R Programming: Save the information of a data frame in a file and display the information of the file
R Programming: Data frame Exercise-22 with Solution
Write a R program to save the information of a data frame in a file and display the information of the file.
Sample Solution:
R Programming Code:
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)
save(exam_data,file="data.rda")
load("data.rda")
file.info("data.rda")
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 size isdir mode mtime ctime data.rda 344 FALSE 644 2018-10-25 12:06:09 2018-10-25 12:06:09 atime uid gid uname grname data.rda 2018-10-25 12:06:09 1000 1000 trinket trinket
R Programming Code Editor:
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Previous: Write a R program to find elements come only once that are common to both given data frames.
Next: Write a R program to count the number of NA values in a data frame column.
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