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256 Reshaping Data Chapter 7
Updating a Data Table
Figure 7.39 Table Joined by Matching Columns
Updating a Data Table
If you have two data tables and would like to update one table with data from a second table, select
Tables > Update. The Update command is a special case of Join in place. It is a Join with the Update
option checked, and no new table.
Before updating a table, make sure the name of the column containing the values you want to replace is
the same as the name of the column containing the data you want to replace it with.
To replace values in the active table with those found in another open table
1 Click the table you want to update (this is the table whose values will be replaced) to make it the
active table.
2 Select Tables > Update. In the window that appears, the name of the active table is shown above
the list, as shown in Figure 7.40.
Figure 7.40 Updating a Table
3 Highlight the table that contains the data you want to transfer.
4 If you do not want JMP to replace the values in the first table with any missing values found in the
second table, click the box beside Ignore missing. The first table will retain its original values if they