1.
Select Help > Sample Data Library and open Big Class.jmp and New Heights.jmp.
The Big Class.jmp table contains the original data, and the New Heights.jmp table contains the updated data.
2.
From the Big Class.jmp table, select Tables > Update.
3.
In the Update...with data from box, select New Heights.
4.
Select Match columns.
5.
In the Big Class and New Heights lists, select name.
6.
Click Match.
This tells JMP to use name as the match column value, since it is the column whose values uniquely describe each row.
7.
The Updated Big Class.jmp Table

Help created on 9/19/2017