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I want to assign and store a new value for each iteration in a for loop

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0

I want to assign and store a new value into the R environment for each iteration of a for loop as said in the title.

csg<-clusters(suba)

csgs1<-subgraph(suba, csg$membership==1)

sg1<-cluster_spinglass(csgs, weights=E(a)$weight)

So, given some igraph object (suba), I want to create sg1, sg2,..., sg31. I don't want to go through the 2 lines of code above 31 times though so I've tried a for loop? But I don't know how to store a new value each time.

for (k in 1:seq_along(length(csg$csize)))

 csgs[k] <- subgraph(suba, csg$membership==k)

 sg [k] <-cluster_spinglass(csgs[k] , weights=E(a)$weight)

 

Obviously, the square brackets don't work in this situation but I couldn't find how to do this.

Ideally, I'd want to have sg1,sg2, etc saved into the R environment so that I could use these as the groups for my network suba. Because my code is straight up not working, I don't get results at the moment. It works individually though, creating a subgraph for csgs1 and a list for sg1.

r loops for-loop networking

share|improve this question

edited Mar 27 at 8:59

Curr195

1,32233 gold badges1616 silver badges3535 bronze badges

asked Mar 27 at 4:59

badatrbadatr

311 bronze badge

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  See my "store as list elements" answer here for one simple approach
  
  – Dan Y
  Mar 27 at 5:04
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Also, you should initialize a loop with for(k in 1:length(vec)) or even better with for(k in seq_along(vec)). Right now, your code does 1:seq_along(length(vec)) which is effectively 1:1 and -- I suspect -- not what is intended.
  
  – Dan Y
  Mar 27 at 5:48
  

  
  
  
  

add a comment | 

0

I want to assign and store a new value into the R environment for each iteration of a for loop as said in the title.

csg<-clusters(suba)

csgs1<-subgraph(suba, csg$membership==1)

sg1<-cluster_spinglass(csgs, weights=E(a)$weight)

So, given some igraph object (suba), I want to create sg1, sg2,..., sg31. I don't want to go through the 2 lines of code above 31 times though so I've tried a for loop? But I don't know how to store a new value each time.

for (k in 1:seq_along(length(csg$csize)))

 csgs[k] <- subgraph(suba, csg$membership==k)

 sg [k] <-cluster_spinglass(csgs[k] , weights=E(a)$weight)

 

Obviously, the square brackets don't work in this situation but I couldn't find how to do this.

Ideally, I'd want to have sg1,sg2, etc saved into the R environment so that I could use these as the groups for my network suba. Because my code is straight up not working, I don't get results at the moment. It works individually though, creating a subgraph for csgs1 and a list for sg1.

r loops for-loop networking

share|improve this question

edited Mar 27 at 8:59

Curr195

1,32233 gold badges1616 silver badges3535 bronze badges

asked Mar 27 at 4:59

badatrbadatr

311 bronze badge

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  See my "store as list elements" answer here for one simple approach
  
  – Dan Y
  Mar 27 at 5:04
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Also, you should initialize a loop with for(k in 1:length(vec)) or even better with for(k in seq_along(vec)). Right now, your code does 1:seq_along(length(vec)) which is effectively 1:1 and -- I suspect -- not what is intended.
  
  – Dan Y
  Mar 27 at 5:48
  

  
  
  
  

add a comment | 

I want to assign and store a new value into the R environment for each iteration of a for loop as said in the title.

csg<-clusters(suba)

csgs1<-subgraph(suba, csg$membership==1)

sg1<-cluster_spinglass(csgs, weights=E(a)$weight)

So, given some igraph object (suba), I want to create sg1, sg2,..., sg31. I don't want to go through the 2 lines of code above 31 times though so I've tried a for loop? But I don't know how to store a new value each time.

for (k in 1:seq_along(length(csg$csize)))

 csgs[k] <- subgraph(suba, csg$membership==k)

 sg [k] <-cluster_spinglass(csgs[k] , weights=E(a)$weight)

 

Obviously, the square brackets don't work in this situation but I couldn't find how to do this.

Ideally, I'd want to have sg1,sg2, etc saved into the R environment so that I could use these as the groups for my network suba. Because my code is straight up not working, I don't get results at the moment. It works individually though, creating a subgraph for csgs1 and a list for sg1.

r loops for-loop networking

share|improve this question

edited Mar 27 at 8:59

Curr195

1,32233 gold badges1616 silver badges3535 bronze badges

asked Mar 27 at 4:59

badatrbadatr

311 bronze badge

csg<-clusters(suba)

csgs1<-subgraph(suba, csg$membership==1)

sg1<-cluster_spinglass(csgs, weights=E(a)$weight)

for (k in 1:seq_along(length(csg$csize)))

 csgs[k] <- subgraph(suba, csg$membership==k)

 sg [k] <-cluster_spinglass(csgs[k] , weights=E(a)$weight)

 

share|improve this question

edited Mar 27 at 8:59

Curr195

1,32233 gold badges1616 silver badges3535 bronze badges

asked Mar 27 at 4:59

badatrbadatr

311 bronze badge

share|improve this question

edited Mar 27 at 8:59

Curr195

1,32233 gold badges1616 silver badges3535 bronze badges

asked Mar 27 at 4:59

badatrbadatr

311 bronze badge

edited Mar 27 at 8:59

Curr195

1,32233 gold badges1616 silver badges3535 bronze badges

edited Mar 27 at 8:59

Curr195

1,32233 gold badges1616 silver badges3535 bronze badges

asked Mar 27 at 4:59

badatrbadatr

311 bronze badge

asked Mar 27 at 4:59

badatrbadatr

311 bronze badge

2 Answers
2

active

oldest

votes

1

If you want to really have multiple variables created, then you can do it as follows:

for (k in seq_along(csg$csize))
 assign(paste0("csgs",k), subgraph(suba, csg$membership==1))
 assign(paste0("sg",k), cluster_spinglass(get(paste0("csgs",k)), weights=E(a)$weight))

This will create you csgs1, csgs2, csgs3, etc. and sg1, sg2, sg3, etc., so that you can use them directly later in your code.

Hope it helps.

share|improve this answer

edited Mar 27 at 5:58

answered Mar 27 at 5:26

TeeKeaTeeKea

3,71155 gold badges1919 silver badges3333 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks for that, I was pretty much just looking for the paste0 thing. :)
  
  – badatr
  Mar 27 at 5:54
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I have updated the answer to achieve what you exactly want. Glad I could help.
  
  – TeeKea
  Mar 27 at 5:59
  

  
  
  
  

add a comment | 

0

It is better if you store things as list instead of flooding your environment with multiple objects.

However, you could use assign to create a new object and assign a value like:

assign("a", 10) #Create an object "a" and assign value 10
a
[1] 10

share|improve this answer

answered Mar 27 at 5:09

SonnySonny

2,70511 gold badge66 silver badges1717 bronze badges

add a comment | 

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1

If you want to really have multiple variables created, then you can do it as follows:

for (k in seq_along(csg$csize))
 assign(paste0("csgs",k), subgraph(suba, csg$membership==1))
 assign(paste0("sg",k), cluster_spinglass(get(paste0("csgs",k)), weights=E(a)$weight))

This will create you csgs1, csgs2, csgs3, etc. and sg1, sg2, sg3, etc., so that you can use them directly later in your code.

Hope it helps.

share|improve this answer

edited Mar 27 at 5:58

answered Mar 27 at 5:26

TeeKeaTeeKea

3,71155 gold badges1919 silver badges3333 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks for that, I was pretty much just looking for the paste0 thing. :)
  
  – badatr
  Mar 27 at 5:54
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I have updated the answer to achieve what you exactly want. Glad I could help.
  
  – TeeKea
  Mar 27 at 5:59
  

  
  
  
  

add a comment | 

1

If you want to really have multiple variables created, then you can do it as follows:

for (k in seq_along(csg$csize))
 assign(paste0("csgs",k), subgraph(suba, csg$membership==1))
 assign(paste0("sg",k), cluster_spinglass(get(paste0("csgs",k)), weights=E(a)$weight))

This will create you csgs1, csgs2, csgs3, etc. and sg1, sg2, sg3, etc., so that you can use them directly later in your code.

Hope it helps.

share|improve this answer

edited Mar 27 at 5:58

answered Mar 27 at 5:26

TeeKeaTeeKea

3,71155 gold badges1919 silver badges3333 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks for that, I was pretty much just looking for the paste0 thing. :)
  
  – badatr
  Mar 27 at 5:54
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I have updated the answer to achieve what you exactly want. Glad I could help.
  
  – TeeKea
  Mar 27 at 5:59
  

  
  
  
  

add a comment | 

If you want to really have multiple variables created, then you can do it as follows:

for (k in seq_along(csg$csize))
 assign(paste0("csgs",k), subgraph(suba, csg$membership==1))
 assign(paste0("sg",k), cluster_spinglass(get(paste0("csgs",k)), weights=E(a)$weight))

This will create you csgs1, csgs2, csgs3, etc. and sg1, sg2, sg3, etc., so that you can use them directly later in your code.

Hope it helps.

share|improve this answer

edited Mar 27 at 5:58

answered Mar 27 at 5:26

TeeKeaTeeKea

3,71155 gold badges1919 silver badges3333 bronze badges

for (k in seq_along(csg$csize))
 assign(paste0("csgs",k), subgraph(suba, csg$membership==1))
 assign(paste0("sg",k), cluster_spinglass(get(paste0("csgs",k)), weights=E(a)$weight))

share|improve this answer

edited Mar 27 at 5:58

answered Mar 27 at 5:26

TeeKeaTeeKea

3,71155 gold badges1919 silver badges3333 bronze badges

answered Mar 27 at 5:26

TeeKeaTeeKea

3,71155 gold badges1919 silver badges3333 bronze badges

answered Mar 27 at 5:26

TeeKeaTeeKea

3,71155 gold badges1919 silver badges3333 bronze badges

0

It is better if you store things as list instead of flooding your environment with multiple objects.

However, you could use assign to create a new object and assign a value like:

assign("a", 10) #Create an object "a" and assign value 10
a
[1] 10

share|improve this answer

answered Mar 27 at 5:09

SonnySonny

2,70511 gold badge66 silver badges1717 bronze badges

add a comment | 

0

It is better if you store things as list instead of flooding your environment with multiple objects.

However, you could use assign to create a new object and assign a value like:

assign("a", 10) #Create an object "a" and assign value 10
a
[1] 10

share|improve this answer

answered Mar 27 at 5:09

SonnySonny

2,70511 gold badge66 silver badges1717 bronze badges

add a comment | 

It is better if you store things as list instead of flooding your environment with multiple objects.

However, you could use assign to create a new object and assign a value like:

assign("a", 10) #Create an object "a" and assign value 10
a
[1] 10

share|improve this answer

answered Mar 27 at 5:09

SonnySonny

2,70511 gold badge66 silver badges1717 bronze badges

assign("a", 10) #Create an object "a" and assign value 10
a
[1] 10

share|improve this answer

answered Mar 27 at 5:09

SonnySonny

2,70511 gold badge66 silver badges1717 bronze badges

answered Mar 27 at 5:09

SonnySonny

2,70511 gold badge66 silver badges1717 bronze badges

answered Mar 27 at 5:09

SonnySonny

2,70511 gold badge66 silver badges1717 bronze badges