Summaries of Groups (Tabulation)
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This menu produces summaries of data values classified into different groups. Tables of results can be saved by specifying the names to save the results in using the store menu and then clicking on Run.

Variate

Specifies a variate containing the data values.

Groups

The groups are specified by one or more factors, each of which must have the same length as the data variate. The button allows multiple selections to be copied from Available Data.

Weights

A variate specifying weights to be used in the tabulation.

Available Data

This lists data structures appropriate to the current input field. The contents will change as you move from one field to the next, displaying either variates or factors. Double-click on a name to copy it to the current input field; alternatively, you can type in the name directly.

Display table as percentage of margin

This allows the body of the table to be expressed as percentages of the corresponding values of the selected margin. The margin to be used as the denominator can be chosen by selecting the required factor from the drop-down list.

Set Margin

Specifies whether the tables should include margins (summaries over all levels of each factor).

Type of Summary

Check the statistics that you want to produce.
TotalsTotals of values within groups
No. of ObservationsNumber of observations within each group
MeanMean of the sample for each group
MedianMedian value that divides each grouped sample into two equally sized sets
MinimamMinimum value in sample
MaximaMaximum value in sample
VarianceVariance of the sample for each group
Standard DeviationStandard deviation of the sample for each group
QuantilesSpecify the quantiles required within the quantile percentage points field.
More summary statistics such as standard error of the mean, skewness, and kurtosis can be selected by clicking on the more button.

Quantile Percentage Points

Specifies a list of percentage points for which quantiles will be calculated. You can also supply the name of a variate containing the required values.

Multi-Response Tables

Displays two additional options for producing summaries of tables classified by multiple-response factors.

Pointers to Factors Defining Multiple Responses

A pointer to factors defining multiple responses in the table. You can form a pointer to factors for a multiple-response table using the Form Multiple-Response Factors menu.

Names for factors to index multiple-responses

GenStat generates an ordinary factor to classify each dimension of the table corresponding to multiple responses. You can specify names for these factors in the space provided.

Action Buttons

RunRun tabulation of groups.
CancelClose the menu without further changes.
DefaultsSet the menu settings back to the default settings. Clicking the right mouse on this button produces a shortcut menu where you can choose to set the menu using the currently stored defaults or the GenStat default settings.
StoreOpens a dialog to specify names of structures to store the results from the tabulation. The names to save the structures should be supplied before running the tabulation.

See Also