add_attr | R Documentation |
Add "map" attributes from df2 to df1.
add_attr(df1, df2)
df1 |
Data frame to receive attributes. |
df2 |
Data frame to give attributes. |
Data frame.
df1 <- data.frame(cars = 1:3) df2 <- data.frame(cars = 1:3) attr(df2$cars, "map") <- data.frame(levels = 1:3, labels = c("Volvo", "Saab", "Opel")) df1 <- add_attr(df1, df2) df1$cars
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