How to add new column to dataframe in r

- How to add column to dataframe in r
- How to add empty column to dataframe in r
- How to add blank column to dataframe in r
- How to add new column in r data frame
- How to add column names to dataframe in r
- How to add column to existing dataframe in r
- How to add a column to a dataframe in r dplyr
- How to add another column to a dataframe in r
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- Add new column to dataframe r based on other columns
- Add new column to dataframe rstudio
- Add new column to dataframe row
- How to add a new column to a dataframe in rstudio
- Add new column to dataframe r dplyr