Example 1: Split Dataframe by Row Indexes in R
# Create a data frame
dataframe1 <- data.frame (
Name = c("Juan", "Alcaraz", "Simantha"),
Age = c(22, 15, 19),
Address = c("Nepal", "USA", "Germany")
)
# extract 1st row
print(dataframe1[1, ])
# extract 1st and 3rd row
print(dataframe1[c(1,3), ])
Output
Name Age Address 1 Juan 22 Nepal Name Age Address 1 Juan 22 Nepal 3 Simantha 19 Germany
Here,
dataframe1[1, ]
- splits entire elements of 1st rowdataframe1[c(1,3), ]
- splits entire elements of 1st and 3rd row
Example 2: Split Dataframe by Column Names in R
# Create a data frame
dataframe1 <- data.frame (
Name = c("Juan", "Alcaraz", "Simantha"),
Age = c(22, 15, 19),
Address = c("Nepal", "USA", "Germany")
)
# extract 1st column
print(dataframe1[, "Name"])
# extract 1st and 3rd column
print(dataframe1[, c("Name", "Address")])
Output
[1] "Juan" "Alcaraz" "Simantha" Name Address 1 Juan Nepal 2 Alcaraz USA 3 Simantha Germany
Here,
dataframe1[,"Name"]
- splits entire elements of 1st columndataframe1[, c("Name","Address")]
- splits entire elements of 1st and 3rd column
Note: Instead of column names we can also split data frame using column indexes as: [, 1]
and [, C(1,3)]
. The output will be the same.