# How to Use stringsAsFactors in R

stringsAsFactors decides the strings will be considered as factors or just strings or characters. The following uses two examples to explains the difference.

## Example 1: stringsAsFactors= FALSE

The following sets stringsAsFactors= FALSE. We can see that the data type of the column of `Names` is characters. (`chr` represents characters.)

``````# Create a dataframe in R, setting stringsAsFactors= FALSE
df <- data.frame(Names = c('Jack','Jess','Jacob'),
Ages = c(32,22,44),
stringsAsFactors = FALSE)

# print out the dataframe
print(df)

# check the datatype in the dataframe
str(df)    ``````

Output:

```  Names Ages
1  Jack   32
2  Jess   22
3 Jacob   44

'data.frame':	3 obs. of  2 variables:
\$ Names: chr  "Jack" "Jess" "Jacob"
\$ Ages : num  32 22 44```

## Example 2: stringsAsFactors= TRUE

The following sets stringsAsFactors= TRUE. We can see that the data type of the column of `Names` is Factor now.

``````
# Create a dataframe in R, setting stringsAsFactors= TRUE
df <- data.frame(Names = c('Jack','Jess','Jacob'),
Ages = c(32,22,44),
stringsAsFactors = TRUE)

# print out the dataframe
print(df)

# check the datatype in the dataframe
str(df)   ``````

Output:

```  Names Ages
1  Jack   32
2  Jess   22
3 Jacob   44

'data.frame':	3 obs. of  2 variables:
\$ Names: Factor w/ 3 levels "Jack","Jacob",..: 1 3 2
\$ Ages : num  32 22 44```