how to apply the ANOVA in categorical data? and
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Check out Introduction to Categorical Data Analysisfor the answer.
in categorical variable, it is not advisable to do ANOVA which will be advice to apply for quantitative variable. they are lots of categorical test like, MLR, LR, LOG LINEAR MODEL ETC.. the categorical data analysis always to be explored proportionate base result, i.e., comparative analysis like Odds Ratio, Relative risk, etc. one should remember always while apply the models, the approach must be based on your objective as well as clinical suggestion if it is clinical trail.
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