Question

(adf, bdf, how='left', on='col1')
1) adf
2) bdf
3) how='left'
4) on='col1'

Answer 1

The code snippet provided performs a left join operation on two data frames in Python using a specific column as the key.

Step-by-step explanation:

The code snippet provided seems to be written in a programming language, indicating that it falls under the subject of Computers and Technology. Specifically, it appears to be written in Python, a popular programming language used in various fields including data analysis and machine learning.

The given code uses the panda's library to perform a left join operation on two data frames, named 'adf' and 'bdf', using the 'col1' column as the key. The 'how' parameter defines the type of join, whereas 'left' specifies that all the rows from the 'adf' data frame should be included in the result, along with the matched rows from the 'bad' data frame.

In summary, the code snippet is performing a left join operation on the 'adf' and 'bdf' data frames in Python using a specific column as the key.

Code snippets are small blocks of reusable code that you can add to a code file by using the right-click context menu command or a combination of hotkeys. Code snippets typically contain often-used code blocks such as try-finally or if-else blocks, but you can also use them to add entire classes or methods.