R Programming: Create a List of DataFrames and access each DataFrame

Last update on December 21 2024 10:08:32 (UTC/GMT +8 hours)

Write a R program to create a list of dataframes and access each of those data frames from the list.

Sample Solution :

R Programming Code :

 # Create the first dataframe with columns y1 and y2
df1 = data.frame(y1 = c(0, 1, 2), y2 = c(3, 4, 5))

# Create the second dataframe with columns y1 and y2
df2 = data.frame(y1 = c(6, 7, 8), y2 = c(9, 10, 11))

# Combine the two dataframes into a list
new_list = list(df1, df2)

# Print a message indicating the new list
print("New list:")

# Print the new list containing the dataframes
print(new_list)

# Print a message indicating the first dataframe
print("Data frame-1")

# Print the first dataframe from the list
print(new_list[[1]])

# Print a message indicating the second dataframe
print("Data frame-2")

# Print the second dataframe from the list
print(new_list[[2]])

Output:

[1] "New list:"
[[1]]
  y1 y2
1  0  3
2  1  4
3  2  5

[[2]]
  y1 y2
1  6  9
2  7 10
3  8 11

[1] "Data frame-1"
  y1 y2
1  0  3
2  1  4
3  2  5
[1] "Data frame-2"
  y1 y2
1  6  9
2  7 10
3  8 11                         

Explanation:

• Create DataFrames:
• df1 is a dataframe with two columns: y1 and y2. The values in y1 are 0, 1, and 2, and the values in y2 are 3, 4, and 5.
• df2 is another dataframe with the same columns: y1 and y2. The values in y1 are 6, 7, and 8, and the values in y2 are 9, 10, and 11.
• Combine DataFrames into a List:
• new_list is a list that contains df1 and df2 as its elements.
• Print Statements:
• Print "New list:" to indicate the following output will display the list of dataframes.
• Print new_list to show the entire list containing both dataframes.
• Print "Data frame-1" to label the output of the first dataframe in the list.
• Print new_list[[1]] to show the first dataframe (df1).
• Print "Data frame-2" to label the output of the second dataframe in the list.
• Print new_list[[2]] to show the second dataframe (df2).

R Programming Code Editor:

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