# How to Sort a Data Frame by Column in R (With Examples)

The easiest way to sort a data frame by a column in R is to use the order() function:

```#sort ascending
df[order(df\$var1), ]

#sort descending
df[order(-df\$var1), ]
```

This tutorial provides several examples of how to use this function in practice with the following data frame:

```#create data frame
df <- data.frame(var1=c(1, 3, 3, 4, 5),
var2=c(7, 7, 8, 3, 2),
var3=letters[1:5])

#view data frame
df

var1 var2 var3
1    1    7    a
2    3    7    b
3    3    8    c
4    4    3    d
5    5    2    e
```

### Example 1: Sort by One Column

The following code shows how to sort the data frame by the var1 column, both in an ascending and descending manner:

```#sort by var1 ascending
df[order(df\$var1), ]

var1 var2 var3
1    1    7    a
2    3    7    b
3    3    8    c
4    4    3    d
5    5    2    e

#sort by var1 descending
df[order(-df\$var1), ]

var1 var2 var3
5    5    2    e
4    4    3    d
2    3    7    b
3    3    8    c
1    1    7    a```

Note that we can also sort by a character vector alphabetically:

```#sort by var3 ascending
df[order(df\$var3), ]

var1 var2 var3
1    1    7    a
2    3    7    b
3    3    8    c
4    4    3    d
5    5    2    e
```

### Example 2: Sort by Multiple Columns

The following code shows how to sort the data frame by multiple columns:

```#sort by var2 ascending, then var1 ascending
df[order(df\$var2, df\$var1), ]

var1 var2 var3
5    5    2    e
4    4    3    d
1    1    7    a
2    3    7    b
3    3    8    c

#sort by var2 ascending, then var1 descending
df[order(df\$var2, -df\$var1), ]

var1 var2 var3
5    5    2    e
4    4    3    d
2    3    7    b
1    1    7    a
3    3    8    c```