New 1 - Data Science

1. QQ-plot(Quantile Quantile plot)

                              (완전한 정규분포를 이룰 때)

                              (skewed가 있을 떄)

2. Pandas.DataFrame.apply()

3. Pandas.DataFrame.transform()

4.apply()とtransform()の違い

1. transform() work with function, a string function, a list of functions, and a dict. However, apply() is only allowed with function.

2. transform() cannot produce aggregated results.

3. apply() works with multiple Series at a time. But, transform() is only allowed to work with a single Series at a time.

5. Pandas.DataFrame.astype()

6. Sklearn.pipeline()

7. cross_val_score()

8. Key differences GBM vs XGBOOST

9. BaseEstimator, RegressorMixin, TransformerMixin

1. BaseEstimator

2. TransformerMixin

3. RegressorMixin