Download Jmp User Guide

236 Reshaping Data Chapter 7
Splitting Columns
Figure 7.13 Rename the New Columns for Clarity
Rename the columns,
if you choose.
Splitting a Column: Grouping Rows Example
You can use the Group field in the Split window to reduce the number of rows in the new table as
follows:
1 This example begins with the same Popcorn.jmp data table used in the previous example, “Splitting
a Column: Basic Example,” p. 233. In Figure 7.14, notice that there are only two unique values in
the popcorn column: plain and gourmet. For this example, you want to split the yield column by
the trial column again, but also group all the data for plain popcorn in one row and all the data for
gourmet popcorn in another.
Figure 7.14 Original Data Table before Splitting and Grouping
For this example, the yield column
will be split by the trial column as
before. Grouping by the popcorn
column will reduce the number of
rows in the new table.
2 Select Tables > Split.
3 Drag trial to the Split By field and drag yield to the Split Columns field, and select the Keep All
choice. (To this point, these settings are the same as those in “Splitting a Column: Basic Example,”
p. 233.)
4 Drag the popcorn column to the Group field.
5 Name the output data table Rows grouped by Popcorn column.
Figure 7.15 shows these settings.