# How to Convert Numeric to Character in R (With Examples)

We can use the following syntax to convert a numeric vector to a character vector in R:

```character_vector <- as.character(numeric_vector)
```

This tutorial provides several examples of how to use this function in practice.

### Example 1: Convert a Vector from Numeric to Character

The following code shows how to convert a numeric vector to a character vector:

```#create numeric vector
chars <- c(12, 14, 19, 22, 26)

#convert numeric vector to character vector
chars <- as.character(chars)

#view character vector
chars

[1] "12" "14" "19" "22" "26"

#confirm class of character vector
class(chars)

[1] "character"
```

### Example 2: Convert a Column from Numeric to Character

The following code shows how to convert a specific column in a data frame from numeric to character:

```#create data frame
df <- data.frame(a = c('12', '14', '19', '22', '26'),
b = c(28, 34, 35, 36, 40))

#convert column 'b' from numeric to character
df\$b <- as.character(df\$b)

#confirm class of character vector
class(df\$b)

[1] "character"
```

### Example 3: Convert Several Columns from Numeric to Character

The following code shows how to convert all numeric columns in a data frame from numeric to character:

```#create data frame
df <- data.frame(a = c('12', '14', '19', '22', '26'),
b = c('28', '34', '35', '36', '40'),
c = as.factor(c(1, 2, 3, 4, 5)),
d = c(45, 56, 54, 57, 59))

#display classes of each column
sapply(df, class)

a           b           c           d
"numeric" "character"    "factor"   "numeric"

#identify all numeric columns
nums<- sapply(df, is.numeric)

#convert all numeric columns to character
df[ , nums] <- as.data.frame(apply(df[ , nums], 2, as.character))

#display classes of each column
sapply(df, class)

a           b           c           d
"character" "character"    "factor" "character" ```

This code made the following changes to the data frame columns:

• Column a: From numeric to character
• Column b: Unchanged (since it was already numeric)
• Column c: Unchanged (since it was a factor)
• Column d: From numeric to character

By using the apply() and sapply() functions, we were able to convert only the numeric columns to character columns and leave all other columns unchanged.