How to Revert in-built Dataset in R? -

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how revert in-built dataset in r? happened transform it, want use original datset now.

if mtcars dataset got transformed, calling data(mtcars) again original dataset. ie.

mtcars <- mtcars[,2:3] ncol(mtcars) #[1] 2 data(mtcars) ncol(mtcars) #[1] 11

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