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Chapter 7 Reshaping Data 239
Transposing Rows and Columns
Option in JMP
By
Transpose Selected Rows
Only
Output table name
Description
To organize the transpose into groups based on the
columns you put in the By box, highlight column
name(s) in the Select Columns box whose values you
want to see as a group, and click By.
To transpose only rows that are currently highlighted in
the active table, click the box beside Transpose Selected
Rows Only.
To name the subset table, type a name in the box beside
Output table name.
7 Reshaping Data
Keep dialog open
To keep this window open after clicking OK, check the
box beside Keep Dialog Open.
3 Click Transpose. The transposed data table appears. The new table will have an additional column
called Label whose values are the column names of the original table.
The following rules apply to transposing:
Table 7.1 Rules for Transposing
If
The original table has
columns but no rows
The original table has
one column and it is
assigned to Label
The original table has
multiple columns and
contains a label column
There is no label
column in the original
table
Then
The new table contains one column that lists those column names.
Its values become the column names in the transposed table.
JMP automatically inserts the label column into the Label box when the
window appears.
The column names in the transposed table are Row 1, Row 2, …, Row
n where n is the number of rows in the original table.
Examples of Transposing
The original table in Figure 7.18, which is the table on the top, has two rows and three continuous
columns called plastic, tin, and gold. Selecting Tables > Transpose creates the transposed table on the
bottom of the page. The transposed table has a row for each of the three columns in the example table
and columns named Row 1 and Row 2 for the original table’s rows. The additional column called
Labels has the column names (plastic, tin, and gold) from the original table as values, ‘plastic,’ ‘tin,’
and ‘gold.’