temperature mean on absence presence data

Hello, i'm beginner on Rstudio, i need i need help for a report.
I Have one data with temperature associate to the longitude and latitude. My seconde data is more than 600 species of fish, wich is encoded by 0= absence and 1= presence. And i would like to get a new column with the mean temperature for each species. Knowing that the presence absence is linked to the longitude, latitude data.

I hope somebody can help me.

best wishes


You could study how to transform data

Particularly chapter 5

thank you i will do it !

This topic was automatically closed 21 days after the last reply. New replies are no longer allowed.

If you have a query related to it or one of the replies, start a new topic and refer back with a link.