If I do understand this is what you are looking for :
plot(x, choices = c(1, 2), display = c("sp", "wa", "cn"),
scaling = 2, type, xlim, ylim, const, ...)
The option choices helps you to select the axis. In your case it would
be choices = c(1,3) [axis 1 vs 3] or choices = c(2,3) [axis 2 vs 3]
Hope this would help you.
Abdoul
Le mar. 26 févr. 2019 à 19:20, Lara Silva <lara.sfp.si...@gmail.com> a
écrit :
> Hello,
>
> I am using the VEGAN package to do PCA of my variables.
>
>
> bio.pca <- rda(variables, scale=TRUE) # Argument scale=TRUE
>
> bio.pca
>
> summary(bio.pca) # Default scaling 2
>
> summary(bio.pca, scaling=2)
>
>
>
> sum_bio <-summary(bio.pca)
>
> names(sum_bio)
>
> sum_bio$species
>
>
>
> #make basic plot
>
> biplot(env.pca,
>
> display = c("sites",
>
> "species"),
>
> type = c("text",
>
> "points"))
>
>
>
> In my plot I have PCA 1 e PCA 2. Is there a way to plot the PCA 3?
>
>
> Thanks,
>
>
> Lara
>
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>
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--
Abdoul Ousmane DIA
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