[R] How to Rename Column Labels?

[Rainer Schuermann]

You can't do that on disk - try:

> dfr <- read.table ( "/Users/MAC/Desktop/data.txt" )                                                                                        
> dfr                                                                                                  
  A1 A2 A3 A4 A5                                                                                       
1 33 44 55 66 77   
                                                                                    
> colnames( dfr ) <- c( "Mike", "Kate", "Michelle", "Paul", "Young" )                                  
> dfr                                                                                                  
  Mike Kate Michelle Paul Young                                                                        
1   33   44       55   66    77      
                                                                  
> write.table( dfr, "/Users/MAC/Desktop/data.txt" )  

Rgds,
Rainer 
 





On Friday 07 September 2012 22:54:32 Youn Se Hwan wrote:
> Hi,
> 
> How do I rename the column labels in the table?
> 
> For Instance, if I have a table like this, and I want to have the column labels changed from "A1 A2 A3 A4 A5" to "Mike Kate Michelle Paul Young"
> 
>       A1     A2     A3    A4    A5
> 1  33    44      55      66    77
> 2
> 3
> 4
> 5
> 6
> 7
> 7
> 8
> 9
> 
> and my text file location is: ""/Users/MAC/Desktop/data.txt"
> 
> When I type in colnames(data.txt)[1] <- "Income", I get an error message saying "target of assignment expands to non-language object".
> 
> Thanks!
> 
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