The data can be organized in the following ways:
- Each case is a unit with a subgroup identifier that
is specified with a
BY variable. Table 1 is an example of this type of data organization. The data do not
have to be sorted by subgroup.
- Each case is a subgroup and there are as many variables
as individuals within one sample. Table 2 shows this type of
organization.
- Each case is a unit and there are no subgroups. Table 3 shows this type of organization. Cases are not sorted or aggregated
before plotting.
Table 1. Each
case is a unit with a subgroup identifier
| Subgroup |
Length |
| 8:50 |
6.35 |
| 11:30 |
6.39 |
| 8:50 |
6.40 |
| 11:30 |
6.46 |
| 8:50 |
6.32 |
| 11:30 |
6.37 |
| 8:50 |
6.39 |
| 11:30 |
6.36 |
| ... |
... |
Table 2. Each
case is a subgroup
| N1 |
N2 |
N3 |
N4 |
| 6.35 |
6.40 |
6.32 |
6.39 |
| 6.39 |
6.46 |
6.37 |
6.36 |
| ... |
... |
... |
... |
Table 3. Each
case is a unit and there are no subgroups
| pH |
| 4.9 |
| 4.5 |
| 4.7 |
| 5.1 |
| 4.6 |
| 5.1 |
| 4.9 |
| 4.8 |
| ... |