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Golf
Quartz | Level 8

Hello,

   I have a single equation, where lwage is the dependent variable,  there are 15 independent variables and one of them (educ) is an endogenous varaibles.   A exogenous variable, nearc4, is used as the instrumental variable.   I use the following procedure in SAS and get the error message.

 

Capture.PNG

Here is the results.

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Can you help me out from the problem?   I apply the same data set to STATA, and I can get the result without problems.

Thank You.

1 ACCEPTED SOLUTION

Accepted Solutions
PaigeMiller
Diamond | Level 26

What is NEARC4? Where would SAS find it?

 

Is it a variable in your input data set, or something computed? Obviously, it is neither, and so SAS doesn't know how to use NEARC4.

--
Paige Miller

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4 REPLIES 4
PaigeMiller
Diamond | Level 26

The WARNING message seems clear to me.

 

WARNING: The variable nearc4 is not defined in the program
--
Paige Miller
Golf
Quartz | Level 8
Dear Miller,
How to make nearc4 defined in the program. (I understanded that nearc4 was already defined in the INSTRUMENT statement)
Thank You,
PaigeMiller
Diamond | Level 26

What is NEARC4? Where would SAS find it?

 

Is it a variable in your input data set, or something computed? Obviously, it is neither, and so SAS doesn't know how to use NEARC4.

--
Paige Miller
Golf
Quartz | Level 8
Dear Miller,
You are right. nearc4 is in another data file. I used the wrong data set.
Thank You for your time.
Bests,

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