Optimized Data Filtering
Explore different data filtering methods in Pandas, including the [], query(), and eval() functions. Understand their performance differences, especially with large datasets, and learn how to apply these techniques to speed up data selection while maintaining clear syntax.
We'll cover the following...
We'll cover the following...
pandas provides extensive methods for data selection. You can find the corresponding lesson in Select data from DataFrame. Below are some alternative methods you could choose,
- Pass condition expression to
[]operation. - Use the
query()function. - Use the
eval()function.
Performance comparison
When the data size is small, it doesn’t matter which one you choose, but the [] operation may be faster. ...