Drop a list of columns from data frame [duplicate]

Question

Possible Duplicate:
Drop Columns R Data frame

I have a list of variables I would like to drop from IRIS table as follow:

dropList <- c("Sepal.Length", "Sepal.Width")

How I can use this list to drop from IRIS data frame? (I don't want to refer to positions explicitly)

Thanks.

Marius · Accepted Answer · 2012-11-26 03:43:45Z

8

There's some other ways you can do this, like using the select argument of subset, but if dropList is coming to you as a character vector from somewhere else, this works pretty well.

data(iris)
dropList <- c("Sepal.Length", "Sepal.Width")
iris2 <- iris[, !colnames(iris) %in% dropList]

answered Nov 26, 2012 at 3:43

Marius

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2 Comments

Dason Over a year ago

You don't actually need data(iris) - it's loaded lazily for you

AdamNYC Over a year ago

Thank you so much. It saves me so much time

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