Syntax error How to add zeros before numbers in R?

How to add zeros before numbers in R?

The easiest way to add zeros before numbers is by using paste0 function

Example

> ID <- c(25499,25500,25501,25502,25503,25504)
> Gender <- c(1,2,2,1,2,1)
> Lens <- c(0.8,1.2,1.0,2.0,1.8,1.4)
> data <- data.frame(ID,Gender,Lens)
> data
  ID Gender Lens
1 25499 1 0.8
2 25500 2 1.2
3 25501 2 1.0
4 25502 1 2.0
5 25503 2 1.8
6 25504 1 1.4

Let’s say we want to add 00 before every ID.

It can be done by using paste0 function as follows −

> IDs<-paste0("00",data$ID)
> newdata <- data.frame(IDs,Gender,Lens)
> newdata
IDs Gender Lens
1 0025499 1 0.8
2 0025500 2 1.2
3 0025501 2 1.0
4 0025502 1 2.0
5 0025503 2 1.8
6 0025504 1 1.4
Updated on: 2020-07-06T14:09:36+05:30

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