Preprocess categorical variables with many values
10256
Principled way of collapsing categorical variables with many levels?
146677
Create several new derived variables from existing variables in data.frame
63640
Logistic regression with categorical predictors
7838
Coding categorical variables for regression
66601
Convert continuous numeric values to discrete categories defined by intervals
20319
How to examine the relationship between categorical variables with several levels?
32585
How to use a dataset with only one category of data
123566
Recoding a variable with three levels into a dummy variable
112590
How to deal with multicollinearity when performing variable selection?
75532
Beta coefficient interpretion with categorical and continuous predictors in a linear regression
45578
How to use both binary and continuous variables together in clustering?
122557
Can covariates be categorial variables?
49410
How to handle ordinal categorical variable as independent variable
2060
How do I create group data in a category with more than and less than in R?
20019
Sample size for categorical data
78658
How to statistically prove if a column has categorical data or not using Python
953
Regression: Transforming Variables