how to use categorical variable to improve classification in a dataset? how can you make dummy statistics for categorical variables what to build categorical variable how to use categorical variables how do you improve classification with categorical variables? what's an approach to categorical variables? how to improve classification using categorical variable how to improve classification with categorical variables what is the categorical variable approach how many categorical variables in a dummy variable how to build classifier in classification with multiple categorical variables how to classify a large dataset how to improve classification using categorical variable how to make categorical variables more discriminative how to improve classification with categorical variables how to improve classification in excel how do you classify a dataset with multiple categorical variables how to improve classification with categorical variables how to do categorical classifier how are categorical variables used