CODEWITHSUNDEEP
rfor-loop
Magnus
Magnus

Reputation: 760

Can I generate repetitive code segements with a for-loop?

I need to do something like the following:

Start of code
 Repetitive code line 1
 Repetitive code line 2
 Repetitive code line 3
 ......
 Repetitive code line n
End of code

So far I've tried putting a for-loop into a print statement:

strings2<-c("a","b","c","d","e","f","g")
print(paste("start of code",for(i in strings2){print(paste0("repetitive code line",i))},"end of code"))

However, the "Start of code" and "end of code"-lines turns up at the wrong place:

[1] "repetitive code linea"
[1] "repetitive code lineb"
[1] "repetitive code linec"
[1] "repetitive code lined"
[1] "repetitive code linee"
[1] "repetitive code linef"
[1] "repetitive code lineg"
[1] "start of code  end of code"

Can this be done with a for-loop, or is there a better way?

Upvotes: 0

Views: 58

Answers (1)

Francesco Grossetti
Francesco Grossetti

Reputation: 1595

This does what you are asking but I am not sure it is exactly what you want. For instance, I explicitly coded the starting and ending of the loop. Have a look.

starting <- "start of code"
strings2 <- c("a","b","c","d","e","f","g")
ending <- "end of code"

for (i in seq_along(strings2) ) {
  if (i == 1L) {
    print(starting)
  }
  print(strings2[i])
  if (i == length(strings2)) {
    print(ending)
  }
}
#> [1] "start of code"
#> [1] "a"
#> [1] "b"
#> [1] "c"
#> [1] "d"
#> [1] "e"
#> [1] "f"
#> [1] "g"
#> [1] "end of code"

Created on 2022-10-03 with reprex v2.0.2

Upvotes: 1

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