How to delete the first row of a dataframe in R?

To delete or remove first row in r data frame, you can use the negative indices as follows:

  data_frame = data_frame[-1,]

To keep labels from your original file, do the following:

data_frame = read.table('data.txt', header = T)
To delete a column:
data_frame$column_name = NULL
For example:
 x = rnorm(10)
 y = runif(10)
df = data.frame( x, y )
df
             x          y
1  -1.74553874 0.24904310
2   0.78970091 0.40401348
3   0.86203201 0.50361443
4  -0.02194766 0.19179475
5   1.07919386 0.70638636
6  -0.23485948 0.41544163
7   0.07170211 0.08740739
8  -2.18997110 0.63813427
9   0.68096662 0.59799302
10  0.05319090 0.13227670
df[-1,] #delete 1st row
             x          y
2   0.78970091 0.40401348
3   0.86203201 0.50361443
4  -0.02194766 0.19179475
5   1.07919386 0.70638636
6  -0.23485948 0.41544163
7   0.07170211 0.08740739
8  -2.18997110 0.63813427
9   0.68096662 0.59799302
10  0.05319090 0.13227670
df$y <- NULL   #delete column “y”
df
             x
1  -1.74553874
2   0.78970091
3   0.86203201
4  -0.02194766
5   1.07919386
6  -0.23485948
7   0.07170211
8  -2.18997110
9   0.68096662
10  0.05319090