r - Reading Data from different locations through a function -


i pretty new r , struggling below scenario : need write function reads data different locations on pc(like downloads,documents,desktop etc). each file in these locations have unique id. function take id , location arguments. :

 onefunc <- function(directory,id)   {     y <- read.csv("directory/id")   }

i need pass directory , id read function. above code throws error - cannot open file 'directory/id': no such file or directory. need pass in read.csv exactly?

what have right inside function string (sequence of characters). r not recognize these variables. need variables directory , id string. host of options available that:

  • sprintf('%s/%s', directory, id)
  • paste(directory, id, sep = '/')
  • file.path(directory, id), meant constructing file paths. other functions generic string building functions. recommend using function in case specific situation, , work across platforms.

you can feed string read.csv perform actual reading.


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