[amp_mcq option1=”Sorting data” option2=”Filtering data” option3=”Reshaping data” option4=”Grouping and aggregating data” correct=”option4″]<\/p>\n
The correct answer is D. Grouping and aggregating data.<\/p>\n
The For example, if you have a DataFrame with a column of “` df.groupby(‘country’).mean()<\/p>\n country population The “` country population gdp The The other options are incorrect because they do not describe the primary purpose of the [amp_mcq option1=”Sorting data” option2=”Filtering data” option3=”Reshaping data” option4=”Grouping and aggregating data” correct=”option4″]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[737],"tags":[],"class_list":["post-53686","post","type-post","status-publish","format-standard","hentry","category-data-analysis-with-python","no-featured-image-padding"],"yoast_head":"\ngroupby<\/code> method in Pandas is used to group data by a particular column or columns. This can be useful for performing operations on each group of data, such as calculating the mean or sum of the values in a column.<\/p>\ncountry<\/code> and a column of population<\/code>, you could use the groupby<\/code> method to group the data by country and then calculate the mean population for each country.<\/p>\n
\ndf = pd.DataFrame({‘country’: [‘USA’, ‘Canada’, ‘Mexico’], ‘population’: [330, 38, 128]})<\/p>\n
\n0 USA 330.0
\n1 Canada 38.0
\n2 Mexico 128.0
\n“`<\/p>\ngroupby<\/code> method can also be used to perform more complex operations on grouped data. For example, you could use it to calculate the correlation between the population and the GDP of each country.<\/p>\n
\ndf.groupby(‘country’).corr()[‘population’, ‘gdp’]<\/p>\n
\n0 USA 0.9364706 0.9777878
\n1 Canada 0.8947368 0.9555556
\n2 Mexico 0.8636364 0.9318182
\n“`<\/p>\ngroupby<\/code> method is a powerful tool that can be used to perform a variety of operations on grouped data. It is an essential tool for any data scientist or analyst who works with Pandas.<\/p>\ngroupby<\/code> method.<\/p>\n\n
groupby<\/code> method does not sort data. The sort_values<\/code> method is used to sort data.<\/li>\ngroupby<\/code> method does not filter data. The filter<\/code> method is used to filter data.<\/li>\ngroupby<\/code> method does not reshape data. The reshape<\/code> method is used to reshape data.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"