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Statistical Procedures
 

BART Procedure

SAMPSUMMARY Statement

  • SAMPSUMMARY OUT=libref.data-table <keyword=name>…<keyword=name>;

The SAMPSUMMARY statement creates a data table that contains a summary of the sum-of-trees ensemble samples.

You must specify the following option:

OUT=libref.data-table

names the output data table for PROC BART to use. You must specify this option before any other options. libref.data-table is a two-level name, where

libref

refers to a collection of information that is defined in the LIBNAME statement and includes the library, which includes a path to where the data table is to be stored. For more information about libref, see the section Using SAS Viya Workbench.

data-table

specifies the name of the output data table.

You can also specify the following keywords:

AVGNODE<=name>

names the variable that contains the average number of nodes per tree in the sample. The default name is AvgNode.

PROPACCEPTED<=name>

names the variable that contains the proportion of accepted tree modifications for the sample. The default name is PropAccepted.

SAMPSAVED<=name>

names the variable that contains an indicator for whether the sample is saved for prediction. The default name is SampSaved.

VARIANCE<=name>

names the variable that contains the sampled variance for the normal response model. The default name is Variance.

Last updated: May 14, 2026