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The dot product of a matrix is a basic linear algebra calculation used in machine learning to make computations more efficiently as data increases. Here’s how to calculate it.
Filtering data in Pandas is a critical step for effective data analysis. From logical operators to str accessor to loc and iloc, these are the most common methods to know.
Adding a new column to a Pandas DataFrame can be done using direct assignment, df.insert(), df.loc[], df.assign() or a Python dictionary. Here's how to use each method.