Missing Values Python

gistfile1.txt

train_male = train_dataset[train_dataset['Sex'] == 'male']['Age'].median()
train_female = train_dataset[train_dataset['Sex'] == 'female']['Age'].median()
train_dataset.loc[train_dataset['Sex'] == 'male', ['Age']] = train_male;
train_dataset.loc[train_dataset['Sex'] == 'female', ['Age']] = train_female;

# Keep test dataset in sync
test_male = train_dataset[train_dataset['Sex'] == 'male']['Age'].median()
test_female = train_dataset[train_dataset['Sex'] == 'female']['Age'].median()

test_dataset.loc[test_dataset['Sex'] == 'male', ['Age']] = test_male;
test_dataset.loc[test_dataset['Sex'] == 'female', ['Age']] = test_female;