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学ぶ Replace Categorical Missing Data with Values | Data Cleaning
Preprocessing Data
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bookReplace Categorical Missing Data with Values

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To deal with categorical data:

  • replace with some constant or the most popular value
  • create a new category for these values. -process the data after converting it to the numerical. We'll use this approach later.

Let's explore for each column Cabin and Embarked(these columns contain NaNs) and figure out how to proceed with the NaNs.

タスク

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  1. Explore the share of NaNs for each of the given columns. Print these values.
  2. For Embarked column, simply drop the missing values, since there are only 2 rows containing it.
  3. For the Cabin, about 77% of data is missing (if everything is done correct). That's why we'll replace NaNs with some new value. To do that:
  • print all the unique values for the Cabin column.
  • choose any other vlaue except already presented in the Cabin column and replace all NaNs with it. (For example, it can be 'Z' or 'X').

Check some data samples to see the modified dataframe.

解答

Switch to desktop実践的な練習のためにデスクトップに切り替える下記のオプションのいずれかを利用して、現在の場所から続行する
すべて明確でしたか?

どのように改善できますか?

フィードバックありがとうございます!

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