CODEWITHSUNDEEP
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Ultiseeker
Ultiseeker

Reputation: 181

Create a looped variable in R

I'm new to R and I'm trying to create a loop in R with a string mod and a variable x

my code so far looks like this m=1 and b=1 at the start of the code

  for (i in 1:5){
  mod = 'mod'
  mod + as.character(m) = b
  m = as.numeric(m)
  m = m+1
  b = (b + 1) * 2
}

what I want as an output is:

mod1 = 1
mod2 = 4
mod3 = 10

Is this possible or am I overthinking this problem?

Upvotes: 0

Views: 37

Answers (2)

Terru_theTerror
Terru_theTerror

Reputation: 5017

You can assign values to a variable with incrementing id using assign(paste("mod",m,sep=""), b)

Your loop could be something like this:

for (i in 1:5){
  assign(paste("mod",m,sep=""), b)
  m = m+1
  b = (b + 1) * 2
}

You can find these variables in memory, as the loop is closed:

> mod1
[1] 1
> mod2
[1] 4
> mod3
[1] 10
> mod4
[1] 22
> mod5
[1] 46
> mod6
[1] 94

Upvotes: 1

user2974951
user2974951

Reputation: 10375

Save the results in a list, use list2env

m=1
b=1

res=list()

for (i in 1:5){
  mod = 'mod'
  res[[paste0(mod,as.character(m))]] = b
  m = as.numeric(m)
  m = m+1
  b = (b + 1) * 2
}

list2env(res,envir = .GlobalEnv)

Upvotes: 0

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