Is your feature request related to a problem? Please describe.
Add stats by week number.
Describe the solution you'd like
Use strftime(foo, format = "%U") to get week number then calculate stats.
Get by week and year-week.
Describe alternatives you've considered
strftime easiest way to get week number.
Additional context
Alternative Week Number versions in strftime.
Is your feature request related to a problem? Please describe.
Add stats by week number.
Describe the solution you'd like
Use strftime(foo, format = "%U") to get week number then calculate stats.
Get by week and year-week.
Describe alternatives you've considered
strftime easiest way to get week number.
Additional context
Alternative Week Number versions in strftime.