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How to Check Column Nulls and Replace: Pandas

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Here is a post that shows how to count Nulls and replace them with the value you want in the Pandas Dataframe. We have explained the process in two steps - Counting and Replacing the Null values. Count null values (column-wise) in Pandas ## count null values column-wise null_counts = df.isnull(). sum() print(null_counts) ``` Output: ``` Column1    1 Column2    1 Column3    5 dtype: int64 ``` In the above code, we first create a sample Pandas DataFrame `df` with some null values. Then, we use the `isnull()` function to create a DataFrame of the same shape as `df`, where each element is a boolean value indicating whether that element is null or not. Finally, we use the `sum()` function to count the number of null values in each column of the resulting DataFrame. The output shows the count of null values column-wise. to count null values column-wise: ``` df.isnull().sum() ``` ##Code snippet to count null values row-wise: ``` df.isnull().sum(axis=1) ``` In the above code, `df` is the Panda

12 Must Read DevOps Principles That Give Fair Idea on The Concept

Here're twelve essential DevOps Principles. Below is the useful list for your sure success in your next interview.


12 Essential Principles



12 DevOps principles


  1. To deliver rapidly without affecting the quality.
  2. Improved Communication and Collaboration.
  3. Multiple deploys are possible if the code in the development team is automated.
  4. Once you commit to the repository, it tests the code automatically using the automated test scripts.
  5. If the Build passed, it installs automatically.
  6. Installs automatically to n number of servers.
  7. Minor changes take place in isolation - it creates a separate server to deploy minor changes.
  8. Speed in DevOps helps organizations to serve their clients faster and more effectively.
  9. Quality and Security teams.
  10. Automating the process improves productivity over the manual method.
  11. Deploy frequently - the changes can be small or big.
  12. DevOps has multiple benefits over traditional approach.

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