R from local disk

Installing multiple packages from local zip files in R [Windows 7 32 bit and RGui (32 bit) i386 3.3.0]

* I don't use R, not even Stack.

In a simple way we do ---

• Download the zip file of the package, save it to your local drive.

• Run the following R commands

  install.packages(file.choose(), repos=NULL)
  
        
  
          
          
          
        
  
      

  • The command file.choose()
    
    will show a window where you can select the file .zip
    
    or file tar.gz
    
    you uploaded it to.

Now we are trying to install some packages from local disk ---

• Download the zip file of the package, save it to your local drive.
• Open RGui i386 3.3.0.

• In the R Console, run the following commands:

  result <- array(list.files(path = "D:/Backup/R tutorial/downloaded_packages", pattern = "*.zip", all.files = FALSE, full.names = FALSE, recursive = FALSE))
  
        
  
          
          
          
        
  
      

  • result
    
    keep a list of zip file names in an array until the value is replaced in some way or exits RGui (workspace).
  • path = "..."
    
    replace your own drive path.
  • pattern = "..."
    
    might replace "tar.gz"
    
    , but I haven't tested it yet.

• Now run a loop to install all zip files:

  for(i in 1:length(result)) {
    x <- paste("D:/Backup/R tutorial/downloaded_packages/",result[i], sep="", collapse = NULL)
    print(i)
    print(result[i])
    install.packages(x, repos = NULL, type = "win.binary")
    # readline(prompt="Press [enter] to continue")
  }
  
        
  
          
          
          
        
  
      

  • In x
    
    we save the filename, paste
    
    help me to do this.
  • install.packages(x, repos = NULL, type = "win.binary")
    
    installing zip file (s) one by one.
  • readline
    
    accepts a request from the user to continue the loop. Here I will comment on it#
    
    

• Performing a normal cycle -

  [1] 7402   
  [1] "RKEELdata_1.0.3.zip"
  Installing package into ‘C:/Users/Amitava Kar/Documents/R/win-library/3.3’
  (as ‘lib’ is unspecified)
  
        
  
          
          
          
        
  
      

• Common error and exit loop -

  [1] 7403
  [1] "RKEELjars_1.0.15.zip"
  Installing package into ‘C:/Users/Amitava Kar/Documents/R/win-library/3.3’
  (as ‘lib’ is unspecified)
  Error in read.dcf(file.path(pkgname, "DESCRIPTION"), c("Package", "Type")) : 
    cannot open the connection
  In addition: Warning messages:
  1: In unzip(zipname, exdir = dest) : error 1 in extracting from zip file
  2: In read.dcf(file.path(pkgname, "DESCRIPTION"), c("Package", "Type")) :
    cannot open compressed file 'RKEELjars/DESCRIPTION', probable reason 'No such file or directory'
  
        
  
          
          
          
        
  
      

  • This error shows when the zip file is corrupted or unreadable.
  • print(i)
    
    shows the number of arrays read, eg. [1] 7403
    
    
  • print(result[i])
    
    shows a zip file eg. [1] "RKEELjars_1.0.15.zip"
    
    

  • now manually download and replace the zip file and change in a loop for(i in 1:length(result))
    
    to for(i in 7403:length(result))
    
    and run again, for example

    for(i in 7403:length(result)) {
    x <- paste("D:/Backup/R tutorial/downloaded_packages/",result[i], sep="", collapse = NULL)
    print(i)
    print(result[i])
    install.packages(x, repos = NULL, type = "win.binary")
    # readline(prompt="Press [enter] to continue")
    }