STAGEVARS Variables (CSPLAN command)
The following table shows available STAGEVARS variables. See the CSSELECT algorithms document for a detailed
explanation of each quantity.
If the default variable name is used, a numeric suffix that corresponds to the stage number is added to the root shown below. All names end in an underscore—for example, InclusionProbability_1_.
| Keyword | Default root name | Description | Generated automatically when sample executed? |
|---|---|---|---|
INCLPROB
|
InclusionProbability_ | Stagewise inclusion (selection) probabilities. The proportion of units drawn from the population at a particular stage. | Yes |
CUMWEIGHT
|
SampleWeightCumulative_ | Cumulative sampling weight for a given stage. Takes into account prior stages. | Yes |
INDEX
|
Index_ | Duplication index for units selected in a given stage. The index uniquely identifies units selected more than once when sampling is done with replacement. | Yes, when sampling is done with replacement. |
POPSIZE
|
PopulationSize_ | Population size for a given stage. | No |
SAMPSIZE
|
SampleSize_ | Number of units drawn at a given stage. | No |
RATE
|
SamplingRate_ | Stagewise sampling rate. | No |
WEIGHT
|
SampleWeight_ | Sampling weight for a given stage. The inverse of the stagewise inclusion probability. Stage weights are positive for each unit selected in a particular stage. | No |