alessandro carletti a écrit :
> Hi everybody,
> how can I create a loop for plotting parameters for
> each level of a variable, for example:
>
> NAME temperature depth
> aaa 23 -1
> aaa 22 -2
> aaa 24 -1
> bbb 23 -4
> bbb 23 -1
> aaa 22 -1
> bbb 22 0
>
> I mean, I would like R to plot temperature vs depth
> for aaa, then another plot for bbb, and so on.
>
> Is it for loop ok?
> Thanks
Package lattice is your friend. Using your example:
Data <- read.table(file = "clipboard", header = TRUE)
library(lattice)
xyplot(temperature ~ depth | NAME, data = Data)
Best,
Renaud
--
Dr Renaud Lancelot, vétérinaire
Projet FSP régional épidémiologie vétérinaire
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