For linear regression in SAS using proc reg, assuming I have a categorical independent variable coded "0" and "1", what level does sas automatically use as the reference? and Is there a way to specify what level to be used as a reference?
Thank you
The reference level is the one coded number zero, by definition. To change the reference, exchange the codes.
For easier and more sophisticated handling of categorical effects, use a regression procedure that allows the CLASS statement, such as GLM, MIXED or GLIMMIX.
The reference level is the one coded number zero, by definition. To change the reference, exchange the codes.
For easier and more sophisticated handling of categorical effects, use a regression procedure that allows the CLASS statement, such as GLM, MIXED or GLIMMIX.
Thank you so much for your response:)
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