Skip to content

Source into a specified environment

4 messages · G.Maubach at weinwolf.de, Ivan Calandra, jim holtman

Original
G.Maubach at weinwolf.de
# 
Hi All,

I wish everyone a happy new year.

I have the following code:

-- cut --

modules <- c("t_calculate_RFM_model.R", "t_count_na.R", 
"t_export_table_2_xls.R",
             "t_find_duplicates_in_variable.R", 
"t_find_originals_and_duplicates.R",
             "t_frequencies.R", "t_inspect_dataset.R", 
"t_merge_variables.R",
             "t_openxlsx_shortcuts.r", "t_rename_variables.R", 
"t_select_chunks.R")

toolbox <- new.env(parent = emptyenv())

for (file in modules)
{
  source(file = file.path(
    c_path_full$modules,  # path to modules
    file),
    echo = TRUE)
}

-- cut --

I would like to know how I can source the modules into the newly created 
environment called "toolbox"?

I had a look at the help file for ?source but this function can read in 
only in the current environment or the global environment (= default).

I tried also the following

-- cut --

for (file in modules))
{
  do.call(
    what = "source",
    args = list(
      file = file.path(c_path_full$modules,
                       file),
      echo = TRUE
    ),
    envir = toolbox
  )
}

-- cut --

But this did not work, i. e. it did not load the modules into the 
environment "toolbox" but into the .GlobalEnv.

I also had a look at "assign", but assign() askes for a name of an object 
in quotes. This way I could not figure out how to use it in a loop or 
function to name the element in "toolbox" after the modules names:

assign("t_add_sheet", t_add_sheet, envir = toolbox)  # works
assign(quote(t_add_sheet), t_add_sheet, envir = toolbox)  # does NOT work
assign(as.name(t_add_sheet), t_add_sheet, envir = toolbix)  # does NOT 
work


Is there a way to load the modules directly into the "toolbox" 
environment?

Kind regards

Georg
Ivan Calandra
# 
Hi Georg,

Not sure how it would work in your case, but the 'local' argument to 
source() is not only TRUE or FALSE; you can also specify an environment.

HTH,
Ivan

--
Ivan Calandra, PhD
MONREPOS Archaeological Research Centre and
Museum for Human Behavioural Evolution
Schloss Monrepos
56567 Neuwied, Germany
calandra at rgzm.de
+49 (0) 2631 9772-243
https://www.researchgate.net/profile/Ivan_Calandra
https://rgzm.academia.edu/IvanCalandra
https://publons.com/author/705639/

Le 09/01/2017 ? 17:21, G.Maubach at weinwolf.de a ?crit :
jim holtman
# 
?sys.source

Here is an example of the way I use it:

# read my functions into a environment
.my.env.jph <- new.env()
.sys.source('~/C_Drive/perf/bin/perfmon.r', envir=.my.env.jph)
attach(.my.env.jph)


Jim Holtman
Data Munger Guru

What is the problem that you are trying to solve?
Tell me what you want to do, not how you want to do it.
On Mon, Jan 9, 2017 at 11:21 AM, <G.Maubach at weinwolf.de> wrote:

            

      
      
      
    

        

      
      
    

        

  
  


  


      

    

    

      
      

        


  

        

      G.Maubach at weinwolf.de
    

    

      
      #
    

  


  

      
Hi Jim,

many thanks for your answer.

That's exactly what I need.

Many thanks again.

Kind regards

Georg




Von:    jim holtman <jholtman at gmail.com>
An:     G.Maubach at weinwolf.de, 
Kopie:  R mailing list <r-help at r-project.org>
Datum:  10.01.2017 03:59
Betreff:        Re: [R] Source into a specified environment



?sys.source

Here is an example of the way I use it:

# read my functions into a environment
.my.env.jph <- new.env()
.sys.source('~/C_Drive/perf/bin/perfmon.r', envir=.my.env.jph)
attach(.my.env.jph)


Jim Holtman
Data Munger Guru
 
What is the problem that you are trying to solve?
Tell me what you want to do, not how you want to do it.

        
On Mon, Jan 9, 2017 at 11:21 AM, <G.Maubach at weinwolf.de> wrote:

        
Hi All,

I wish everyone a happy new year.

I have the following code:

-- cut --

modules <- c("t_calculate_RFM_model.R", "t_count_na.R",
"t_export_table_2_xls.R",
             "t_find_duplicates_in_variable.R",
"t_find_originals_and_duplicates.R",
             "t_frequencies.R", "t_inspect_dataset.R",
"t_merge_variables.R",
             "t_openxlsx_shortcuts.r", "t_rename_variables.R",
"t_select_chunks.R")

toolbox <- new.env(parent = emptyenv())

for (file in modules)
{
  source(file = file.path(
    c_path_full$modules,  # path to modules
    file),
    echo = TRUE)
}

-- cut --

I would like to know how I can source the modules into the newly created
environment called "toolbox"?

I had a look at the help file for ?source but this function can read in
only in the current environment or the global environment (= default).

I tried also the following

-- cut --

for (file in modules))
{
  do.call(
    what = "source",
    args = list(
      file = file.path(c_path_full$modules,
                       file),
      echo = TRUE
    ),
    envir = toolbox
  )
}

-- cut --

But this did not work, i. e. it did not load the modules into the
environment "toolbox" but into the .GlobalEnv.

I also had a look at "assign", but assign() askes for a name of an object
in quotes. This way I could not figure out how to use it in a loop or
function to name the element in "toolbox" after the modules names:

assign("t_add_sheet", t_add_sheet, envir = toolbox)  # works
assign(quote(t_add_sheet), t_add_sheet, envir = toolbox)  # does NOT work
assign(as.name(t_add_sheet), t_add_sheet, envir = toolbix)  # does NOT
work


Is there a way to load the modules directly into the "toolbox"
environment?

Kind regards

Georg

______________________________________________
R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide 
http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.