YYWEEKVw. Format

Writes a week number in decimal format by using the V algorithm, excluding day-of-the-week information.

Category:	Date and Time
Alignment:	left

Syntax

Details

Comparisons

Example

Syntax

YYWEEKVw.

Syntax Description

w: specifies the width of the output field.

Default:7

Range:3–8

Details

The YYWEEKVw. 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 4th and the first Thursday of the year. If the first Monday of January is the 2nd, 3rd, or 4th, 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:

Widths	Formats	Examples
3-4	Www	w01
5-6	yyWww	07W01
7	yyyyWww	2007W01
8	yyyy-Www	2007-W01
9-above	invalid	invalid

Comparisons

The YYWEEKVw. format is similar to the WEEKVw. format except that the YYWEEKVw. format does not specify the day-of-week information. Also, the YYWEEKVw. format does not accept a width that is greater than 8.

Example

sasdate = '01JAN2007'd;

Statements	Results
	----+----1----+
u=put(sasdate,yyweekv3.); v=put(sasdate,yyweekv4.); w=put(sasdate,yyweekv5.); x=put(sasdate,yyweekv6.); y=put(sasdate,yyweekv7.); z=put(sasdate,yyweekv8.); put u; put v; put w; put x; put y; put z;	W01 W01 07W01 07W01 2007W01 2007-W01

Statements

Results

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

u=put(sasdate,yyweekv3.);
v=put(sasdate,yyweekv4.);
w=put(sasdate,yyweekv5.);
x=put(sasdate,yyweekv6.);
y=put(sasdate,yyweekv7.);
z=put(sasdate,yyweekv8.);
put u;
put v;
put w;
put x;
put y;
put z;

YYWEEKVw. Format

Syntax

Syntax Description

Details

Comparisons

Example

See Also