meaning of CCA result

Just now, I have send you an Email, and ask the question of how to plot
CCA structural correlations figure. Now I have gotten that figure (please
see the attachment), But I can’t see anything from this figure, I only know
blue triangle is represent environment factor, and red diamond is for
metabolic pathway. But I don’t know what does this specified red diamond
represent which pathway, and what is for this triangle?

you might find my lecture on the subject useful:

Data matrices and R scripts for the paper “Quantifying environmental adaptation of metabolic pathways in metagenomics”

With respect to your your metagenomics paper which appeared in PNAS (, I was wondering if it is still possible to access the entire (1) environmental features vs. geographic sites and (2) metabolic features vs. geographic sites matricesas used in the paper? Also, is it still possible to access the R scripts that were used in this work?