1. 2021-01-25 Re: [R] make new collumns with conditions r-help Rui Barradas 2. 2021-01-25 Re: [R] make new collumns with conditions r-help Michael Dewey 3. 2021-01-25 Re: [R] make new collumns with conditions r-help krissievdh 4. 2021-01-25 Re: [R] make new collumns with conditions r-help krissievdh 5. 2021-01-25 Re: [R] make new collumns with conditions r-help Rui Barradas 6. 2021-01-25 Re: [R] make new collumns with conditions r-help Michael Dewey 7. 2021-01-25 [R] make new collumns with conditions r-help krissievdh