DEEPPRICE Procedure
INSTRUMENT Statement
INSTRUMENT variable;
The INSTRUMENT statement specifies the instrumental variable in the data table. The variable must be numeric in the input data table.
The instrumental variable cannot be the same as any of the following: the ID variable that you specify in the ID statement; the treatment variables or covariates that you specify in the TREATMENT statement; or the outcome variable or covariates that you specify in the MODEL statement.
When you are scoring by using the INT=, INETA0=, or INETA1= option in the SCORE statement for a treatment model that contains the instrumental variable, you must specify the INSTRUMENT statement in exactly same way (by using the same instrumental variable name) that you specify the INSTRUMENT statement used in the previous call of PROC DEEPPRICE that generates the corresponding OUTT=, OUTETA0=, or OUTETA1= table.