How to remove dollar sign in R data frame?

To remove dollar sign in R data frame, we can follow the below steps −

• First of all, create a data frame.

• Then, use gsub function along with lapply function to remove dollar sign.

Example

Create the data frame

Let’s create a data frame as shown below −

Product<-sample(c("Milk","Sugar","Bread","Wheat"),25,replace=TRUE)
Price<-
sample(c("$10","$5","$12","$15","$9","$8","$11","$14","$13"),25,replace=TRUE)
df<-data.frame(Product,Price)
df

Output

On executing, the above script generates the below output(this output will vary on your system due to randomization) −

   Product Price
1  Milk    $11
2  Sugar   $5
3  Milk    $5
4  Bread   $10
5  Sugar   $8
6  Sugar   $11
7  Sugar   $5
8  Wheat   $15
9  Sugar   $5
10 Wheat   $15
11 Wheat   $5
12 Milk    $8
13 Milk    $13
14 Wheat   $13
15 Wheat   $5
16 Milk    $13
17 Wheat   $12
18 Bread   $5
19 Bread   $10
20 Milk    $9
21 Milk    $14
22 Bread   $11
23 Milk    $8
24 Sugar   $10
25 Bread   $8

Remove dollar sign

Using gsub function along with lapply function to remove dollar sign from Price column as shown below −

Product<-sample(c("Milk","Sugar","Bread","Wheat"),25,replace=TRUE)
Price<-
sample(c("$10","$5","$12","$15","$9","$8","$11","$14","$13"),25,replace=TRUE)
df<-data.frame(Product,Price)
df[]<-lapply(df,gsub,pattern="$",fixed=TRUE,replacement="")
df

Output

   Product Price
1  Sugar    15
2  Sugar    14
3  Wheat     8
4  Sugar    10
5  Milk     11
6  Milk      5
7  Sugar    11
8  Sugar    14
9  Milk     12
10 Wheat    10
11 Wheat    15
12 Bread    11
13 Bread    13
14 Milk      5
15 Bread    13
16 Wheat    11
17 Wheat    13
18 Sugar    10
19 Sugar    12
20 Milk      9
21 Milk     13
22 Wheat    15
23 Sugar     9
24 Bread    14
25 Milk      5

Nizamuddin Siddiqui

Updated on: 08-Nov-2021

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