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print dataframe names in loop

William Dunlap 
You can automate the adding of the names to the list with the following
function, so you
can replace the
  dflist<-list(df1,df2,df3)
  names(dflist)<-c("df1","df2","df3")
with
  dflist <- namedList(df1, df2, df3)
If you supply names, such in
  dflist <- namedList(df1, Second=df2, log(df3))
it will use your names and create names for the unnamed ones.

(Once you make a named list of data.frames, you can remove the the
originals from your global environment so you will have a single version
of truth.)

namedList <- function (...)
{
    L <- list(...)
    nms <- names(L)
    if (is.null(nms)) {
        nms <- rep("", length(L))
    }
    if (any(needsName <- is.na(nms) | !nzchar(nms))) {
        nms[needsName] <- vapply(substitute(...())[needsName],
            function(x) deparse(x, nlines = 1L), FUN.VALUE = "")
        names(L) <- nms
    }
    L
}


Bill Dunlap
TIBCO Software
wdunlap tibco.com
On Fri, May 15, 2015 at 5:20 AM, Jim Lemon <drjimlemon at gmail.com> wrote:

            

      
      
      
    

        

      
      
    

        

      
      
    

        

  
  


  


  


  
  

    

  

    
      
    
    
Thread (8 messages)

  

  

    
            
        Kai Mx
        
        print dataframe names in loop
      
      May 15
    
    
      
            
        Jim Lemon
        
        print dataframe names in loop
      
      May 15
    
    
      
            
        David Winsemius
        
        print dataframe names in loop
      
      May 15
    
    
      
            
        Kai Mx
        
        print dataframe names in loop
      
      May 15
    
    
      
            
        Omar André Gonzáles Díaz
        
        print dataframe names in loop
      
      May 15
    
    
      
            
        David Winsemius
        
        print dataframe names in loop
      
      May 15
    
    
      
            
        William Dunlap
        
        print dataframe names in loop
      
      May 15
    
    
      
            
        Kai Mx
        
        print dataframe names in loop
      
      May 16