Hello, I would like to recursively select the columns of a dataframe by strong the names of the dataframe in a vector and extracting one element of the vector at a time. This I can do with, for instance: ``` vect = names(df) sub_df[vect[1]] ```
The problem is that I would like also to change the values of the selected column using some logic as in `df$column[df$column == value] <- new.value`, but I am confused on the syntax for the vectorized version. Specifically, this does not work: ``` sub_df[vect[1] == 0] = "No" ``` What would be the correct approach? Thank you ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
