X13 Procedure
SAS Predefined Events
SAS predefined events are summarized in this section. For complete details about SAS predefined events, see the section "EVENTKEY Statement" in SAS Forecast Studio: User's Guide.
Table 11 shows a summary of the SAS predefined event keywords. Table 12 lists the holiday date keywords that can be used as SAS predefined events. Table 13 lists the seasonal date keywords that can be used as SAS predefined events.
Table 11: Definitions for EVENTKEY Predefined Event Keywords
| Variable Name or | Description | Qualifier Options |
|---|---|---|
| Variable Name Format | ||
| AO<obs>OBS | Outlier | TYPE=POINT VALUE=1 |
| AO<date>D | BEFORE=(DURATION=0) | |
| AO<datetime>DT | AFTER=(DURATION=0) | |
| LS<obs>OBS | Level-shift | TYPE=LS VALUE=1 |
| LS<date>D | BEFORE=(DURATION=0) | |
| LS<datetime>DT | AFTER=(DURATION=ALL) | |
| TLS<obs>OBS<n> | Temporary level-shift | TYPE=LS VALUE=1 |
| TLS<date>D<n> | BEFORE=(DURATION=0) | |
| TLS<datetime>DT<n> | AFTER=(DURATION=<n>) | |
| NLS<obs>OBS | Negative level-shift | TYPE=LS VALUE=–1 |
| NLS<date>D | BEFORE=(DURATION=0) | |
| NLS<datetime>DT | AFTER=(DURATION=ALL) | |
| CBLS<obs>OBS | US Census Bureau level-shift | TYPE=LS VALUE=–1 |
| CBLS<date>D | SHIFT=–1 | |
| CBLS<datetime>DT | BEFORE=(DURATION=ALL) | |
| AFTER=(DURATION=0) | ||
| TC<obs>OBS | Temporary change | TYPE=TC VALUE=1 |
| TC<date>D | BEFORE=(DURATION=0) | |
| TC<datetime>DT | AFTER=(DURATION=ALL) | |
| <date keyword> | Date pulse | TYPE=POINT VALUE=1 |
| BEFORE=(DURATION=0) | ||
| AFTER=(DURATION=0) | ||
| PULSE=DAY | ||
| LINEAR | Polynomial trends | TYPE=LIN |
| QUAD | TYPE=QUAD | |
| CUBIC | TYPE=CUBIC | |
| VALUE=1 BEFORE=(DURATION=ALL) | ||
| AFTER=(DURATION=ALL) | ||
| The default timing value is the 0 observation. | ||
| INVERSE | Trends | TYPE=INV |
| LOG | TYPE=LOG | |
| VALUE=1 BEFORE=(DURATION=0) | ||
| AFTER=(DURATION=ALL) | ||
| The default timing value is the 0 observation. | ||
| <seasonal | Seasonal | TYPE=POINT |
| keywords> | PULSE= depends on keyword | |
| VALUE=1 BEFORE=(DURATION=0) | ||
| AFTER=(DURATION=0) | ||
| Timing values are based on keyword. |
Table 12: Holiday Date Keywords and Definitions
| Date Keyword | Definition |
|---|---|
| BOXING | December 26 |
| CANADA | July 1 |
| CANADAOBSERVED | July 1, or July 2 if July 1 is a Sunday |
| CHRISTMAS | December 25 |
| COLUMBUS | Second Monday in October |
| EASTER | Easter Sunday |
| FATHERS | Third Sunday in June |
| HALLOWEEN | October 31 |
| JUNETEENTH | June 19 |
| JUNETEENTHUSG | Juneteenth date observed by |
| US government for | |
| Monday–Friday schedule | |
| JUNETEENTHUSPS | Juneteenth date observed by |
| US government for | |
| Monday–Saturday schedule | |
| (US Postal Service) | |
| LABOR | First Monday in September |
| MLK | Third Monday in January |
| MEMORIAL | Last Monday in May |
| MOTHERS | Second Sunday in May |
| N<n>W<w><MON>YR | Date specified by |
| NWKDOM( n, w, m, year ), | |
| where m corresponds to the month | |
| specified by MON and year | |
| is any year relevant to the data | |
| (example: N4W5NOVYR is the same as THANKSGIVING) | |
| NEWYEAR | January 1 |
| THANKSGIVING | Fourth Thursday in November |
| THANKSGIVINGCANADA | Second Monday in October |
| USINDEPENDENCE | July 4 |
| USPRESIDENTS | Third Monday in February (since 1971) |
| VALENTINES | February 14 |
| VETERANS | November 11 |
| VETERANSUSG | Veterans Day date that is observed by |
| US government for | |
| Monday–Friday schedule | |
| VETERANSUSPS | Veterans Day date that is observed by |
| US government for | |
| Monday–Saturday schedule | |
| (US Post Office) | |
| VICTORIA | Monday on or preceding May 24 |
Table 13: Seasonal Date Keywords and Definitions
| Date Keyword | Definition |
|---|---|
| SECOND_1, …, SECOND_60 | Specified second |
| MINUTE_1, …, MINUTE_60 | Beginning of the specified minute |
| HOUR_1, …, HOUR_24 | Beginning of the specified hour |
| SUNDAY, …, SATURDAY | All Sundays, and so on, in the time series |
| WEEK_1, …, WEEK_53 | First day of the nth week of the year |
(PULSE=WEEK.n shifts this date for  ) |
|
| TENDAY_1, TENDAY_4, | The first day of the month |
| …, TENDAY_34 | |
| TENDAY_2, TENDAY_5, | The 11th day of the month |
| …, TENDAY_35 | |
| TENDAY_3, TENDAY_6, | The 21st day of the month |
| …, TENDAY_36 | |
| SEMIMONTH_1, SEMIMONTH_3, | The first day of the month |
| …, SEMIMONTH_23 | |
| SEMIMONTH_2, SEMIMONTH_4, | The 16th day of the month |
| …, SEMIMONTH_24 | |
| JANUARY, …, DECEMBER | The first day of the specified month |
| QTR_1, QTR_2, QTR_3, QTR_4 | The first date of the quarter indicated after the underscore |
| (PULSE=QTR.n shifts this date for ) |
|
| SEMIYEAR_1, SEMIYEAR_2 | The first date of the semiyear |
| (PULSE=SEMIYEAR.n shifts this date for ) |
Last updated: June 19, 2025