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yabwon
Meteorite | Level 14

It does not:

1    data _null_;
2    do date = '1jan2024'd to '7jan2024'd;
3      week_u=week(date, 'u');
4      week_v=week(date, 'v');
5      week_w=week(date, 'w');
6      format date yymmdd10.;
7      put (_ALL_) (=);
8    end;
9    run;

date=2024-01-01 week_u=0 week_v=1 week_w=1
date=2024-01-02 week_u=0 week_v=1 week_w=1
date=2024-01-03 week_u=0 week_v=1 week_w=1
date=2024-01-04 week_u=0 week_v=1 week_w=1
date=2024-01-05 week_u=0 week_v=1 week_w=1
date=2024-01-06 week_u=0 week_v=1 week_w=1
date=2024-01-07 week_u=1 week_v=1 week_w=1
NOTE: DATA statement used (Total process time):
      real time           0.01 seconds
      cpu time            0.01 seconds

Did you read documentation for week()

 

Bart

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PaigeMiller
Diamond | Level 26

The documentation explains it clearly

 

The WEEK function with the U descriptor reads a SAS date value and returns the number of the week within the year. The number-of-the-week value is represented as a decimal number in the range 0–53, with a leading zero and maximum value of 53. Week 0 means that the first day of the week occurs in the preceding year. The fifth week of the year is represented as 05.

--
Paige Miller
Antero
Calcite | Level 5

Google searches haven't  included those descriptors and I have missed them.

Thanks for pointing out the correct solutions!

ballardw
Super User

Start here : https://documentation.sas.com/?cdcId=pgmsascdc&cdcVersion=9.4_3.4&docsetId=pgmsashome&docsetTarget=h...

 

And search within the SAS documentation.

 

Depending on your install the online help could be quite extensive and no reason to "google".

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