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224 Reshaping Data Chapter 7
Creating a Subset Data Table
– Selected columns Creates a subset table that contains only the columns from the active table.
4 Use the following table to further customize your subset table:
Action
Output table name
Link to original data table
Copy formula
Suppress formula evaluation
Keep dialog open
Instructions
To give a name to the subset table, type a name in the box
beside Output table name.
To keep the subset table and any plot or graph of that subset
table linked to the original table, click the box beside Link to
original data table.
To include formulas from the original table in the output
columns, click the box beside Copy formula. Include all
columns needed for the calculation of the formula. This
option is not present when there are no formulas in the data
table.
To prevent JMP from evaluating columns’ formulas when the
new table is created, click the box beside Suppress formula
evaluation. This option is not present when there are no
formulas in the data table.
To keep this window open after clicking OK, check the box
beside Keep Dialog Open.
Tip: To quickly create a subset table, highlight the rows you would like to subset, press the Shift key
and select Tables > Subset. JMP creates a linked subset table without asking you to complete the
Subset window.
Stratified Subsets
If you specify a sample size and add stratification columns, the sample size represents the size per
stratum, rather than the size of the whole subset.
There are also two columns that can be saved for stratified random subsets, Selection Probability and
Sampling Weight. Check the corresponding check box to save these columns.