This is well described in the manual. Sounds like homework...
el On 15/10/2020 12:39, Nico Gutierrez wrote: > Hi All, > > Trying to get familiar with dplyr so I have a basic question: > > How to summarise sum(Values) per species, maintaining Code column (each > species has a Code): > > Species Values Code > 1 Acanthocybium solandri 33 LC > 2 Makaira nigricans 20 VU > 3 Makaira nigricans 20 VU > 4. Makaira nigricans 20 VU > 5 Sarda sarda 2 LC > 4 Lethrinus lentjan 12 LC > 5 Raja pita 8 DD > 6 Raja pita 2 DD > > I need: > > Species Values Code > 1 Acanthocybium solandri 33 LC > 2 Makaira nigricans 60 VU > 3 Sarda sarda 2 LC > 4 Lethrinus lentjan 12 LC > 5 Raja pita 10 DD > > > Thanks :) > ______________________________________________ > 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. > -- Dr. Eberhard W. Lisse \ / Obstetrician & Gynaecologist e...@lisse.na / * | Telephone: +264 81 124 6733 (cell) PO Box 8421 Bachbrecht \ / If this email is signed with GPG/PGP 10007, Namibia ;____/ Sect 20 of Act No. 4 of 2019 may apply ______________________________________________ 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.
