# Categorical Feature Encoding Challenge II — Data

来源：https://www.kaggle.com/competitions/cat-in-the-dat-ii/data

采集时间：2026-10-19T11:13:33Z

In this competition, you will be predicting the probability `[0, 1]` of a binary `target` column.

The data contains binary features (`bin_*`), nominal features (`nom_*`), ordinal features (`ord_*`) as well as (potentially cyclical) `day` (of the week) and `month` features. The string ordinal features `ord_{3-5}` are lexically ordered according to `string.ascii_letters`.

Since the purpose of this competition is to explore various encoding strategies. Unlike the first [Categorical Feature Encoding Challenge](https://www.kaggle.com/c/cat-in-the-dat/data), the data for this challenge has missing values and feature interactions.
 
## Files

*   **train.csv** - the training set
*   **test.csv** - the test set; you must make predictions against this data
*   **sample_submission.csv** - a sample submission file in the correct format