr

> -----Original Message-----
> From: R-help <r-help-bounces using r-project.org> On Behalf Of Jeff Reichman
> Sent: Wednesday, January 15, 2020 10:28 PM
> To: R-help using r-project.org
> Subject: [R] Reporting missing dates
> 
> R-help Forum
> 
> I have a 20 year data set and I am looking for a way to find missing
dates.
> I wrote this and its works, but am wounding if there is a better way?
> 
> d <- c('2020-01-01', '2020-01-02', '2020-01-04', '2020-01-05')
> d <- as.Date(d)
> date_range <- seq(min(d), max(d), by = 1)
> date_range[!date_range %in% d]
> 
> 
> Sincerely
> 
> Jeff Reichman
> 
> 
> 	[[alternative HTML version deleted]]
> 
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