Write a R program to get the structure of a given data frame.
exam_data = data.frame( name = c('Anastasia', 'Dima', 'Katherine', 'James', 'Emily', 'Michael', 'Matthew', 'Laura', 'Kevin', 'Jonas'), score = c(12.5, 9, 16.5, 12, 9, 20, 14.5, 13.5, 8, 19), attempts = c(1, 3, 2, 3, 2, 3, 1, 1, 2, 1), qualify = c('yes', 'no', 'yes', 'no', 'no', 'yes', 'yes', 'no', 'no', 'yes') ) print("Original dataframe:") print(exam_data) print("Structure of the said data frame:") print(str(exam_data))
Sample Output:
[1] "Original dataframe:" name score attempts qualify 1 Anastasia 12.5 1 yes 2 Dima 9.0 3 no 3 Katherine 16.5 2 yes 4 James 12.0 3 no 5 Emily 9.0 2 no 6 Michael 20.0 3 yes 7 Matthew 14.5 1 yes 8 Laura 13.5 1 no 9 Kevin 8.0 2 no 10 Jonas 19.0 1 yes [1] "Structure of the said data frame:" 'data.frame': 10 obs. of 4 variables: $ name : Factor w/ 10 levels "Anastasia","Dima",..: 1 2 6 4 3 10 9 8 7 5 $ score : num 12.5 9 16.5 12 9 20 14.5 13.5 8 19 $ attempts: num 1 3 2 3 2 3 1 1 2 1 $ qualify : Factor w/ 2 levels "no","yes": 2 1 2 1 1 2 2 1 1 2 NULL
total answers (1)
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Sample Output:
[1] "Original dataframe:" name score attempts qualify 1 Anastasia 12.5 1 yes 2 Dima 9.0 3 no 3 Katherine 16.5 2 yes 4 James 12.0 3 no 5 Emily 9.0 2 no 6 Michael 20.0 3 yes 7 Matthew 14.5 1 yes 8 Laura 13.5 1 no 9 Kevin 8.0 2 no 10 Jonas 19.0 1 yes [1] "Structure of the said data frame:" 'data.frame': 10 obs. of 4 variables: $ name : Factor w/ 10 levels "Anastasia","Dima",..: 1 2 6 4 3 10 9 8 7 5 $ score : num 12.5 9 16.5 12 9 20 14.5 13.5 8 19 $ attempts: num 1 3 2 3 2 3 1 1 2 1 $ qualify : Factor w/ 2 levels "no","yes": 2 1 2 1 1 2 2 1 1 2 NULLneed an explanation for this answer? contact us directly to get an explanation for this answer