Branch-AI/one_exercise_per_file/week02/day03/ex01/readme.md

Exercise 1 Imputer 1

The goal of this exercise is to learn how to use an Imputer to fill missing values on basic example.

train_data = [[7, 6, 5], 
              [4, np.nan, 5], 
              [1, 20, 8]]

1. Fit the SimpleImputer on the data. Print the statistics_. Check that the statistics match np.nanmean(train_data, axis=0).

2. Fill the missing values in train_data using the fitted imputer and transform.

3. Fill the missing values in test_data using the fitted imputer and transform.

test_data = [[np.nan, 1, 2], 
             [7, np.nan, 9], 
             [np.nan, 2, 4]]