Analyzing Data Using Python: Filtering Data in Pandas
Python
| Intermediate
- 10 videos | 1h 26m 11s
- Includes Assessment
- Earns a Badge
Not all data is useful. Luckily, there are some powerful filtering operations available in pandas. The course begins with a detailed look at how loc and iloc can be used to access specific data from a DataFrame. You'll move on to filter data using the classic pandas lookup syntax and the pandas filter and query methods. You'll illustrate how the filter function accepts wildcards as well as regular expressions and use various methods such as the .isin method to filter data. Furthermore, you'll filter data using either two pairs of square brackets - in which case the resulting subset is itself a DataFrame - or a single pair of square brackets, in which case the returned data takes the form of a Series. You'll drop rows and columns from a pandas DataFrame and see how rows can be filtered out of a DataFrame. Lastly, you'll identify a possible gotcha that arises when you drop rows in-place but neglect to reset the index labels in your object.
WHAT YOU WILL LEARN
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Discover the key concepts covered in this courseLook up data using different techniquesApply the loc and iloc functions to access specific rows and columnsFilter data using the loc, iloc, at, and iat functionsFilter data using the loc, iloc, at, and iat functions
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Perform conditional filtering using the query functionParse and manipulate datetime valuesSelect and drop specific columnsApply regular expressions and other advanced techniques to select and drop columnsSummarize the key concepts covered in this course
IN THIS COURSE
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2m 10s
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11m 38s
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10m 6s
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11m 54s
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11m 2sIn this video, you'll learn how to filter data using the loc, iloc, at, and iat functions. You'll start by invoking the sample method on your DataFrame and specifying an input argument of 10. A Jupyter notebook is open on the screen. FREE ACCESS
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9m 15sIn this demo, you'll learn how to filter and query data using the query function. You'll learn how to use the filter condition to look up the country column and check for equality with a specific string, which is the United States. You'll then be shown how to build a simple query that returns all rows where the customer is in the United States. FREE ACCESS
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5m 50s
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11m 3s
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10m 59s
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2m 16s
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