Using JMP - SAS

194 Reshape Data Chapter 6
Join Data Tables
Examples of a Cartesian Join
When doing a Cartesian join, JMP joins two tables in a Cartesian fashion, where a new table is created that
consists of all possible combinations of the rows from two original tables. This creates cases in the output
table where there are one case for each combination of column values.
Simple Example
1. Open the Species1.jmp and Species2.jmp sample data tables.
2. From the Species1.jmp table, select Tables > Join.
3. In the Join...with box, select Species2.
4. From the Matching Specification menu, select Cartesian Join.
5. Click OK.
Figure 6.26 Joining Tables Using Cartesian Join
The data in Species1.jmp is crossed with the data in Species2.jmp to produce the joined table, which
shows all combinations of the values in each set.
Complex Example
In this example, use the Tables > Join command twice:
• The first join combines the Oil Amount.jmp table with the Batch.jmp table using the Cartesian option.
• The second join combines the resulting table (Cartesian oil amount + batch) with the Popcorn
Type.jmp table and produces a final table with all tables joined.
1. Open the Oil Amount.jmp, Batch.jmp, and Popcorn Type.jmp sample data tables.
2. From the Oil Amount.jmp table, select Tables > Join.
3. In the Join...with box, select Batch.
4. From the Matching Specification menu, select Cartesian Join.
5. Under Output table name, type Oil Amount and Batch.
6. Click OK.