r how to remove items from a column code example
Example 1: r remove row names
rownames(data) <- c()
Example 2: r drop column by name
R> subset(df, select=-c(z,u))
x y
1 1 2
2 2 3
3 3 4
4 4 5
5 5 6
rownames(data) <- c()
R> subset(df, select=-c(z,u))
x y
1 1 2
2 2 3
3 3 4
4 4 5
5 5 6