WEEKVw. Format

Writes a week number in decimal format by using the V algorithm.

Category:	Date and Time
Alignment:	Left

Syntax

Syntax

WEEKVw.

Syntax Description

w

specifies the width of the output field.

Default	11
Range	3–200

Details

The WEEKVw. format writes the various formats depending on the specified width. Algorithm V calculates the SAS date value, with the number-of-the-week value represented as a decimal number in the range 01–53, with a leading zero and maximum value of 53. Weeks begin on a Monday and week 1 of the year is the week that includes both January 4 and the first Thursday of the year. If the first Monday of January is 2, 3, or 4, the preceding days are part of the last week of the preceding year. For example, the fifth week of the year would be represented as 06.

Refer to the following table for widths, formats, and examples:

Width	Format	Example
3-4	Www	w01
5-6	yyWww	12W01
7-8	yyWwwdd	12W0101
9-10	yyyyWwwdd	2012W0101
11-200	yyyy-Www-dd	2012-W01-01

Comparisons

The WEEKVw. format writes the week number as a decimal number in the range 01–53.Weeks that begin on a Monday and week 1 of the year include January 4 and the first Thursday of the year. If the first Monday of January is 2, 3, or 4, the preceding days are part of the last week of the preceding year. The WEEKWw. format writes the week number of the year as a decimal number in the range 00–53, with Monday as the first day of week 1. The WEEKUw. format writes the week number of the year (with Sunday as the first day of the week) as a decimal number in the range 0–53, with a leading zero.

Example

sasdate='31JAN2012'd;

Statement	Result
	----+----1----+
v=put(sasdate,weekv3.); w=put(sasdate,weekv5.); x=put(sasdate,weekv7.); y=put(sasdate,weekv9.); z=put(sasdate,weekv11.); put v; put w; put x; put y; put z;	W05 12W01 12W0502 2012W0502 2012-W05-02

Statement

Result

----+----1----+

v=put(sasdate,weekv3.);
w=put(sasdate,weekv5.);
x=put(sasdate,weekv7.);
y=put(sasdate,weekv9.);
z=put(sasdate,weekv11.);
put v;
put w;
put x;
put y;
put z;






W05
12W01
12W0502
2012W0502
2012-W05-02

WEEKVw. Format

Syntax

Syntax Description

w

Details

Comparisons

Example

See Also