4

I have a vector of "sizes" or "widths", like this one:

x <- c(1, 4, 6, 10)

and I would like to create another vector based on x, a vector like this one:

y <- c(" ", " ", " ", " ")

Basically there are two imputs for creating y: the blank space " " and the vector x.

So as you can see, the vector x defines the length of the blank spaces in y. I know I can do this creating a function from scratch, but I'm guessing if there's some kind of function or combination with rep, paste0 or other built in functions in R.

Any idea? thanks.

Improve this question
1

4 Answers 4

Reset to default
6

Use strrep:

strrep(" ", c(1, 4, 6, 10)) #> [1] " " " " " " " "

In stringr, you can also use str_dup:

stringr::str_dup(" ", c(1, 4, 6, 10)) #> [1] " " " " " " " "
Improve this answer
Sign up to request clarification or add additional context in comments.

1 Comment

very nice solution, I didn't know this function, thanks!
2

A possible solution:

x <- c(1, 4, 6, 10) sapply(x, \(y) paste0(rep(" ", y), collapse = "")) #> [1] " " " " " " " "
Improve this answer

Comments

1

Here is a solution.

x <- c(1, 4, 6, 10) y <- sapply(x, \(n) formatC(" ", width = n)) y #> [1] " " " " " " " "

Created on 2022-08-09 by the reprex package (v2.0.1)

Improve this answer

Comments

1 
library(stringr) x <- c(1, 4, 6, 10) y <- str_pad(" ", width = x) y #> [1] " " " " " " " "

Created on 2022-08-09 by the reprex package (v2.0.1)

Improve this answer

Comments

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.