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question 2 a data analyst wants a quick summary of the structure of their data frame, including the column names and the number of rows and variables. what function should they use?

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The str() function returns a summary of a data frame's structure, including column names, row and variable counts, and the type of data stored.

What is data frame ?

  • Data is presented as a table in a data frame. Data frames can contain a variety of data kinds.
  • The second and third columns can be either numeric or logical, while the first column can be character-based. The same kind of data should be in each column, though.
  • You can optionally give options for the index and columns along with the data. You are ensuring the index and/or columns of the generated Data Frame if you pass an index and/or columns.
  • As a result, all data that does not match the passed index will be discarded from a dict of Series plus the given index.
  • Similar to relational database tables or Python Pandas Data Frames, Data Frames are a Spark SQL data abstraction. A Dataset is an addition to the Data Frame API and is also a Spark SQL structure.

To learn more about data frame, refer to:

brainly.com/question/28448874

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