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CEversole
5 Posts |
 Posted - 06/25/2021 : 1:44:06 PM
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I recently ran a binary logistic regression in which some variables are continuous and others are binary. When looking at the output associated with each category of the categorical variables, I see that Origin does not provide results associated with each category. In other words, it has included data for some categories (e.g., coefficients, SE, Wald test, p-value), but has completely omitted other categories from the output. Is there any explanation as to why some categories are completely omitted/left out??
Any help is greatly appreciated. |
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YimingChen
1685 Posts |
Posted - 06/25/2021 : 1:56:58 PM
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Can you attach a screenshot showing the issue?
James |
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CEversole
5 Posts |
Posted - 06/25/2021 : 2:24:00 PM
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As you will see in this screen shot, the year "2013" (one of the categories in the "year" variable) is omitted in the results output; however, it is included in the input data set. Thank you.
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CEversole
5 Posts |
Posted - 06/25/2021 : 2:38:16 PM
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YimingChen
1685 Posts |
Posted - 06/25/2021 : 3:37:52 PM
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You must set year "2013" as reference factor level in the dialog. The fitted coefficients of all other years are referencing to 2013.
James |
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CEversole
5 Posts |
Posted - 06/25/2021 : 3:56:07 PM
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Ok, yes, I've done that (see attached). How do I get the results associated with 2013 when it is set as a reference factor? When 2013 is used as the reference factor level, its not included in the results output (as in my previous post). Thank you for any information. |
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Categorical variables in binary logistic regressio