This Natural profile parameter specifies the range of years covered by the "year sliding window" or "year fixed window".
The sliding-window or "year fixed window" mechanism assumes a date with a 2-digit year to be within a "window" of 100 years. Within these 100 years, every 2-digit year setting is uniquely related to a specific century, so that there is no confusion about which century is meant.
| Possible settings | Normal Setting | 0 |
When you set the parameter to "0", the current century is assumed. No sliding or fixed-window mechanism is used. |
|---|---|---|---|
| Sliding Window | 1 - 99 |
By setting the parameter to a value between
"1-99", you determine when the 100-year range begins
in the past. The Example:
If the current year is 2002 and you specify |
|
| Fixed Window | 1582-2600 |
By setting the parameter to a value between "1582-2600", you determine the first year of a 100-year range. The upper boundary of the 100-year range is evaluated by adding "99" to the value specified. Example:
If you specify |
|
| Default setting | 0 |
No sliding or fixed-window mechanism is used. | |
| Dynamic specification | yes | ||
| Specification within session | no | ||
The YSLW parameter is evaluated at runtime when an
alphanumeric date setting with a 2-digit year component is moved into a date
variable. This applies to data settings which are:
used with the mathematical function
VAL;
used with the IS(D) option in a logical condition;
read from the stack as input data;
or entered in a map as input data.
See also the section Processing of Date Information in the Programming Guide.
