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Can the use of return() after a magrittr pipeline to write an object break something?

how to feed the result of a pipe chain (magrittr) to an objectUse $ dollar sign at end of of an R magrittr pipeline to return a vectordata.table vs dplyr: can one do something well the other can't or does poorly?how to feed the result of a pipe chain (magrittr) to an objectmagrittr and date objectsHow to build a pipeline from data.table to magrittr and back to data.tableHow to write a subsetting operation in magrittr/dplyr: x[!is.na(x)]How can I achieve partial application of a function before using it within a magrittR pipeline?Writing non-standard evaluation syntax with use of magrittr reverse pipeUse $ dollar sign at end of of an R magrittr pipeline to return a vectorHow to call an element of an object created with a magrittr pipe?enquo() inside a magrittr pipeline

0

I often have to manually clean up entries in datasets.
For flexibility and readability, I like to use pipes.
Sometimes I later come across another thing I need to clean up, so I keep a copy-paste'able line in my magrittr pipeline.

In ggplot2, calling an empty theme() at the end helps me to keep coding flexible for later additions. I never encountered problems with that and thought I could do the same with return() in a pipeline.

I think return() is not be meant to use outside functions, so: is there a conceivable way this could break my code?

I also stumbled upon . ans an alternative, but I don't really know what it does and searching info (even using advanced search on SO) is not helping.

Example:

starwars %<>% 
 mutate(hair_color = ifelse(name == "Captain Phasma", "blond", hair_color)) %>%
 mutate(skin_color = ifelse(name == "Captain Phasma", "fair", hair_color)) %>%
 mutate(hair_color = ifelse(name == "Zam Wesell", "blond", hair_color)) %>%
 #mutate(var = ifelse(name == "cond", "replacement", var)) %>% ### for future c/p
 return() # 

NB: I realise this is borderline the tag "coding-style", so I like point out I'm not interested in an opinion-based discussion but advice if this could break my code in certain circumstances. Examples where it does break code are welcome, as are alternative suggestions.

I think these topics/threads are related:

• 
  https://github.com/tidyverse/magrittr/issues/32


• Use $ dollar sign at end of of an R magrittr pipeline to return a vector


• how to feed the result of a pipe chain (magrittr) to an object

r tidyverse magrittr

share|improve this question

asked Mar 8 at 9:30

R'n'ER'n'E

137214

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Well, it might break as soon as the first example in issue 32 returns a different result, i.e., the issue gets fixed. I believe . just calls the { function. You could probably also use identity instead.
  
  – Roland
  Mar 8 at 9:44
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  for your purpose, identity indeed is the appropriate function rather than return
  
  – RolandASc
  Mar 8 at 10:01
  

  
  
  
  

add a comment | 

0

I often have to manually clean up entries in datasets.
For flexibility and readability, I like to use pipes.
Sometimes I later come across another thing I need to clean up, so I keep a copy-paste'able line in my magrittr pipeline.

In ggplot2, calling an empty theme() at the end helps me to keep coding flexible for later additions. I never encountered problems with that and thought I could do the same with return() in a pipeline.

I think return() is not be meant to use outside functions, so: is there a conceivable way this could break my code?

I also stumbled upon . ans an alternative, but I don't really know what it does and searching info (even using advanced search on SO) is not helping.

Example:

starwars %<>% 
 mutate(hair_color = ifelse(name == "Captain Phasma", "blond", hair_color)) %>%
 mutate(skin_color = ifelse(name == "Captain Phasma", "fair", hair_color)) %>%
 mutate(hair_color = ifelse(name == "Zam Wesell", "blond", hair_color)) %>%
 #mutate(var = ifelse(name == "cond", "replacement", var)) %>% ### for future c/p
 return() # 

NB: I realise this is borderline the tag "coding-style", so I like point out I'm not interested in an opinion-based discussion but advice if this could break my code in certain circumstances. Examples where it does break code are welcome, as are alternative suggestions.

I think these topics/threads are related:

• 
  https://github.com/tidyverse/magrittr/issues/32


• Use $ dollar sign at end of of an R magrittr pipeline to return a vector


• how to feed the result of a pipe chain (magrittr) to an object

r tidyverse magrittr

share|improve this question

asked Mar 8 at 9:30

R'n'ER'n'E

137214

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Well, it might break as soon as the first example in issue 32 returns a different result, i.e., the issue gets fixed. I believe . just calls the { function. You could probably also use identity instead.
  
  – Roland
  Mar 8 at 9:44
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  for your purpose, identity indeed is the appropriate function rather than return
  
  – RolandASc
  Mar 8 at 10:01
  

  
  
  
  

add a comment | 

I often have to manually clean up entries in datasets.
For flexibility and readability, I like to use pipes.
Sometimes I later come across another thing I need to clean up, so I keep a copy-paste'able line in my magrittr pipeline.

In ggplot2, calling an empty theme() at the end helps me to keep coding flexible for later additions. I never encountered problems with that and thought I could do the same with return() in a pipeline.

I think return() is not be meant to use outside functions, so: is there a conceivable way this could break my code?

I also stumbled upon . ans an alternative, but I don't really know what it does and searching info (even using advanced search on SO) is not helping.

Example:

starwars %<>% 
 mutate(hair_color = ifelse(name == "Captain Phasma", "blond", hair_color)) %>%
 mutate(skin_color = ifelse(name == "Captain Phasma", "fair", hair_color)) %>%
 mutate(hair_color = ifelse(name == "Zam Wesell", "blond", hair_color)) %>%
 #mutate(var = ifelse(name == "cond", "replacement", var)) %>% ### for future c/p
 return() # 

NB: I realise this is borderline the tag "coding-style", so I like point out I'm not interested in an opinion-based discussion but advice if this could break my code in certain circumstances. Examples where it does break code are welcome, as are alternative suggestions.

I think these topics/threads are related:

• 
  https://github.com/tidyverse/magrittr/issues/32


• Use $ dollar sign at end of of an R magrittr pipeline to return a vector


• how to feed the result of a pipe chain (magrittr) to an object

r tidyverse magrittr

share|improve this question

asked Mar 8 at 9:30

R'n'ER'n'E

137214

starwars %<>% 
 mutate(hair_color = ifelse(name == "Captain Phasma", "blond", hair_color)) %>%
 mutate(skin_color = ifelse(name == "Captain Phasma", "fair", hair_color)) %>%
 mutate(hair_color = ifelse(name == "Zam Wesell", "blond", hair_color)) %>%
 #mutate(var = ifelse(name == "cond", "replacement", var)) %>% ### for future c/p
 return() # 

share|improve this question

asked Mar 8 at 9:30

R'n'ER'n'E

137214

share|improve this question

asked Mar 8 at 9:30

R'n'ER'n'E

137214

asked Mar 8 at 9:30

R'n'ER'n'E

137214

asked Mar 8 at 9:30

R'n'ER'n'E

137214