Select or drop columns
Select or drop columns from a data.table
select.(.df, ...)
.df |
A data.frame or data.table |
... |
Columns to select or drop.
Use named arguments, e.g. new_name = old_name, to rename selected variables.
|
test_df <- data.table(
x = c(1,1,1),
y = c(4,5,6),
double_x = c(2,2,2),
z = c("a","a","b")
)
test_df %>%
select.(x, y)
test_df %>%
select.(x:z)
test_df %>%
select.(-y, -z)
test_df %>%
select.(starts_with("x"), z)
test_df %>%
select.(where(is.character), x)
test_df %>%
select.(stuff = x, y)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.