The FOREST ProcedureOverviewGetting StartedSyntaxDetailsExamplesReferencesINPUT Statement INPUT variables </ LEVEL=INTERVAL | NOMINAL>; The INPUT statement names input variables that share a common option. You can specify the INPUT statement multiple times. You can specify the following option: LEVEL=INTERVAL | NOMINAL specifies the level of measurement of the variables. You can specify the following values: INTERVALspecifies that the level of measurement of the variables is interval. NOMINALspecifies that the level of measurement of the variables is nominal. By default, LEVEL=INTERVAL for numeric variables and LEVEL=NOMINAL for categorical variables. Copyright © SAS Institute Inc. All rights reserved.Last updated: November 11, 2020