Google Colab Quiz: Importing Pandas & Numpy, Reading CSV Files, DataFrame Operations
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Questions and Answers

How can you change the index of the DataFrame to a numpy array?

  • By using the to_numpy() function on the DataFrame index
  • By using the index_to_array() method on the DataFrame
  • By converting the DataFrame index to a list and then to a numpy array (correct)
  • By using the reset_index() function on the DataFrame

    • How can you select multiple rows from the DataFrame using the iloc function?

  • By specifying a range of row indices separated by a colon in the iloc function
  • By passing a list of row indices to the iloc function (correct)
  • By using boolean indexing with iloc on the DataFrame
  • By applying a lambda function to filter rows in the iloc function

    • How can you set a specific column as the index of the DataFrame?

  • By dropping all other columns except the selected column
  • By using reset_index() function and then setting a new index
  • By using set_index() function with the column name as an argument (correct)
  • By directly changing the values of the column to be the index

    • How can you drop multiple columns from the DataFrame?

    <p>By using drop() function with a list of column names as arguments</p> Signup and view all the answers

    How can you merge two DataFrames based on a common column with different names?

    <p>By renaming one of the columns to match the other before merging</p> Signup and view all the answers

    How can you select specific rows and columns from the DataFrame using the loc function?

    <p>By passing row labels and column labels as arguments to loc function</p> Signup and view all the answers

    What is the purpose of the info() function in Pandas?

    <p>Displays a concise summary of the DataFrame including the data types and non-null values</p> Signup and view all the answers

    How can you rename a column in a Pandas DataFrame?

    <p>By selecting the column and assigning a new name to it</p> Signup and view all the answers

    What does the shape attribute of a Pandas DataFrame represent?

    <p>Number of rows and columns in the DataFrame</p> Signup and view all the answers

    How can you get the unique values of a specific column in a Pandas DataFrame?

    <p><code>unique()</code> method</p> Signup and view all the answers

    What is the purpose of creating a new column in a Pandas DataFrame with values from a list comprehension?

    <p>To apply custom logic to generate column values</p> Signup and view all the answers

    How can you select specific columns from a Pandas DataFrame?

    <p><code>loc[]</code> or <code>.iloc[]</code> indexing</p> Signup and view all the answers

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