I am looking for ways to reconfigure ggbiplot plots to match each other. I know that plots are scaled differently to 'fit' the data behind the plot but I wondered if anyone has any advice on how to make plots match.
I used ggarange to make this mutliplot output:
ggarrange(p1,p2,p3,p4,
labels = c("A", "B", "C", "D"),
ncol = 2, nrow = 2)
As an example one of the ggbiplots code is here:
p2 <- ggbiplot(colour30.pca,ellipse=TRUE, groups = colour30$Trait.Feed.Mech.,
obs.scale = 2, var.scale = 1, labels.size = 4, varname.size = 5)+
theme_bw()+
theme(legend.position = "bottom") +
theme(legend.text=element_text(size=10)) +
guides(colour = guide_legend(nrow = 3)) +
scale_colour_npg(name="Feeding Mode (>30 Obs.)") +
xlab ("PC1 (37.4%)")+
ylab ("PC2 (18.0%)")
Below is the output that I would like to neaten up if possible