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Role
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Description
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Roles
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Analysis
variables
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specifies the numeric
variables for which you want statistics. You must assign at least
one variable to this role.
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Classification
variables
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specifies the character
or discrete numeric variables that are used to divide the input data
into categories or subgroups. The statistics are calculated on all
selected analysis variables for each unique combination of classification
variables.
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Additional Roles
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Group analysis
by
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enables you to obtain separate
analyses of observations for each unique group.
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Frequency
count
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lists a numeric variable whose
value represents the frequency of the observation. If you assign a
variable to this role, the task assumes that each observation represents n observations,
where n is the value of the frequency variable.
If n is not an integer, SAS truncates it. If n is
less than 1 or is missing, the observation is excluded from the analysis.
The sum of the frequency variable represents the total number of observations.
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Weight variable
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If you assign a variable
to this role, the value of the variable for each observation is used
to calculate weighted means, variances, and sums. You can assign a
maximum of one variable to this role.
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