SPSS® 12.0 Command Syntax Reference

DATE 435
• For DAY_, the starting value has to be specified, even though it is the same as the default,
because a periodicity is specified. The periodicity of 5 means that observations are
measured in a 5-day week.
• For HOUR_, a starting value of 1 is specified. The periodicity of 8 means that observations
occur in an 8-hour day.
Example 3
DATE reports the following:
Name Label
WEEK_ WEEK, not periodic
DAY_ DAY, period 5
HOUR_ HOUR, period 24
DATE_ DATE. FORMAT: "WWW D HH"
The following is a partial listing of the new variables:
WEEK_ DAY_ HOUR_ DATE_
1 1 1 1 1 1
1 1 2 1 1 2
1 1 3 1 1 3
1 1 4 1 1 4
1 1 5 1 1 5
...
1 1 22 1 1 22
1 1 23 1 1 23
1 2 0 1 2 0
1 2 1 1 2 1
1 2 2 1 2 2
...
4 5 16 4 5 16
4 5 17 4 5 17
4 5 18 4 5 18
DATE DAY 1 5 HOUR 3 8.
• This command creates four variables (DATE_, CYCLE_, DAY_, and HOUR_) in a file where
observations occur hourly.
• For HOUR_, the starting value is 3 and the periodicity is 8.
• For DAY_, the starting value is 1 and the periodicity is 5. Since DAY_ is the highest-order
variable and it has a periodicity assigned, variable CYCLE_ is automatically created.
DATE reports the following:
Name Label
CYCLE_ CYCLE, not periodic
DAY_ DAY, period 5
HOUR_ HOUR, period 8
DATE_ DATE. FORMAT: "CCCC D H"