The MINSPANTREE statement invokes an algorithm that solves the minimum link-weighted spanning tree problem on an input graph.
The minimum spanning tree problem is described in the section Minimum Spanning Tree.
You can specify the following options in the MINSPANTREE statement:
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LOGLEVEL=number | string
controls the amount of information that is displayed in the SAS log. Table 35 describes the valid values for this option.
Table 35: Values for LOGLEVEL= Option
| number | string | Description |
|---|
| 0 | NONE | Turns off all algorithm-related messages in the SAS log |
| 1 | BASIC | Displays a basic summary of the algorithmic processing |
| 2 | MODERATE | Displays a summary of the algorithmic processing |
| 3 | AGGRESSIVE | Displays a detailed summary of the algorithmic processing |
The default is the value that is specified in the LOGLEVEL= option in the PROC OPTGRAPH statement (or BASIC if that option is not specified).
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OUT=SAS-data-set
specifies the output data set to contain the solution to the minimum link-weighted spanning tree problem.