Hello,
 
I have a dataframe:
dd <- data.frame(b = c("chr2", "chr1", "chr15", "chr13"),  
      x = c("A", "D", "A", "C"), y = c(8, 3, 9, 9), 
       z = c(1, 1, 1, 2)) 
 
>dd
      b x y z
1  chr2 A 8 1
2  chr1 D 3 1
3 chr15 A 9 1
4 chr13 C 9 2

Now I want to sort them according column "b", but only its number is considered:
      b x y z
1  chr1 D 3 1
2 chr13 C 9 2
3 chr15 A 9 1
4  chr2 A 8 1

thanks
jian
 
 
 


      
	[[alternative HTML version deleted]]

