Method not defined for "Interval `%within%` list"

[mcanouil]

Hi,

it seems that using an interval as LHS and a list of intervals as RHS is not implemented.
The current documentation implies it is supposed to work:

• a An interval or date-time object.
• b Either an interval vector, or a list of intervals.

library(lubridate)
#> 
#> Attachement du package : 'lubridate'
#> Les objets suivants sont masqués depuis 'package:base':
#> 
#>     date, intersect, setdiff, union
int <- interval(ymd("2001-01-01"), ymd("2002-01-01"))
int2 <- interval(ymd("2001-06-01"), ymd("2002-01-01"))
int2 %within% list(int)
#> Error in int2 %within% list(int): No %within% method with signature a = Interval,  b = list

^{Created on 2021-10-06 by the reprex package (v2.0.1)}

[vspinu]

LHS should be a date-time:

> today() %within% list(int)
[1] FALSE
> now() %within% list(int)
[1] FALSE

If you want to implement a %within% method for (interval, list) you are more than welcome of course :)

[mcanouil]

I wanted to be sure, if the documentation is wrong, or if the method is missing because from the documentation and I quote, LHS should be "An interval or date-time object" and RHS "Either an interval vector, or a list of intervals", meaning the following combinations are supposed to work :

• date %within% c(interval)
• interval %within% c(interval)
• date %within% list(interval)
• interval %within% list(interval)

library(lubridate)

int <- interval(ymd("2001-01-01"), ymd("2002-01-01"))
int2 <- interval(ymd("2001-06-01"), ymd("2002-01-01"))

ymd("2001-05-03") %within% int
#> TRUE
int2 %within% int
#> TRUE
ymd("2001-05-03") %within% list(int)
#> TRUE
int2 %within% list(int)
#> Error in int2 %within% list(int) :
#>   No %within% method with signature a = Interval,  b = list

I'll have a look at how the other methods are implemented to add the missing combination via a PR (if no one else take care of it first).

[vspinu]

Ok, I see. Actually (int, int) is working, so should be (int, list). You are right.

[vspinu]

I took care of it. Thanks for bringing in!