COMPUTER SCIENCE AND ENGINEERING
DATA STRUCTURES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following commands is used to convert array named “grades” into data frame named “df ____ grades”?
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df ____ grades = grades
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df ____ grades = pd.DataFrame(grades)
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df ____ grades = pd.DataFrame("grades")
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grades = pd.DataFrame(df ____ grades)
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Explanation:
Detailed explanation-1: -In order to sort the data frame in pandas, function sort values() is used. Pandas sort values() can sort the data frame in Ascending or Descending order.
Detailed explanation-2: -The dropna() method removes the rows that contains NULL values. The dropna() method returns a new DataFrame object unless the inplace parameter is set to True, in that case the dropna() method does the removing in the original DataFrame instead.
Detailed explanation-3: -The DataFrame is a pandas two-dimension data structure that is used to store the labeled data in a table format, a DataFrame has row index labels and column index labels which are used to represent the element (a value) address.
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