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:

Have another way to solve this solution? Contribute your code (and comments) through Disqus.

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.