Vegan_package: Plot PCA

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