PROC ASTORE is used to score new observations in SAS. Which PROC ASTORE statement option specifies where the model's input variables and types are defined?
Select an answer to reveal the explanation.
Short Explanation and Infographic
Here's the deal — a is correct because the ASTORE object (referenced by RSTORE=) is a self-contained model artifact that includes the model's input variable names, types, and expected formats. PROC ASTORE reads this metadata from the ASTORE to validate and prepare the scoring input.
Full explanation below image
Full Explanation
A is correct because the ASTORE object (referenced by RSTORE=) is a self-contained model artifact that includes the model's input variable names, types, and expected formats. PROC ASTORE reads this metadata from the ASTORE to validate and prepare the scoring input. B is partially true (DESCRIBE can output this info) but it is not required before scoring. C is wrong; COPYVARS= passes through additional non-model variables to the output, not the model input schema. D is wrong; FORMAT statements format output variables, not define model input schemas.