Re: [R] how to delete rows by a list of rownames

Thank you, Michael This is what i need. It works fine -- View this message in context: http://r.789695.n4.nabble.com/how-to-delete-rows-by-a-list-of-rownames-tp3930206p3931200.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-pr

[R] how to delete rows by a list of rownames

Hello I have a list of row names that needs to be deleted from a data frame. how do i do that. one of the columns in the data frame contains the row names as numbers I can also select by this column(will it be easier?). Thank you -- View this message in context: http://r.789695.n4.nabble.com/

Re: [R] how to delete rows by a list of rownames

I think that only works because the rows are ordered and have no names: try something more like this: df1 <- data.frame(1:20, 21:40, 31:50) rownames(df1) <- sample(letters, 20) toDrop <- sample(rownames(df1), 5) df1[ !(rownames(df1) %in% toDrop), ] or alternatively toKeep <- sample(rownames(df

Re: [R] how to delete rows by a list of rownames

here is one way df1 <- data.frame(c(1:20), c(21:40), c(31:50)) list1 <- c(3, 6, 20) df2 <- df1[-list1,] hanansela wrote: > > Hello > I have a list of row names that needs to be deleted from a data frame. How > do i do that? > one of the columns in the data frame contains the row names as nu