How to Sort Values Alphabetically in R?

In this article, we will discuss how to sort values alphabetically in R Programming Language.

Sorting vector Alphabetically

Here we are using sort() function to sort a vector alphabetically.

Syntax:

sort(vector)

where, vector is the input vector

Example:

R

# create a vector
vector1 = c('G', 'E', 'E', 'K', 'S')

# sort the vector
print(sort(vector1))

Output:

[1] "E" "E" "G" "K" "S"

Sorting Data Frame Column Alphabetically

We can create a dataframe by using date.frame() function. We can sort a dataframe column by using order() function

Syntax:

dataframe[order(dataframe$column_name),]

where,

• dataframe is the input dataframe
• column_name is the column that includes alphabetical values based on this column

Example:

R

# create a dataframe with 3 columns
data = data.frame(name1=c('G', 'E', 'E', 'K', 'S'),
                  name2=c('P', 'Y', 'T', 'H', 'O'),
                  marks=c(78, 89, 77, 89, 78))

# sort the dataframe based on name1 column
print(data[order(data$name1), ])

# sort the dataframe based on name2 column
print(data[order(data$name2), ])

Output:

Method 3: Sort Multiple Columns Alphabetically

We can also sort multiple columns in dataframe by using order function.

Syntax:

dataframe[with(dataframe, order(column1, column2,.,column n)), ]

Example:

R

# create a dataframe with 3 columns
data = data.frame(name1=c('G', 'E', 'E', 'K', 'S'),
                  name2=c('P', 'Y', 'T', 'H', 'O'),
                  marks=c(78, 89, 77, 89, 78))

# sort the dataframe based on name1 and
# name2 columns
print(data[with(data, order(name1, name2)), ])

Output: