How to undo effect of a command in RStudio?

@as_tech wrote:

Hi,

I accidentally made changes to a data frame of 1000+ rows. Now how do I undo that or should I have to start again ?

The command which I want to undo is

dataframe1$col [dataframe1$col %in% c(“value1”,“value2”)] <- “value”

PS : I also tried using Undo option from Edit menu but it didn’t work…

Thanks

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