Thanks a lot to David and William - I think
ggplot( data=ddd, aes(x=pH, y=BC,group=interaction(type,pH),
col=type))+geom_boxplot()
was very helpful!
All best
Troels
Den 18-05-2021 kl. 02:27 skrev David Winsemius:
ggplot( data=ddd, aes(x=pH, y=BC,group=interaction(type,pH),
col=type))+geom_boxplot()
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