[,1] [,2]

[1,]    9   10

[2,]   11   12

[3,]   13   14

[4,]   15   16

           valuesC

[1,]  9 10      17

[2,] 11 12      18

[3,] 13 14      19

[4,] 15 16      20

 how to change the row header to 1, 2, 3. in the above output row header is not appearing for two columns. kindly guide.