removing elements in one vector from another in R

Question

I'm new to R and am having trouble finding a way to remove all of the elements of one vector from another. I have a vector of dates called "dates", and want to remove the dates that are weekends (which are in the vector "weekends".

The code below works, but I know there must be a more efficient way to do it rather than one at a time... Let me know!

 for (index in 1:length(weekends)) { datesReformatted <- datesReformatted[datesReformatted != weekends[index]] }

Matthew Plourde · Accepted Answer · 2012-05-31 21:29:58Z

19

this should do the trick

 setdiff(dates, weekends)

answered May 31, 2012 at 21:29

Matthew Plourde

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Dario Galanti · Accepted Answer · 2022-06-01 18:07:25Z

Or this

days <- c("Monday","Tuesday","Wednesday","Thursday","Friday","Saturday","Sunday") weekend <- c("Saturday", "Sunday") days[!days %in% weekend]

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