[R] Dplyr question

[Dr Eberhard W Lisse]

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 :)
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-- 
Dr. Eberhard W. Lisse   \         /       Obstetrician & Gynaecologist 
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