R sort() Function - Sort a Vector
R Language ExamplesThe R sort() function is used to sort elements in a vector.
sort() can directly return the sorted vector, supporting ascending order, descending order, and partial sorting.
The syntax of the sort() function is as follows:
sort(x, decreasing = FALSE, na.last = NA)
Parameter description:
xInput vector.
decreasingWhether to sort in descending order; default is FALSE (ascending).
na.lastHow to handle NA values: TRUE places them at the end, FALSE places them at the beginning, and "NA" removes them.
Example
# Numeric sorting
x <- c(12, 27, 3, 4.2, 2, 54, -21, 4, -2)
print("Ascending order:")
print(sort(x))
print("Descending order:")
print(sort(x, decreasing = TRUE))
# Character sorting
fruits <- c("banana", "apple", "cherry", "blueberry")
print("Sort alphabetically:")
print(sort(fruits))
x <- c(12, 27, 3, 4.2, 2, 54, -21, 4, -2)
print("Ascending order:")
print(sort(x))
print("Descending order:")
print(sort(x, decreasing = TRUE))
# Character sorting
fruits <- c("banana", "apple", "cherry", "blueberry")
print("Sort alphabetically:")
print(sort(fruits))
Executing the above code produces the following output:
[1] "升序排列:" [1] -21.0 -2.0 2.0 3.0 4.0 4.2 12.0 27.0 54.0 [1] "降序排列:" [1] 54.0 27.0 12.0 4.2 4.0 3.0 2.0 -2.0 -21.0 [1] "按字母排序:" [1] "apple" "banana" "blueberry" "cherry"
sort() can also obtain the top n maximum or minimum values:
Example
scores <- c(85, 92, 78, 95, 88, 72, 90, 68, 82, 89)
# The 3 smallest scores
print("Lowest 3:")
print(sort(scores)[1:3])
# The 3 largest scores
sorted_desc <- sort(scores, decreasing = TRUE)
print("Highest 3:")
print(sorted_desc[1:3])
# The 3 smallest scores
print("Lowest 3:")
print(sort(scores)[1:3])
# The 3 largest scores
sorted_desc <- sort(scores, decreasing = TRUE)
print("Highest 3:")
print(sorted_desc[1:3])
Executing the above code produces the following output:
[1] "最低 3 个:" [1] 68 72 78 [1] "最高 3 个:" [1] 95 92 90Other extensions