R variable inside a string

Question

I would like to know if it is possible to pass a variable inside a string with R like in php. For example:

args <- commandArgs(TRUE)
variable1 <- args[1]

variable2 <- "I am argument:",variable1,"text continue"

I tried with sprintf but with no success. I mean I didn't get what I wanted. variable2 <- sprintf("I am a string %s %s",variable1,"text continue") — user979974
– user979974, Commented Feb 17, 2020 at 9:58

user2974951 · Accepted Answer · 2020-02-17 09:40:33Z

7

variable2 <- paste0("I am argument:",variable1,"text continue")

answered Feb 17, 2020 at 9:40

user2974951

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Comments

Ronak Shah · Accepted Answer · 2020-02-17 10:11:17Z

1

There are variety of ways to get the output :

variable1 <- args[1]

1) Using sprintf as mentioned by @Roland

sprintf("I am argument: %s text continue",variable1)

2) Using glue

glue::glue("I am argument: {variable1} text continue")

3) a) str_c

stringr::str_c("I am argument:",variable1,"text continue")

b) stri_c

stringi::stri_c("I am argument:",variable1,"text continue")

answered Feb 17, 2020 at 10:11

Ronak Shah

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