How do you perform nominal multi class logistic regression

2017 8 31
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I'm performing logistic regression on with 6 nominal categories "A-F". I'm using fitcecoc. Which option should I specify for 'Coding' to perform nominal classification?

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Chris Perkins
Chris Perkins 2017-9-7

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Hi Jason,
You should be able to use the example 'Train Multiclass Linear Classification Model' on the documentation page for "fitcecoc": https://www.mathworks.com/help/stats/fitcecoc.html
This example uses categoricals, which by default are nominal, as input to "fitcecoc". See more about categoricals at the documentation page: http://www.mathworks.com/help/matlab/ref/categorical.html
You shouldn't need to set 'Coding' to achieve nominal classification.
Good luck!

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Jason Gunther
Jason Gunther 2017-9-15
编辑：Jason Gunther 2017-9-15
how does this compare to using multinomial logistic regression, mnrfit? The number of learners is 15 in the case fitcoec and 5 in the case of mnrfit.

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